01. K.M. Khalequzzaman, I. Hossain and M.
Ashrafuzzaman. 1998. Study on Seed-Plant-Seed transmission of Helminthosporium turcicum in Maize.
Bangladesh Journal of Seed Science and
Technology, 2 (1 & 2): 19-24.
Abstract: Seeds of three cultivars of maize viz. Mohar, Shuvra and Barnali were
studied by blotter incubation test for seed-borne infection of Helminthosporium
turcicum and found that 31-41% seed yielded H. turcicum. The seeds
of tested seed lots were sown in the field. Under field condition 55.3-62.7%
plants were recorded with leaf spot symptoms caused by H. turcicum.
Moreover, 3.8-5.5% plants resulted leaf blight symptoms at 105 days after
sowing. The freshly harvested seeds of maize cultivars Mohar, Shuvra and
Barnali yielded 41, 48 and 34% H. turcicum by blotter incubation tests.
02. K.M. Khalequzzaman, I. Hossain and M.M.
Hossain. 1998. Effect of fungicides and potash in controlling grey leaf spot of
coconut. Bangladesh Journal of Training and Development, 11 (1&2): 151-156.
Abstract: The efficacy of five fungicides viz. 0.05% Tilt 250 EC, 0.2% Macuprax,
0.2% Cupravit 50 WP, 0.2% Dithane M-45 and 0.1% Bavistin and five doses of MP
fertilizer viz. 500g, 750g, 1000g, 1250g
and 1500g/plant were tested to control grey leaf spot of coconut caused
by Pestalotiopsis palmarum for a period of three years (1995-98). The
disease incidence was significantly reduced by all the fungicides tested. The
fungicides reduced LAD from 48.81% to 84.53%, where Bavistin was found best in
reducing the leaf area disease. In case of MP fertilizer 1000g MP/Plant to
1500g MP/Plant were found most effective in controlling grey leaf spot
coconut.
03.
K.M. Khalequzzaman, M.T. Talukder, M.K. Jamil, M.M.U. Amin and
M. Ashrafuzzaman. 2000. Study of the Aspergillus
species of groundnut. Bangladesh Journal of Environmental Science, 6 :
56–61.
Abstract: Three varieties of
groundnut (Dhaka-1, DG-2 and ACC-12) were taken under to find out the Aspergillus spp. associated with seeds,
seedlings and soils under shallow and deep planting during winter season and
total population of Aspergillus spp.
between two assay periods (pre-sowing and post-sowing). Pre-sowing test in the
laboratory revealed association of a total 7 Aspergillus spp. with the seeds and germination was highest in
ACC-12 (92.75 %) and lowest in Dhaka-1 (86.50 %). The uprooted diseased
seedlings revealed highest percentage of Aspergillus
spp. in Dhaka-1 and lowest was observed in DG-2. A total of 9 species of Aspergillus were identified from
groundnut field soil during post-sowing assay period. For pathogenecity test of
A. niger, 25-45% pre-emergent death
and 20-45% root rot were observed among the three varieties.
04. M.H.
Rashid, I. Hossain, M.M. Zaman, S.H. Howlader and K.M. Khalequzzaman. 2000. Reaction of some exotic wheat germplasms
against Bipolaris sorokiniana.
Bangladesh Journal of Agricultural Research, 25 (3): 399-405.
Abstract: Thirty one wheat germplasms from Brazil along with a local check (Kanchan)
were evaluated for their reaction to leaf blight disease caused by Bipolaris
sorokiniana under in-vitro and glasshouse condition. Under
glasshouse condition, 1, 12, 16 and 3 germplasms showed highly resistance,
resistance, moderately resistance and moderately susceptible, respectively, at
flag leaf stage. Under excised leaf method at seedling stage 8, 18, 3 and 3
germplasms were recorded as highly resistant, resistant, moderately resistant
and moderately susceptible, respectively. But at maximum tillering stage, 1, 1,
5, 24 and 1 germplasms were graded as highly resistant, resistant, moderately
resistant, moderately susceptible and susceptible, respectively. At flag leaf
stage, 9, 10, 6, 5 and 2 germplasms graded as highly resistant, resistant, moderately
resistant, moderately susceptible and susceptible, respectively.
05. M.M.
Alam, M.K. Hasan, K.M. Khalequzzaman, M.A. Khan and M.S. Alam. 2000. Study of
onion storage practices at farmers level in Dinajpur and Rajshahi. Journal of
Agricultural Education and Technology, 3 (1 & 2): 41–44.
Abstract: The study was undertaken to evaluate the existing post harvest practices used
by the onion growers of Khanshama upazilla of Dinajpur district and Durgapur of
Rajshahi district. The components of the study were i) harvesting period after
planting ii) harvesting implements, harvesting process, transportation,
grading, storage and storing place. The findings showed that majority farmers
of both the upazilla harvested onion after 100-110 days of planting. Most of
then fixed harvest time when 41-80% neck fall occurred. Eighty to 90% of the
farmers use ladder for rest of the neck falling. On an average 60% farmers did
not practice curing of onion. With regard to storing and storing place it was
observed that farmers of both the upazilla store onion on ceiling under tin
roof. Majority of the farmers reported that spoilage of onion was caused fungal attack and softening.
06.
K.M. Khalequzzaman, S.N. Uddin, A. Monin, S.M.A. Shiblee and
M.H. Rashid. 2000. Effect of fungicides
in controlling tikka disease of groundnut. Bangladesh Journal of Environmental
Science, 6: 106–111.
Abstract: Relative efficacy of
three fungicides-Dithane M-45, Tilt 250 EC and Cupravit 50 WP each in three
doses was evaluated in controlling cercospora leaf spot of groundnut caused by Cercospora arachidicola Hori. and Cercosporidium personatum (Berk and
Curt.). The best fungicidal performance was obtained with Dithane M-45 (4800
ppm) applied thrice at 15 days interval in reducing leaf area infection and
increased yield of normal and total pods. This was followed by Tilt 250 EC with
250 and 375 ppm. Cupravit 50 WP
gave the poorest response.
07. S.M.K.
Alam, K.M. Khalequzzaman and M.M.A.
Reza. 2000. Screening of brinjal
germplasms against bacterial wilt. Bangladesh Journal of Training and
Development, 13 (1 & 2): 237-242.
Abstract: A
field experiment was conducted in two consecutive cropping seasons during 1996-
97 and 1997-98 to identify the resistant germplasms of brinjal against
bacterial wilt. Fifteen brinjal germplasms were tested. The seedlings were
inoculated with Ralstonia solanacearum
by root dipping for six hours into the bacterial suspension before
transplanting. Two cultivars/lines namely Oli-begoon and Shingnath showed
moderately resistant, and Uttara showed moderately susceptible reaction. These
three germplasms gave higher yield. All other varieties were moderately
susceptible to highly susceptible and gave lower yield. Oli-begoon, Shingnath
and Uttara may be use for cultivation and also for developing resistant
cultivar against bacterial wilt.
08.
M.H. Rashid, K.M.
Khalequzzaman and M.A.A. Khan. 2000. Efficacy
of different fungicides in controlling root rot of French bean caused by Rhizoctonia
solani Kuhn. Bangladesh Horticulture, 28 (1&2): 9-11.
Abstract: Five
fungicides, such as, Vitavax-200 (Carboxin), Bavistin 50WP (Cabendazim),
Dithane M-45 (Mancozeb), Rovral 50WP (Iprodione) and Tilt 250 EC
(Propiconazole) were used for treating the seeds in the 1st
experiment. In another experiment, seeds were treated as well as soil drenched
by Bavistin 50WP and Vitavax-200. It was noticed that seed treatment along with
soil drenching was much more effective than the seed treatment or soil
drenching alone. However, the lowest incidence (13.67%) of root rot was
recorded when seeds treated with Tilt 250EC followed by Bavistin (13.70%),
Rovral 50WP (14.53), Vitavax-200 (17.69%), Dithane M-45 (21.67%) and the
control (29.55%) in the 1st experiment. In the 2nd
experiment, the least incidence of root rot was noticed when seeds were treated
and soil drenched with Bavistin (5.23%) followed by Vitavax-200 (11.87%)
compared to the control (27.89%). Bavistin @ 0.1% may be recommended for seed
treatment along with soil drenching in controlling root rot of french bean.
09.
M.M.U.
Amin, S.A. Tania and K.M. Khalequzzaman.
2000. Influence of seed size on the performance of mungbean varieties under
post-rice and upland cropping systems. Bangladesh Journal of Agriculture, 25 (1
& 2): 1-10.
Abstract: This experiment was conducted at Kasetsart University, Kamphaeng Saen
campus, Thailand from November 1998 to February 1999. Two seed sizes, small
(4.0-5.0 g/100 seed) and large (6.0-7.5 g/100 seed) of two varieties, KPS-1 and
CN-60 were tested under two cropping systems, lowland (post-rice) and upland.
The highest yield of 1.5 t/ha was obtained from variety KPS-1 and 1.6 t/ha from
variety KPS-1 under the upland cropping system. However, seed size did not
significantly affect yield. The plant stands/m2 was significantly
higher in variety KPS-1 (107) than CN-60 and in upland (110) than lowland
cropping system. Variety KPS-1 can be grown in both upland and lowland cropping
systems. From the economic analysis it could be said that mungbean cultivation
in post-rice lowland is more beneficial than upland cropping system.
10. M.A.K. Al Azad, K.M. Khalequzzaman, A. Momin, M.B.
Miah and M.A.R. Sarkar. 2001. Effect of urea on the incidence of grain spotting and
fungi associated with spotted rice grains. Bangladesh Journal of Environmental Science, 7: 164–167.
Abstract: Effect of Urea on the incidence of rice grain spotting was studied in
three cultivars viz. BR 3, BR 11 and Pajam. BR 3 yielded maximum 8.61 % grain
spotting when 150 kg/ha Urea was applied, while cultivar Pajam developed lowest
(2.71 %) grain spotting at control. Grain spotting was found to be
significantly influenced by the interaction effect between cultivars and doses
of Urea. Four fungi viz. Drechslera
oryzae, Fusarium moniliformae, Curvularia oryzae, Pyricularia oryzae and
also other unidentified microorganisms were detected on the rice grains. The
most prevalent fungi found to be associated with spotted grains in all the
three cultivars in order of prevalence were F.
moniliformae and D. oryzae.
11. K.M. Khalequzzaman, M.T. Talukder, A.
Muqit, M.S. Islam and M. Ashrafuzzaman. 2001. Study of the seed and soil borne
fungi and seedling diseases of groundnut. Bangladesh Journal of Science and
Technology, 3 (1): 93–102.
Abstract: Three varieties of
groundnut (Dhaka-1, DG-2 and ACC-12) were taken under consideration to study
seed and soil borne fungi, seedling diseases and extent of disease development
under shallow and deep sowing (4.0 cm and 6.5 cm) of seeds. Pre-sowing test in
the laboratory revealed association of a total of 10 fungal species with the
seeds. Aspergillus niger and A. flavus were the most predominant
among the fungi isolated. Depth of sowing did not play significant role in the
percentages of seed germination, pre-emergent death and post-emergent death but
plants grown through deeper sown seeds had developed relatively higher number
of diseased plants and total disease development. Varietal differences had
marked influences in disease development in all stages. Field soil
(post-sowing) and infected seedlings yielded the fungi : Aspergillus spp., Fusarium
spp., Pythium sp., Rhizoctonia sp. and several other species. Fusarium spp. were associated more
frequently than the others, although no species of Fusarium was found in seeds before sowing. A total of 22 different fungal species were
isolated from the soil samples collected during post-sowing period, of which Aspergillus spp. were the most dominant followed by Fusarium spp.
12. A.K.M.Z.
Rahman, K.M. Khalequzzaman, A. Muqit
and S.N. Mozumder. 2001. Reaction
of brinjal lines/cultivars against brinjal shoot and fruit borer and bacterial
wilt at Chittagong region. Bangladesh Journal
of Environmental Science, 7: 168–171.
Abstract: The experiment was
conducted at Regional Horticultural Research
Station, BARI, Hathazari, Chittagong during winter season of 1997-98
using twelve local brinjal cultivars and in 1998-99, eighteen brinjal
lines/cultivars were used with a view to
find out the brinjal lines/cultivars tolerant to the brinjal shoot and fruit
borer and to identify the sources of resistant to bacterial wilt for use in
breeding programme and for cultivation. Among the test lines/cultivars, Medium
white (Kathirhat), White round (Kathirhat), Puta small (Hathazari), Jat begun,
BL 083, BL 0117, BL 072, BL 0118 and BL 085 gave better performance against
brinjal shoot and fruit borer, and bacterial wilt, and also gave higher yield.
13. A.Q.M. Bazlur
Rashid, Kakoli Sarker and K.M.
Khalequzzaman. 2001. Control of Bipolaris leaf blight of wheat with
foliar spray of Tilt 250 EC. Bangladesh Journal of Plant Pathology, 17 (1 &
2): 45–47.
Abstract: A study was under
taken to find out the efficacy of Tilt 250 EC to control Bipolaris leaf blight of wheat (Bipolaris
sorokiniana). Water suspension (0.1%) of the
fungicide was sprayed for one to six times. The maximum of 58.25 percent
disease index (PDI) was found in plot sprayed with plain water (Control). The
PDI value was reduced to 21.75% when Tilt was sprayed for six times. The
quantity of black pointed and shriveled grains was reduced and yield of grains
was increased significantly due to spray with the fungicide. Reduction in
disease severity and increase in yield were corroborated with the number of
sprays.
14.
Md.
Kalim Uddin and K.M. Khalequzzaman. 2001. Yield
and yield contributing characters of boro rice as affected by plant spacing
under varied tillage levels at the level barind tract agroecological region.
Bangladesh Journal of Environmental
Science, 7: 172–176.
Abstract:
An
experiment was carried out to find out
the optimum plant spacing(s) and tillage level(s) for maximizing the
yield of boro rice at the Level Barind Tract Agroecological Region. Three plant
spacings viz., 25 cm X 15 cm, 20 cm X 15 cm and 15 cm X 15 cm, and four tillage
levels viz., zero tillage, minimum tillage, moderate tillage and conventional
tillage were compared. Significantly highest grain yield (5.20 t/ha) was
obtained from 20 cm X 15 cm plant spacing. No significant yield difference was
observed due to different tillage levels. The grain yield due to different
tillage levels varied from 4.88-5.06 t/ha. Zero or minimum tillage levels with
20 cm X 15 cm plant spacing also showed better economic performance and
indicates a good alternative to conventional tillage.
15. Md. Farid Ahmed, K.M. Khalequzzaman, Md. Nazrul Islam,
M.K. Anam and M. Tahasinul Islam. 2002. Effect of plant extracts against Bipolaris oryzae of rice under in
vitro conditions. Pakistan Journal of Biological Sciences, 5 (4): 442-445.
Abstract: Twelve
seed samples of rice were tested and all were found infected by Bipolaris oryzae the cause of brown spot
disease. Highest (5.5%) and lowest (1.5%) incidence was found in sample of
Bhabokhali and Mahozompur, respectively. Four plant extracts viz. Biskatali (Polygonum hydropiper), Onion (Allium cepa), Garlic (Allium sativum) and Neem (Azadirachta indica) were evaluated
against Bipolaris oryzae. Among the
plant extracts, Neem and Garlic were effective against Bipolaris oryzae at 1:1 dilution. All other plant extracts were
effective against Bipolaris oryzae at
higher concentration.
16. M.K.
Anam, G.A. Fakir, K.M. Khalequzzaman,
M.M. Hoque and Abdur Rahim. 2002. Effect of seed treatment on the incidence of
seed-borne diseases of okra. Pakistan Journal of Plant Pathology, 1 (1): 1–3.
Abstract: The
experiment was conducted to know the effect of seed treatment on the incidence
of seed-borne fungal diseases and on production of seed yield of okra. The
lowest germination (95.0%) was recorded in unclean farmers’ seeds; while
highest germination (99.0%) was recorded in Vitavax-200 treated seeds followed
by clean apparently healthy seeds (98.5%). Seed-borne fungal diseases of okra
in the field, five diseases viz. Foot and root rot, Anthracnose and die-back,
Cercospora leaf spot, Corynespora leaf spot and leaf blight, respectively
caused by Fusarium oxysporum,
Colletotrichum dematium, Cercospora abelmoschi, Corynespora cassiicola and Macrophonina phaseolina were recorded.
The incidence of five seed-borne diseases have been found to be reduced by the
use of seeds treated with Vitavax-200 and clean apparently healthy seeds.
Vitavax–200 treated seeds as well as clean apparently healthy seeds increased
the seed yield by 21.62 and 15.31%,
respectively, over the unclean farmers’ seeds.
17. K.M. Khalequzzaman, Tanima Sultana,
Md. Tariqul
Islam, M. Abu Hanif Shaikh and Md. Kalim Uddin. 2002. Study on socio-economic and
agricultural conditions of the Jamuna river bank site at Sirajganj. Bangladesh
Journal of Environmental Science, 8: 45–50.
Abstract: The experiment was
conducted at the Jamuna river bank site at Sirajganj district during 2000 with
a view to know the socio-economic and agricultural conditions. Migrated
families were maximum because they had no land moving anywhere (43.48%) and
this is heredity (36.52%) problem. They were migrated from one place to another
due to river bank erosion (87.39%). Maximum families had bamboo or very simple
(kacha) house (86.96 %). Kerosin oil (91.74%) is used for lighting the houses.
They used cowdung, wood and branch of trees for cooking. 55.22% families used
kacha latrines. Shallow tube-wells were used by 94.35% families. There was
74.35 % land less family. 60.37% families had cultivated land. The crops grown
of the area were rice, jute, sugarcane etc. 36.52 % families had educated level
upto primary stage. 56.52% families dependented on agriculture. Their monthly
income range was 1000-7001 taka/family.
18. A.S.M. Monjur Alam, K.M. Khalequzzaman, M.K. Anam, Nazrul
Islam and G.M.M. Rahman. 2002. Effect of tree-rice associations and
orientations on the incidence of major diseases of rice. Online Journal of
Biological Sciences, 2 (7): 492 – 493.
Abstract: The experiment was
conducted to determine the effect of tree species associations with different
orientations grown as intercrop with rice on the incidence of major rice
diseases (Bacterial leaf blight, Blast, Sheath blight and Brown spot).
Jhau-rice associatoion developed least incidence of four major diseases and the
highest disease severity was recorded in Sissoo-rice association. The highest
and lowest severely were recorded in O3 and O0,
respectively. Out of five tree-rice associations highest yield (4.345 t ha-1)
was obtained in case of Jhau-rice (T2) association and lowest yield
(2.550 t ha-1) was recorded in Sissoo-rice (T5)
association. Regarding different orientations, the highest yield (5.486 t ha-1) was obtained from open
field (O0-orientaton) and the lowest yield (1.522 t ha-1)
was recorded in North-1.5 meter from the tree base (O3).
19. M.R. Alam, M.A.R.
Sarkar, K.M. Khalequzzaman, Md.
Nazrul Islam, M.K. Anam and Md.
Abdur Rahim. 2002. Effect of timing of nitrogen application on the growth and
yield of separated tillers of transplant aman rice. Pakistan Journal of
Biological Sciences, 5 (9): 900–902.
Abstract: The
experiment was conducted to find out the effect of different cultivars and time
of nitrogen application on the growth and yield of separated tillers of
transplant aman rice. Tillers of three rice cultivars (BRRI Dhan 32, BR 23 and
BR 22) and five timings of nitrogen application were used as treatments. The
individual effect of var. BR 23 and the three equal splits of application of
nitrogen as basal, at early tillering and at panicle initiation stages gave the
best results on plant height, no of tillers hill-1, no of leaves
hill-1, leaf area index, no of grains panicle-1, weight
of 1000 grain, grain yield, straw yield, biological yield and harvest index
having 121.21 and 122.54 cm, 9.10 and 9.26, 36.72 and 39.91, 4.92 and 4.68,
118.60 and 118.50, 23.98 and 22.33 g, 4.55 and 4.79 t/ha, 6.15 and 6.60 t/ha,
10.70 and 11.40 t/ha, 42.62 and 41.24 %, respectively. The interaction effect
of var. BR 23 and T2 was highest on these parameters. Rice var. BR
23 and three splits of nitrogen application may be used for increasing growth
and yield of separated tillers of transplanted aman rice.
20. A.K.M.Z.
Rahman, S.N. Alam, M.N. Uddin, M.A. Mannan and K.M. Khalequzzaman. 2002. Seasonal fluctuation of whitefly of
guava and their chemical control. Bangladesh Journal of Agricultural Research,
27 (2): 227–235.
Abstract: Seasonal fluctuation of whitefly and the efficacy of four insecticides
for their effective control were studied in the existing guava orchard of
Regional Agricultural Research Station, Hathazari, Chittagong. During the study
period of two consecutive cropping seasons, remarkable variation in population
fluctuation was observed between the seasons. In 1997-98, the number of
whitefly per leaf was higher than that of 1998-99. On the other hand, percent
leaf infestation of guava by whitefly adult was higher in 1998-99 than 1997-98.
This variation of the population fluctuation was related with rainfall pattern
of the cropping seasons. Due to long dry period and less rainfall in 1998-99,
whitefly population was well distributed among the leaves but in 1997-98, when
each month received at least a little rainfall, the population was confined in
a certain number of leaves. During the cool dry period, the population raised
to its peak, in the month of November in 1997-98 and December in 1998-99, which
declined thereafter and reduced to a very negligible number or zero during the
wet and hot months i.e. May to July. Among the four insecticides tested
(Nuvacron 40 SL, Perfekthion 40 EC, Nogos 100 EC and Basathrin 10 EC), the
number of whitefly adults survived per leaf were lowest in the plants treated
with Nuvacron 40 SL @ 2.0 ml/l of water followed by Perfekthion 40 EC @ 2.0
ml/l of water compared with other two insecticides and untreated control at 1,
7 and 28 days after spraying.
21. M.A. Jinnah, K.M. Khalequzzaman,
M.S. Islam, M.A.K.S. Siddique and M. Ashrafuzzaman. 2002. Control of bacterial
wilt of tomato by Pseudomonas fluorescens
in the field.
Pakistan Journal of Biological Sciences, 5 (11): 1167–1169.
Abstract: The experiments were
conducted to evaluate the efficacy of antagonistic P. fluorescens in
controlling wilt of tomato caused by R.
solanacearum in the field. The tomato variety Manik showed 42.59 % and Pusa
Rubi showed 46.29 % bacterial wilt. The lowest bacterial wilt incidence (35.18
%) was recorded in T2 (Soil drenching of P. fluorescens) and
highest incidence was in control plot. Plant height, number of branches/plant,
number of fruits/plant, total fruit weight/plant and fruit yield (t ha-1)
was significantly highest in T2 and lowest was in untreated control
(T0). Soil drenching by using P.
fluorescens suspension contained 109 cfu/ml (T2) may
be used for controlling wilt and increasing yield of tomato.
22. Md. Masud Alam, Md.
Kamrul Hasan, Rumman Ara, K.M. Khalequzzaman, Md. Alauddin Khan. 2002. Effect
of different storage conditions for storing dry chilli. Bangladesh Journal of
Environmental Science, 8: 149-153.
Abstract: The
experiment was conducted at Spices Research Centre, Bogra during 1999-2000 and
2000-2001 to find out the best storing method which minimize the storage loss
of dry chilli. The local variety of chilli was used in this trial. Thirteen
storage containers were used as treatment. It was found that double polythene
lining resulted the lowest final moisture content 9.01 and 8.20 %, highest germination 97.50 and
98.39 %, and attractive shining colour and excellent storage conditions in
1999-2000 and 2000-2001 storage year, respectively. Comparatively Gunny bag,
doley and earthen pot showed worst performance. Final moisture (%) was
negatively correlated with germination (%) in both the years. The experiment
results also revealed that the storage with double polythene lining or tin
container with inside polythene may be used for storing dry chilli.
23. Md. Farid Ahmed, K.M. Khalequzzaman, Md. Nazrul Islam,
M.K. Anam and M. Tahasinul Islam. 2002. Effect of fungicides against Bipolaris oryzae of rice under in
vitro condition. Pakistan Journal of Plant Pathology, 1 (1): 4-7.
Abstract: Twelve seed samples
of rice were tested and all were found infected by Bipolaris oryzae the cause of brown spot disease. Highest (5.5%)
and lowest (1.5%) incidence was found in sample of Bhabokhali and Mahozompur,
respectively. Four fungicides viz. Bavistin, Hinosan, Tilt 250 EC and Dithane
M-45 were evaluated against Bipolaris
oryzae. Dithane M-45 was the best with 100% reduction of the prevalence of
the pathogen and inhibited the mycelial growth at 0.3% of the seed weight as
seed treatments and 500 ppm as mycelial growth inhibition test followed by Tilt
250 EC, Hinosan and Bavistin. All test fungicides were effective against Bipolaris oryzae at higher
concentration.
24. M.A.K.S. Siddique, A.Q.M. Bazlur Rashid, I. Hossain, K.M. Khalequzzaman and Md.
Kalim Uddin. 2002. Reaction of some wheat varieties to seed borne Bipolaris sorokiniana and Fusarium moniliforme. Pakistan Journal
of Biological Sciences, 5 (11): 1211–1213.
Abstract: Reaction of five wheat varieties to Bipolaris sorokiniana and Fusarium moniliforme was assessed in
terms of prevalence of the pathogen on the seeds, symptom severity on the
growing plants and effect of the pathogens on the yields. Prevalence of B. sorokiniana was 4-4.25% in kanchan
and Akbar and of Fusarium monilifome
was 2.25-2.75% in Gourab and Kanchan. Disease severity was highest in Barkat
both in laboratory and field conditions. However, Bipolaris sorokiniana infection was more severe than that of Fusarium moniliforme. Percent diseased
grains were high in Barkat, while grain yield was low in Barkat and sonalika
due to inoculation of B. sorokiniana
and F. moniliforme. Thus, there was a
significant variation in reaction among the wheat varieties to the
pathogens.
25. A.K.M.N. Islam, A.J.M.S. Karim, M.A. Rahman, M.M. Begum and K.M. Khalequzzaman. 2002.
Physico-chemical properties of chandra soil series of Madhupur Tract.
Bangladesh Journal of Agricultural Research, 27 (4): 553-560.
Abstract: The Chandra soil series of Madhupur tract was studied for their physical
and chemical properties. The soil series had seven pedogenic horizons of
different depths. Soil porosity varied between 39.8% and 49.4%. higher (1.56g
cc-1) bulk density was found just below the ploughing depth (12-27
cm). The soil pH was 5.4 at the surface (0.08 cm) to 6.4 at the bottom
(110-140+ cm). Organic matter content was found to vary ranging from 2.28% at
the surface to 0.26% at the bottom. Available N content ranged from 0.75% to
2.41 and the available P from 0.012 to 0.033 mg 100 g-1 soil. The
exchangeable levels of K varied from 0.17 to 0.31. Ca from 2.5 to 5.78 and Mg
from 1.22 to 4.30 me 100 g-1 soil.
26. K.M. Khalequzzaman, M.A.
Jinnah, M.A.A.M. Rashid, M.N.A. Chowdhury and Md. Masud Alam. 2002. Effect of Pseudomonas fluorescens in controlling
bacterial wilt of tomato. Pakistan Journal of Plant Pathology, 1 (2–4): 71–73.
Abstract: Two variety of tomato viz. manik and
pusha rubi were used to evaluate the
efficacy of antagonistic P. fluorescens in controlling wilt of
tomato caused by R. solanacearum and
in increasing yield in green house condition. Four treatments, i.e. R. solanacearum (106
c.f.u./ml) was used as control and P.
fluorescens was used as 109
c.f.u./ml, 108 c.f.u./ml and 107 c.f.u./ml suspension.
Manik (V1) showed least bacterial wilt incidence and pusa rubi (V2)
showed highest wilt incidence at 30, 45 and 60 DAI. T1 (P.
fluorescens 109 c.f.u./ml) and combined effect of V1T1
decreased wilt of tomato at all stages and increased fruit yield. T0
(Control-only R. solanacearum 106
c.f.u./ml) and V2T0 increased bacterial wilt at all
stages and decreased fruit yield. So, T1 and V1T1
may be used for controlling bacterial wilt of tomato and increasing yield.
27. M. Mosharraf. Hossain, K.M. Khalequzzaman, M.M. Hossain, M.
Rajab Ali and N. Akter. 2002. Effect of fertilizers
(NPK) application at planting on the incidence of fungi and bacteria of freshly
harvested seeds of three aus rice cultivars. Bangladesh Journal of
Environmental Science, 8: 166-171.
Abstract: The experiment was carried out in the laboratory of the
Department of Plant Pathology, Bangladesh Agricultural University (BAU),
Mymensingh during 1999-2000 with a view to investigate the effects of
fertilizers applied at planting on incidence of seed-borne fungal and bacterial
pathogens associated with seeds of three aus rice cultivars. Cultivars viz.
Niamat, Nizami and Kataktara showed 40.50%, 35.75% and 25.75%
spotted/discoloured seeds, and 59.50%, 64.85% and 74.35% healthy seeds,
respectively. Germination of these cultivars were 88-96% in different treatments.
The incidence of fungi and bacteria was increased with increasing doses of
fertilizers (NPK) in case of all cultivars.
28. Swagatam Talukder,
Md. Shams-Ud-Din, K.M. Khalequzzaman, Md. Masud Alam, Md. Zohurul Islam and S.M.K.E. Khuda. 2003. Prepackaging,
storage losses and physiological changes of fresh cauliflower as influenced by
post harvest treatments. Asian Journal of Plant Sciences, 2 (5): 438–441.
Abstract: Different
post-harvest treatments manifested specific attribute in maintaining physical
appearance, acceptability and economic return for cauliflower. It was observed
that storage in perforated polythene bag prolonged the shelf life and helped
maintaining highest physical appearance, acceptability and economic return of
cauliflower. Considering weight loss and economic return, the wet gunny bag
treatment was also found to be acceptable. Cauliflower showed the best physical
appearance, acceptability, lower weight loss and thereby rendered the highest
economic return with perforated polythene bag treatment at 4 days after storage
(DAS). In this case wet gunny bag was also found to be acceptable considering
as physical appearance, acceptability grade and net economic return.
29. K.M.
Khalequzzaman.
2003. Effect of inocula levels of Meloidogyne
javanica and Sclerotium rolfsii on the growth, yield and galling incidence of
soybean. Pakistan Journal of Plant Pathology, 2 (1): 56–64.
Abstract: The
experiment was conducted both in the laboratory and glasshouse of the
Department of Plant Pathology, Bangladesh Agricultural University (BAU),
Mymensingh during the period of March to July 2001. Mixed inocula of Meloidogyne javanica and Sclerotium rolfsii in five different
treatments including control were tested for the growth, yield, galling
incidence and development of the nematode in soybean. Maximum length of shoot
and root, fresh weight of shoot and root with nodules, number of pods, number
of nodules and yield per plant were observed with the control treatment.
Progressively higher galling incidence and higher number of adult females and
juvenile populations of M. javanica
correspondingly with lower plant growth, nodulation and yield per plant were
recorded from lower to higher levels of inocula ranging from 4–10 eggmasses of M. javanica with 0.025 – 0.2% w/w of S. rolfsii. Galling incidence was negatively correlated with plant
growth, nodulation and yield of soybean.
30. A.Q.M. Bazlur
Rashid, M. Mustafa Hossain, K.M.
Khalequzzaman and G.A. Fakir. 2003. Morphology and architecture of seed
infected with Bipolaris sorokiniana
and its impact on the planting value of wheat. Journal of Progressive Science
and Technology, 1 (1): 7–9.
Abstract: The influence of six different morphological
and architectural category of wheat
seeds var. Kanchan infected with Bipolaris sorokiniana on the planting
value and disease development in plants was studied in vitro. The maximum
prevalences of the pathogen recorded before sowing and after harvesting were
75.80 % and 97.50 %, respectively, in shrivelled seeds. The minimum of 9.75 %
and 14.03 % prevalences respectively were recorded in case of in small healthy
seeds. The large healthy seeds produced the highest seedling vigour of 1981.91;
while the lowest vigour index of 238.13 were found in shrivelled seeds. Large
healthy and small healthy seeds showed higher germination percentage, plant
height, and the shrivelled seeds showed minimum germination percentage and
plant height. Along with the large healthy seeds, the small healthy seeds may
also suggested to be considered in seed certification scheme of Seed processing
Centre (SPC).
31. A.K.M. Kamal Hasan, M.U.
Ahmad, M. Rahaman, K.M. Khalequzzaman
and M.M. Islam. 2003. Effect of inocula level of Meloidogyne javanica and Sclerotium rolfsii on the growth, yield and galling incidence
of groundnut. Pakistan Journal of Biological Sciences, 6 (3): 220–224.
Abstract: Mixed inocula of Meloidogyne javanica and Sclerotium rolfsii in five different
treatments including control were tested for the growth, yield, galling
incidence and development of the nematode in groundnut. Progressively higher
galling incidence and higher number of adult females and juvenile populations
of M. javanica correspondingly with
lower plant growth, nodulation and yield per plant were recorded from lower to
higher levels of inocula ranging from 4-10 egg masses of M. javanica with 0.025 - 0.2% w/w of S. rolfsii . Galling incidence was negatively correlated with plant
growth, nodulation and yield of groundnut.
32. Swagatam Talukder, K.M. Khalequzzaman, S.M.K.E. Khuda, Md.
Masud Alam and Md. Shams-Ud-Din.
2003. Prepackaging, storage losses and physiological changes of fresh brinjal
as influenced by post harvest treatments. Online Journal of Biological Sciences,
3 (5): 474–477.
Abstract: Different
post-harvest treatments manifested specific attribute in maintaining physical
appearance, acceptability and economic return for brinjal. It was observed that
wet gunny bag treatment also resulted in the best physical appearance,
acceptability, reduced weight loss and thereby highest economic return for
brinjal at four days after storage. Considering all the attributes, perforated
polythene bag treatment was also found to be a suggestive treatment for better
storage.
33. Md. Kalim Uddin, K.M. Khalequzzaman, M.A. Rahman, M.M.
Begum and M. Zibon Nessa. 2003.
Integrated nutrient management in mustard (HYV)–boro rice (HYV)–transplanted
aman rice (HYV) cropping system. Pakistan Journal of Biological Sciences, 6 (5):
467–471.
Abstract: Seven
different fertilizer combinations on cropping system basis were studied to
develop a fertilizer package for mustard–boro rice–transplant aman rice
cropping system. Significantly higher grain yield of mustard, boro rice and
transplant aman rice were obtained when
the recommended rate of fertilizer was applied. When P or K was not applied in
boro rice after full NPKS application in the preceding mustard, gave similar
yield to when received its recommended dose but when P or K was not applied for two consecutive boro
(spring rice) and transplant aman rice (monsoon rice) it significantly
reduced the transplant aman rice yield
indicating that P or K had residual effect up to one succeeding crop. On the
other hand , transplant aman need an extra application of both P and K
fertilizer. Sulfur had a residual effect up to two succeeding crops if applied
in full dose along with NPK in the preceding mustard. After application of full
recommended dose of NPKS in the preceding mustard, a reduced (50%) dose of P +
K along with a full N in the succeeding boro and transplant aman rice gave a
similar yield to when recommended NPKS or NPK was used. To maintain soil
fertility and to sustain crop yield this fertilizer practice may be considered
as a good alternative compared to recommended fertilizer dose.
34. K.M. Khalequzzaman, Md. Kalim Uddin, M.S. Hossain, M.S. Islam and
M.H. Rashid. 2003. Yearly incidence and effect of fungicides in controlling
leaf spot of Sapota. Asian Journal of Plant Sciences, 2 (5): 442–444.
Abstract: The study
was laid out to find out the peak disease incidence period of leaf spot of
Sapota (Achras sapota) and to
evaluate the effect of six fungicides in controlling the disease. A total of
five sprays were applied at 15 days intervals during dry season
(November–January). It has been
observed that the peak incidence period of leaf spot disease was higher in
November to January. All fungicides
were found effective significantly in controlling leaf spot disease over
control. Among the fungicides, Bavistin (0.1 %) and Dithane M-45 (0.2 %) were found
better in controlling the disease.
35. Md. Kalim Uddin, K.M. Khalequzzaman, Md. Matiar Rahman, Nur-e-Alam Siddquie and Md. Omar Ali. 2003. Yield and yield
components of winter chilli (Capsicum
annum L.) as affected by different levels of nitrogen and boron. Pakistan
Journal of Biological Sciences, 6 (6): 605–609.
Abstract: The effects of
different levels of nitrogen and boron fertilizer were determined on the yield
and yield components of winter Chilli (Capsicum
annum L), using different levels of
nitrogen viz., 0, 20, 40, 60, 80, 100, 120 and 140 kg ha-1 and three
levels of boron viz., 0, 1.5, 2.5 kg ha-1. The highest chilli yield
(dry) was obtained from 120 kg N ha-1 (2.41 ton ha-1 in
1997-98 and 2.77 ton ha-1 in 1998-99) which differed significantly
from other nitrogen levels. The yield was progressively increased with the
increased levels of nitrogen up to 120 kg N ha-1 and thereafter it
was declined. Among different levels of boron, the highest yield was obtained
from 2.5 kg B ha-1 which was identical to 1.5 kg B ha-1.
Interaction effects between nitrogen and boron on the chilli yield were found
significant. In both the years, the highest chilli yield was recorded from 120
kg N ha-1 when applied with 2.5 kg B ha-1 which was
identical to 120 kg N ha-1 when applied with 1.5 kg B/ha.
36. Md. Zohurul Islam, K.M. Khalequzzaman, G.M.M. Rahman, M.
Tahasinul Islam and Md. Mosharraf Hossain. 2003. Effect of chemicals in
controlling bacterial blight of cotton. Asian Journal of Plant Sciences, 2 (7):
539-543.
Abstract: A field
experiment with 10 treatments was conducted to evaluate the comparative
efficacy of five chemicals viz., Streptomycin sulphate, Thiovit 80 WP, Sulfuric
acid, Dithane M-45 and Cupravit either alone or in combination in controlling
bacterial blight and on yield of cotton.
Germination was highest in T10
i.e. Seed treatment with Streptomycin sulphate (0.15%) and foliar spray with
Cupravit (0.2%) + Streptomycin sulphate (150 ppm) having 86.31 %. The lowest
disease index (21.24%) was found in T10
subsequently after three foliar sprays at 104 DAS. This treatment
reduced the disease intensity and increased the yield of seed cotton with
26.02%. The treatment T9 (Foliar spray with Cupravit + Streptomycin
sulphate) also resulted better performance in reducing disease intensity and
increased yield of seed cotton by 22.81%.
37. K.M. Khalequzzaman, M.K. Uddin, M.A. Rahman, M.A. Rouf and A.K.M.Z. Rahman. 2003. Effect of fungicides in
controlling foot and root rot of French bean by seed treatment. Bangladesh
Journal of Agricultural Sciences, 30 (1): 9–14.
Abstract: The experiment was conducted both in the experimental field and in the
laboratory of RARS, BARI, Hathazari, Chittagong during 1998-1999. The study was
laid out with a view to evaluate the efficacy of different fungicides in
controlling foot and root rot of French bean
(Phaseolus vulgaris) by seed treatment and their effects on yield. The test
variety was BARI bush bean 1. The seed treating fungicides were Cupravit 50 WP
(@ 0.1, 0.2, 0.3 %), Bavistin (@ 0.1, 0.2, 0.3 %), Topsin M 70 WP (@ 0.1, 0.2,
0.3 %) and Vitavax 200 (@ 0.1, 0.2, 0.3 %). Vitavax 200 (0.3 %) and Bavistin
(0.3 %) showed the highest germination (%) both in blotter and in field. The
highest Foot and root rot (plant mortality) reduced by Vitavax 200 (0.3 %) in
the field (63.12 %) and secondly Bavistin (0.3 %) with 60.84 % over untreated
control. The maximum yield (22.15 t/ha) was obtained from Vitavax 200 (0.3 %).
38. M.M. Rahman, K.M. Khalequzzaman, T.K. Dey,
M.A. Rahman and Md. Kalim Uddin. Effect of seed tuber treatment in controlling
late blight of potato. Pakistan Journal of Plant Pathology, 2 (3): 157–160.
Abstract: The
experiment was conducted during 1996-97 and 1997-98 crop season with a view to
determine the effectiveness of two systemic fungicides as seed treatment
against late blight of potato caused by Phytophthora infestans. Potato
seeds were used as whole and cut tuber and fungicides were applied on seed as
dipping and spray. There were 10 treatments, each having three replications.
Among the treatments, T1 (Whole+Ridomil dip.) appeared the best,
which exhibited delaying on disease appearance, reduced foliage blight and
increased yield significantly over control.
39. Mosharraf Hossain,
Shah Md. Munirur Rahman, K.M.
Khalequzzaman, Md. Nazrul Islam and M. Ashrafuzzaman. 2003. Performance of
breeding lines/cultivars of rice against bacterial leaf blight and sheath rot
under field condition. Online Journal of Biological Sciences, 3 (5): 478–483.
Abstract: Twenty nine different
genotypes/advanced breeding lines and four cultivars/checks viz. BR11, BR22,
BR25 and BRRI dhan 38 of rice were selected for the study to examine and screen
out the advanced hybrid lines, which are resistant/tolerant to BLB and sheath
rot. Three accessions (22, 68, 157) showed resistant reaction in T. aman season
and six accession (22, 54, 58, 68, 139, 157) showed highly resistant (HR)
reaction and four entries (37, 62, 75, 128) were resistant to BLB in Boro
season. One accession (58) showed resistant in T. aman season and three (59,
BR11, BRRI dhan 38) were found highly resistant and one accession (54) showed
resistant reaction to sheath rot in Boro season. So, these lines/varieties may
be used as breeding material and cultivated for rice production.
40. M.M. Hoque, K.M. Khalequzzaman,
Md. Abid
Hussain, Md. Alauddin Khan and M.
Ashrafuzzaman. 2003. Management of jute leaf mosaic through vector control and
cultural practices. Asian Journal of Plant Sciences, 2 (11): 826–830.
Abstract: A field study was
conducted to study some cultural treatments to find out an effective method,
alternative to spraying of insecticide, for controlling vector to manage jute
leaf mosaic disease. Five treatments viz. T1 (Malathion 57 E.C), T2
(field sanitation with rouging), T3 (Hanging of polythene strips), T4
(extra dose of nitrogen) and T5 (control) were assigned randomly
having four replications. T2 and T4 showed best
performance on all the parameters including leaf mosaic of jute. However, the
highest yield of raw jute 3091.5 kg/ha and stick 5709.6/ha was obtained from T4
and the second highest 2541.6 kg/ha of raw jute and 5039.1 kg/ha of stick were
obtained in T2. A combination of collection and use of seeds from
healthy plants, one insecticidal spray around 30 days after emergence (DAE),
combined with field sanitation with rouging several times in the growth period
and application of an extra booster dose of nitrogen at around 45 DAE may be
prescribed to farmers of Mymensingh region of Bangladesh.
41. S.N. Mozumder, A.S.M.H.
Rashid, T.K. Paul, M.M.H. Molla and K.M.
Khalequzzaman. 2003. Effects of Zn, S, Mo and B on seed production of cauliflower. Bangladesh
Journal of Seed Science and Technology, 7 (1&2): 155–160.
Abstract: The
effects of fourteen nutrient combinations comprising four levels each of S (0,
12, 24, 36 kg/ha), Zn (0, 2, 4 & 6 kg/ha), Mo (0, 0.05, 1.0 & 1.5
kg/ha) and B (0, 1, 2 & 3 kg/ha) were studied on cauliflower seed
production. There were no remarkable effects of S, Zn and Mo observed in
respect of plant height and thousand seed weight of cauliflower. Application of
incremental rate of S, Zn, Mo and B increased seed yield up to a certain level
then declined. Boron deficiency severely affected on the seed production of
cauliflower. Brown rot disease appeared in absence of B and seed production
reduced severely. The maximum seed yield (5.73q/ha), gross return (Tk. 3436
lakh/ha), net return (Tk. 2791 lakh/ha) and BCR (5.32) were obtained from the
nutrient combination S36Zn4Mo1B2
kg/ha. The calculated optimum and economic nutrient combination from the
polynomial regression equation of the experimental result were S36Zn4.5Mo1.6B2.3
and S30Zn4.4Mo1.3B2.3 kg/ha,
respectively.
42.
Swagatam
Talukder, K.M. Khalequzzaman, S.M.K.E. Khuda, Md. Shariful Islam and M.N.A. Chowdhury. 2003.
Prepackaging, storage losses and physiological changes of fresh tomato as
influenced by post harvest treatments. Pakistan
Journal of Biological Sciences, 6 (14): 1205–1207.
Abstract: Different
post-harvest treatments manifested specific attribute in maintaining physical
appearance, acceptability and economic return for tomato. The physical
appearance and consumer's acceptability score for tomatoes at 6 days after
storage revealed that, perforated polythene and wet gunny bag treatments showed
better physical appearance than all other treatments. The score was the highest
(10) at 0 days of storage and also the highest score 7 at 8 DAS in perforated
polythene bag. The gross economic returns, considering weight loss, physical
appearance and consumer's acceptability at 6 days after storage, tomatoes kept
in perforated polythene bag was found to be the highest. The lowest return was
observed in the polyester bag on the vegetable during storage.
43. M.M.
Islam, G.M. Mujibur Rahman, M.A. Zahid, M.H. Reaza and K.M. Khalequzzaman. 2002. Evaluation of plant extracts for the
control of Alternaria blight of mustard. Bangladesh Journal of
Agricultural Research, 28 (2): 213–216.
Abstract: Antifungal activity of garlic (Allium sativum), neem (Azardirachia
indica), biskatali (Palygonum hydropiper), korolla (Momordica
charantia) and gada (Tagetes erecta) was tested to control Alternaria blight of
mustard. Sprays with the five plant extracts @ 1:10 dilution were highly
effective to reduce the Alternaria blight of mustard and to increase
yield. Garlic bulb extract was found to be the best among all other treatments
which reduced plant infection by 33.7%, leaf infection 32.6%, leaf area disease
19.5%, siliqua infection 43.2%, spots/siliqua 52.1% and increased seed yield by
49.8%.
44.
Md. Moynul Hoque, Md. Mosharraf Hossain, Md.
Rezaul Hoque Khan, K.M. Khalequzzaman
and S.M.R. Karim. 2003. Effect of varieties of rice and weeding on weed growth
and yield of transplant aman rice. Asian Journal of Plant Sciences, 2 (13):
993–998.
Abstract: An experiment was conducted at the Agronomy Field Laboratory, BAU,
Mymensingh during June to December 2000 to assess the effect of varieties of
transplanted aman rice and weeding regimes on weed growth and yield of
transplant aman rice. Five varieties and five weeding were used in the
experiment. The results revealed that BRRI dhan 34 was the most competitive
variety, which provided with the least accumulation of weed dry matter per unit
area. The ranking was BRRI dhan 34 » Binashail > Nizershail >
BRRI dhan 39 » BRRI dhan 33 The ranking of the varieties in respect of grain yield was
BRRI dhan 39 » BRRI dhan 33 > Binashail > BRRI dhan 34 > Nizershail. The
effect of weeding regimes produced significant differences on the weed growth
and grain yield of transplant aman rice. The reduction of weed dry matter was
similar in both two weeding and three weeding regimes. The highest grain yield
was noted under three weeding conditions (3.95 t ha-1) which was at
par with weed free (4.01 t ha-1), but dissimilar to two weeding
regimes (3.71 t ha-1).
45. Md.
Anwarul Haque, K.M. Khalequzzaman, Md. Shariful Islam and
M.M. Hossain. 2003. Survey the
prevalence of market diseases of banana. Pakistan Journal of Plant
Pathology, 2 (3): 169–173.
Abstract:
Market
diseases of banana were surveyed in three markets of Mymensingh town.
Anthracnose and botryodiplodia rots were detected as the main cause of market
rots of banana fruits. About 2.04-4.90% fruits were rotted during
April-September due to anthracnose and 2.96- 4.74% owing to botryodiplodia
rots. Both the diseases clearly correlated positive with temperature. The
causes of anthracnose and botryodiplodia rots were identified as Colletotrichum musae and Botryodiplodia theobromae, respectively.
46. M.M. Islam, M. Ahmed, K.M. Khalequzzaman, M.H. Reza and S.M.
Iqbal. 2004. Effects of the types of storage container and storage period on
the quality of soybean seeds. Bangladesh Journal of Agricultural Sciences, 31
(1): 71–74.
Abstract: The experiment was carried
out in the Laboratory of the Department of Agronomy, Bangladesh Agricultural
University, Mymensingh during the period from May to October, 2001 to study the
effect of types of storage containers and storage period on the quality of
soybean seeds. Treatments composed of four types of storage containers viz.
Glass container, Tin, Plastic container and polythene bag and six storage
periods viz. 30, 60, 90, 120, 150 and 180 days. Treatments were assigned to
Completely Randomized design (CRD). The effect of storage container had
significant effect on all the parameters except vigour index. Polythene bag
showed the highest achievement for the parameters of germination percentage,
shoot and root length, shoot and root dry mass as compared with the other three
containers. Seeds stored in polythene bag had the highest germination (75.06%).
Storage period had also significant effect on all the parameters. Germination,
vigour index, shoot and root length, shoot and root dry mass gave the best
response after 30 days of storage period. With the advancement of storage
period, germination percentage had significantly decreased. The highest
germination (86.65%) was found after 30 days of storage period. Therefore,
storage of soybean seeds, stored in polythene bag for the period of 30 days
appear to be the best for storage.
47. Swagatam Talukder, K.M.
Khalequzzaman, M.N.A. Chowdhury, S.M.K.E. Khuda and Md. Masud Alam. 2004.
Prepackaging, storage losses and physiological changes of fresh bitter gourd as
influenced by post harvest treatments. Journal of Biological Sciences, 4 (5):
613–615.
Abstract: Different
post-harvest treatments manifested specific attribute in maintaining physical
appearance, acceptability and economic return for bitter gourd. The physical
appearance of bitter gourd at 6 days after storage was better in the perforated
polythene bag and wet gunny bag. At the harvesting stage (0 day of storage) the
score was the highest 10 and at 6 DAS the highest score 6 and 7 were recorded
in perforated polythene bag and wet gunny bag, respectively. The gross return
after 4 days after storage was higher in these treatments.
48. A.Q.M.
Bazlur Rashid, R.C. Dhar and K.M. Khalequzzaman. 2004. Association
of Bipolaris sorokiniana in wheat
seed and its effect on subsequent plant infection at different growth stages.
Journal of Agriculture and Rural Development, 2 (1): 67–72.
Abstract: Seed borne B. sorokiniana was found to be highly associated (25.39 %) in black
pointed wheat seeds with the lowest of 17.92 % in the selected healthy looking
ones. Subsequently the minimum foliar infection at seedling, milking and grain
filling stages of plant growth was recorded in the healthy looking seeds while
the black pointed and shrivelled seeds gave rise the minimum apparently healthy
looking grains after harvest. These seeds also yielded the minimum healthy
looking grains and the maximum black pointed and shrivelled grains. Correlation
coefficient revealed that prevalence of B.
sorokiniana was significantly and positively correlated with leaf infection
severity at seedling, milking and grain filling stage of wheat. Spike infection
was significantly and negatively correlated with apparently healthy looking
grains but significantly and positively correlated with black pointed and
shrivelled grains. Selected healthy looking seeds may be advised for wheat seed
production.
49. Mosharraf
Hossain, K.M. Khalequzzaman, M.R.A.
Mollah, Md. Abid Hussain and Md. Abdur Rahim. 2004. Reaction of breeding
lines/cultivars of rice against brown spot and blast under field condition.
Asian Journal of Plant Sciences, 3 (5): 614–617.
Abstract: Twenty
nine different genotypes/advanced breeding lines and four cultivars/checks viz.
BR 11, BR 22, BR 25 and BRRI dhan 38 of rice were selected for the study to
examine and screen out the advanced hybrid lines, which are resistant/tolerant
to brown spot and blast disease. One accession showed resistant (R) reaction in
T. aman season and twenty-nine cultivars showed moderately resistant (MR)
reaction in boro season to brown spot. Thirteen accessions were found as
moderately resistant (MR) in T. aman season and three breeding lines/genotypes
were found to be highly resistant (HR) and five were resistant (R) in boro
season to blast. So, these lines/cultivars may be used as breeding materials
and cultivated for rice production.
50.
M.S. Hossain, M.M. Rahman, K.M. Khalequzzaman and M.B.
Wali. 2004. Effect of seedling ages on the yield and yield attributes of some
boro rice varieties. Progressive Agriculture, 15 (1): 253–258.
Abstract: An experiment was conducted to study the effect of seedling age on the
growth and yield of 4 fine boro rice. The variety BR 16 produced the highest
number of total tillers hill-1, effective tillers hill-1,
total spikelets and filled grains panicle-1, grain yield, straw
yield, biological yield and harvest index. The 45 day old seedlings produced
the highest total tillers hill-1, effective tillers hill-1,
grains panicle-1, grain yield, straw yield and biological yield. BR
16 with 45 day old seedlings gave the highest grain yield (5.6 t ha-1)
51.
M.A.
Haque, M.S. Islam, K.M. Khalequzzaman and M.M. Hossain. 2004. Control
of the Market Diseases of Banana. The Agriculturists, 2 (2): 64-70.
Abstract: The experiment was conducted at the Department of Plant Pathology, BAU, Mymensingh during April
2001-September 2001 to formulate effective control measures against market
diseases of banana. The cause of anthracnose and botryodiplodia rots were
identified as Colletotrichum musae and Botryodiplodia theobromae.
Wounding was prerequisite for successful infections for both the pathogens.
Pre-inoculation spray with Bavistin and Tilt 250 EC at 1000 ppm concentration
suppressed the infections completely. Post-inoculation spray with the same
fungicides was found to be partially effective even at higher concentrations
(1500, 2000 ppm).
52. M.M.
Hossain, K.M. Khalequzzaman, Md. Amzad Hossain, M.R.A. Mollah
and M.A. Siddique. 2004. Influence of planting time on the extension
of picking period of four tomato varieties. Journal of Biological Sciences, 4
(5): 616–619.
Abstract: An experiment was conducted to study
the effect of different planting date and variety on the extension of picking
period of tomato at the Horticulture Farm, BAU, Mymensingh during 2000-2001.
Yield and yield contributing characters were best in October 25 planting. The
highest yield of tomato (86.40 t/ha) was obtained from October 25 planting,
compared to the lowest (16.8 t/ha) from February 24 planting. The variety BARI
Tomato 7 produced the highest yield (57.02 t/ha) and BARI Tomato 5 produced the
lowest yield (51.38 t/ha). All the parameters showed decreasing response with
delay in planting.
53. Md.
Moazzem Hoassain, K.M. Khalequzzaman, G.M.M.
Rahman, A.K.M. Kamal Hasan and M.M. Islam. 2004. Effect of anaerobic
conditions and solar heat treatment on seed-borne fungi of wheat. Bangladesh
Journal of Agricultural Research, 29 (4): 581 – 588.
Abstract: Anaerobic condition created in water and vacuums were used in treating
seeds for 24-216 hrs. Solar heat treatment was also employed. Five different
fungi viz. Bipolaris sorokiniana, Alternaria tenuis, Curvularia lunata,
Fusarium spp. and Aspergillus spp. detected
in wheat seeds were reduced significantly. Treatment of seeds in anaerobic
condition created in water and vacuum for 168-192 hrs gave good result for
controlling all the fungi and germination of seeds remained above the national
standard of 80%. Solar heat treatment was found to be best in the reduction of
fungi associated with wheat seeds. Solar heat treatment of seeds for 12 hrs
gave highest control of all the seed borne fungi. But all the drying periods
(3, 6, 9 and 12 hrs) were significantly different from that of control. Out of
the three bio-physical seed treatment methods, solar heat treatment of seeds
was found to be best in reducing the seed borne fungi associated with wheat
seeds and increasing germination.
54. M.S.
Hossain, K.M. Khalequzzaman, M.
A. Hossain, M. Hossain and M.R.A. Mollah. 2005. Effect of variety and
fungicides in controlling tikka and rust diseases of groundnut. Journal of
Subtropical Agricultural Research and Development, 3 (1): 57–60.
Abstract: The experiment was
conducted at RARS, Ishurdi, Pabna during rabi season (2003-2004) to find out
the effective chemicals and varieties of groundnut against tikka and rust
diseases. The highest score of tikka (4.37) and rust (4.23) diseases, and
lowest yield (2.25 t/ha) were found in Dhaka 1 and the lowest score of the
diseases and highest yield (2.26 t/ha) was found in BARI badam 5. The highest
score of tikka (6.50) was recorded in control and the lowest score (2.81) was
recorded in Folicure (0.1%). The score of rust ranged from 2.00 – 4.91, where
the highest score was recorded in control and the lowest score was recorded in
Folicure. Significantly highest yield (2.51 t/ha) was obtained from Folicure
and the lowest yield (1.89 t/ha) was found in control. The score of tikka
varied from 2.89 to 6.78, while the highest score was recorded in Dhaka 1 x
control and lowest score (2.72) was recorded in BARI badam 5 x Folicure. Dhaka
1 x control had the highest score of rust (6.33) and the lowest score (1.50) of
rust was obtained from BARI badam 5 x Folicure. The yield varied from 1.81 to
2.54 t/ha, where the highest and the lowest yields was obtained from BARI badam
5 x Folicure and BARI badam 5 x control, respectively.
55.
M.R.A. Mollah,
K.M. Khalequzzaman, M.J.Islam and
M.A.H. Khan. 2005. Effect of varieties and boron on yield of chickpea at
Rangpur region of Bangladesh. Bangladesh Journal of Environmental Science, 11
(1): 82-85.
Abstract: The experiment was conducted at Kurigram MLT
site under Rangpur region during 2002-2003 to find out the suitable doses of
boron for yield of chickpea varieties at this region. Two doses of boron
fertilizer viz. 0, 1.0 and 2.0 kg/ha were used on two varieties of chickpea in
the experiment. The tested varieties produced identical yield. Application of
1.0 to 2.0 kg B/ha significantly influenced on the seed yield of chickpea for
both the varieties under test over control. Seed yield ranged from 466 to 1193
kg/ha, while the highest was observed in 2.0 kg of B which was identical to 1.0
kg of B (1181 kg/ha) and the lowest was recorded from control treatment.
Farmers of this region may be advised to use 1.5 kg B/ha for chickpea
production.
56. Md.
Moazzem Hoassain, K.M. Khalequzzaman,
F.M. Aminuzzaman, M.R.A. Mollah and G.M.M. Rahman. 2005. Effect of plant
extracts on the incidence of seed-borne fungi of wheat. Journal of Agriculture
and Rural Development, 3 (1 & 2): 39-43.
Abstract: Different plant parts
of Bishkatali, Vatpata, Garlic, Gagra, Bitter gourd and Neem were tested
against fungi associated with wheat seeds by blotter method. Seeds of wheat
were collected from farmers. Plant extracts viz. Crude extract and alcoholic
extract both in undiluted and diluted form were used for 24 hrs. by seed
dipping. Five different fungi viz. Bipolaris
sorokiniana, Alternaria tenuis, Curvularia lunata, Fusarium spp. and Aspergillus spp. detected in wheat seeds which were reduced significantly by
plant extracts. Seed dipping in alcoholic extract for 24 hours resulted the
highest reduction of seed borne fungi with the increase of seed germination.
Crude extracts were found superior to the diluted extract. Out of 6 plant species,
Neem extract was turned up as superior among the selected extracts followed by
Garlic, Bishkatali and Vatpata.
57. S. N. Mozumder, M.
Moniruzzaman, M. R. Islam, K.M.
Khalequzzaman and S.N. Alam. 2005. Characterization and variability in
hyacinth bean germplasms grown at the hilly areas of Bangladesh. Bangladesh
Journal of Agricultural Research, 30 (3): 355-364.
Abstract: Variability in 41 hyacinth bean (Lablab
niger Medik.) germplasm were assessed at the Agricultural Research Station,
Raikhali, Rangamati in two consecutive cropping seasons from July 2000 to March
2002. The experiment was conducted following a RCB design with three
replications of 3m X 3m plot with flat
bamboo mancha support. Data on flowering and harvest, pod size, fruiting and
disease infestation were taken. A lot of variability was observed among the
germplasm in respect of growth, plant vigour, number and weight of pods per
plant, pod and seed characteristics and pod yield. The size of seeds range from
24.8 to 54.0g per 100 seeds, shape ranged from long to round and colour of
seeds ranged from black to white. The number and weight of pods per plant
ranged from 23.2 to 181.1 and 263 to 230g, respectively. The line CBR0141 flowered
earlier (50 DAP) followed by CRB0140 (66LDAP) but produced comparatively low
yield. Narrower pods were obtained from round poded line CBR0107 (1.34 cm) and
wider pods were obtained from a flat poded line CBR0126 (2.66 cm). The line
CBR0115 produced maximum number pods (187.5) per plant, pod yield per plant (2828g/plant),
longest (15.3 cm) narrow pods and the highest pod yield (12.56t/ha). Anthracnose
disease infestation was minimum (0.0) in CBR0104, CBR0106, CBR01112, CBR0118,
CBR0121 and CBR0132, while it was severe (7.0) in CBR0109, CBR0123 and CBR0139.
58. M.R.A. Mollah, M.R. Khatun, M.J. Islam, M.A. Rahim and K.M.
Khalequzzaman. 2005. Effect of boron fertilization on yield of mustard varieties.
International Journal of Sustainable Agricultural Technology, 1 (4): 77-81.
Abstract: The experiment was conducted at Farmers field of Kurigram MLT site under
Agricultural Research Station, BARI, Rangpur during 2002-2003 to find out the
suitable doses of Boron for yield of mustard varieties. Three doses of boron
fertilizer viz. 0, 1.0 and 2.0 kg/ha were used on five varieties of mustard.
Application of 1.0 to 2.0 kg B/ha significantly influenced on the seed yield of
mustard varieties under the test over control. Dhali x 2.0 kg of Boron produced
the highest seed yield (1610 kg/ha) which was statistically similar to Dhali x
1.0 kg of Boron. So, from the economic point of view, one kg of Boron per
hectare may be recommended for mustard production at Ragnpur region.
59.
A.Q.M.
Bazlur Rashid, Md. Azharul Islam and
K.M. Khalequzzaman. 2005. Study on
variation of Bipolaris sorokiniana
isolates obtained from different categories of wheat seeds. Bangladesh Journal
of Agricultural Research, 30 (4): 537-543.
Abstract: Experiments were
conducted to know the growing habit and the characteristics of Bipolaris sorokiniana associated with
the different categories of wheat seeds and inert matter. The highest frequency
(19.0%) of the pathogen was observed in endosperm region of the non-black
pointed seeds with the minimum (1.0%) in embryonic region. Highest (64.7%) and
lowest (9.96%) prevalence of the pathogen were recorded in lemma and rachis,
respectively. The maximum growth of colony (5.73 mm/day) was obtained in fungus
obtained from black pointed seeds. Significantly highest length (77.3 μ) and breadth (20.1 μ) of conidia was found in black
pointed seeds. The isolate from black pointed seeds were found to develop
significantly the higher disease severity (69.11%) and the lowest (57.5%) was
obtained for isolate from non-black pointed seeds.
60. M.H.
Rashid, M.M. Hossain, N. Ara, K.M.K.
Zaman and M.M. Zaman. 2005. Wild rootstock for controlling bacterial wilt
of tomato and brinjal. Bangladesh Journal of Seed Science and Technology, 9
(1&2): 47-50.
Abstract: The rootstock of Solanum sisymbrifolium, S. torvum and S. integrifolium proved to
be resistant to R. solanacearum. The
graft compatibility of the rootsocks resistant to bacterial wilt with eggplaint
was found better when compared with tomato. The rootstocks (40 days old) for
grafting proved to be the best in relation to graft success, survival ability
and yield of tomato.
61. A. A. M. Syedur Rahman, K.M. Khalequzzaman and G. M. M. Rahman. 2006. Incidence of leaf spot of mustard in
akashmoni-mustard based agroforestry system. Asian Journal of
Plant Science, 5 (2): 193-196.
Abstract: The incidence of leaf spot of mustard (cv. BARI sharisha 13) grown in
different orientations and distances under around twelve years old Akashmoni (Acacia
auriculiformis) tree was studied in the field laboratory of the Department
of Agroforestry, BAU, Mymensingh during 2004-05. The assessment result showed
that the disease incidence was higher near the tree base in every side (1 m
from the tree base) and higher in North side in all distances at different date
of sowing. The lowest disease incidences were found in South orientations 3 m
from the tree base and highest in North 1 m from the tree base. The siliqua
infection significantly influenced on crop yield. The highest seed yield was
observed in South orientation 3 m from the tree base and lowest in North 1 m
from the tree base plot. The distance and orientation showed marked
effect in disease development at different date after sowing. In open field
condition (control) disease incidence also affect on yield and statistically
different from tree-crop combination.
62. M. K. Jamil, M. M. Hossain, S. N. Mozumder, K.M.
Khalequzzaman and A. K. M.
Quamruzzaman. 2006. Growth analysis and yield of garden pea as influenced by variety
and sowing date. International Journal of Sustainable Agricultural Technology,
2 (1): 32-41.
Abstract: An experiment was
conducted at the expeimental farm of the Bangabandhu Sheikh Mujibur Rahman
Agricultural University, Salna, Gazipur during November 2000 to March 2001 with
a view to find out the effect of different variety and sowing date for dry
matter accumulation, crop growth rate, relative contribution to different plant
components in respect of total dry matter (TDM) production, pod and seed yield.
It is appeared that variety and sowing date influence significantly in respect
of LAI, CGR, RGR and NAR. The maximum LAI (3.25) was observed at 70 DAS of BARI
Motorshuti-2 at November 30 sowing, while higher RGR and NAR were found at BARI
Motorshut-2 at November 15 sowing. The highest CGR was observed in BARI
Motorshuti 2 at 15 November sowing. The highest and lowest green pod yield was
obtained from BARI Motorshuti-2 at November 30 sowing and IPSA Motorshuti-1 at
December 15 sowing, respectively. Varieties with high yield potential were associated
with pod size, number of seed per pod and seed weight significantly higher
total dry matter with rapid crop growth rate over time. CGR, RGR, LAI and TDM
production were found to have strong relationship with green pod yield.
63. S.M.A. Shiblee, Md.
Alamgir Hossain, Md. Sayedur Rahman,
K.M. Khalequzzaman and A.S.M.M. Uddin. 2006. Marketing and market study on
pickles at Cox’s bazar. Bangladesh Journal of Agricultural Research, 31 (1):
153-162.
Abstract: The present study was
undertaken to know the status of different pickles of underutilised fruits at
Cox’s bazar and to help formulate marketing strategies for a new product of
pickles in Bangladesh. There were as many as sixteen various sizes or poly
packages of pickles of which five were Burmese pickles imported form Myanmar.
Pickles of ber, tamarind, Indian olive and mango were found at Cox’s bazar
having different tastes, such as sour, sweet and mixed and different forms,
such as dry, wet (oily) and powder. There was a wide variation in the volume of
selling with time. The more were the number of tourists, the more the sale of
pickles. December to March could be termed as the pick period of selling
pickles in which highest sale was in the months of December and January.
Excepting Burmese pickles, the quality and taste of the ‘Deshi’ pickles were
very low. Substandard level of packaging was a great weakness of the pickles
prevailing in the market. No legal obligation was followed in the labelling of
either Burmese pickles or Bangladeshi pickles. Contrasting with other pickles
sold at Cox’s bazar, ‘mishti teller boroi achar’ of Myanmar seemed to be the
best pickle from the standpoint of
highest sale and consumers’ opinion.
64. Sheikh Afsar Uddin, K.M. Khalequzzaman and A.Q.M. Bazlur
Rashid. Effect of relative humidity on the development of head blight by Bipolaris sorokiniana in wheat. Journal
of Agriculture and Rural Development, 4 (1&2): 61-65.
Abstract: Effect of exposure to
different duration of high humidity (5,10,15,20,25 & 30 days) on the
development of head blight caused by Bipolaris
sorokiniana in wheat was studied in vitro. Maximum leaf blight severity of
42.97% and head blight development of 87.53% caused by the pathogen were
recorded for the infected plants incubated for a period of 30 days under
condition of high humidity. The treatments did not differ significantly with
respect to head blight development except the control. Variable effects of the
treatments was observed on the grain quality. The highest diseased (black
pointed and shriveled) grains of 62.27% were recorded in treatment 6 (30 days
exposure) followed by treatment 5 (25 days exposure) with 48.01% diseased
grains. There were no significant differences among the other treatments except
the check.
65. M.M.A. Reza, K.M. Khalequzzaman and A. Q. M. Bazlur
Rashid. 2006. Effect of different levels of seed and plant infection by Bipolaris sorokiniana on wheat.
Bangladesh Journal of Agricultural Research, 31 (2): 241-248.
Abstract: Effect of different
levels of seed and plant infection by Bipolaris
sorokiniana on wheat was determined under induced field condition. The
maximum seed rot/seedling mortality (15.73%) followed by subsequent leaf blight
severity (75.4%) was recorded as a result of sowing 30% infected seeds. While
the minimum of 5% infected seeds resulted respectively 3.1% and 57.53% of the
diseases. As high as 82.68% leaf blight severity was induced through artificial
inoculation while the minimum disease severity (54.97%) was recorded in the
control plots. The diseases were increased with the sowing of increased level
of infected seeds. The regression line for seed rot/seedling mortality and leaf
blight severity showed highly positive correlations with seed infection. There
was also an increasing trend of linear relationship between the leaf blight
severity and subsequent seed infection. While the maximum of 65.36% disease
severity sustained 17.42% association of the pathogen with the seeds.
66. K. M. Khalequzzaman, M. M. Hasan, M. M.
Islam, S. N. Mazumder and G. M. M. Rahman.
2006. Effect of top dressing of N-fertilizer at different stages of
grain development of rice on the incidence of grain spotting and seed-borne
fungi. Bangladesh Journal of Agricultural Research, 31 (3): 411-417.
Abstract: Influence of N
fertilizer application at four grain development stages of rice on the
incidence of spotted grains and prevalence of fungi associated with developing
grains was studied. N-level influenced grain spotting significantly. Lowest
number of spotted grains was obtained from control treatment which was
significantly different from all other treatments where N-fertilizer was added
at different doses. The six different fungi viz. Alternaria tenuis, Curvularia lunata, Drechslera oryzae, Fusarium
spp. Phoma sp. and Pyricularia oryzae were detected at
different grain development stages. The prevalence of seed-borne fungi was
influenced by N-fertilizer. Increased percentage of fungal infections was
recorded with the increased level of N-fertilizer. Seed-borne fungi of rice got
their entry into the seed at flowering stage which were succeeded to the onward
grain development stages.
67. M.R.A. Mollah, M.
Asaduzzaman, K.M. Khalequzzaman, M.N.A.
Siddquie and M. A. Rahim. 2007.
Integrated nutrient management for Boro-T.aman rice cropping pattern in the
level barind tract area (AEZ 25). International Journal of Sustainable Crop
Production, 2 (1): 23-27.
Abstract: The experiment was
conducted at Joypurhat MLT Site, Bogra (AEZ 25) during 2001-03 to find out a
different nutrient management packages for Boro-T.Aman rice cropping pattern.
The experiment was laid out following RCBD with six treatments including one
farmers” practice and one fertilizer control in six dispersed replications. The
other four treatments were soil test based (STB) fertilizer dose for moderate
yield goal (MYG) and high yield goal (HYG). STB based fertilizer dose for HYG
plus cowdung (5 t/ha) and fertilizer dose as per country’s Fertilizer
Recommendation Guide (FGR ‘97). For the average result of three consecutive
years it was indicated that the highest grain yield of Boro (5.487 t/ha) and
T.aman (4.75 t/ha) were obtained from IPNS. The highest average gross margin
was Tk. 33556/ha and MBCR (1.65) in Boro rice over control. The highest gross
margin (Tk. 31276/ha) and MBCR (1.93) of T.aman rice were also obtained from
IPNS over control. So the IPNS was economically and agronomically profitable
dose of fertilizer for the level Baring Tract area (AEZ 25).
68. M.R.A.
Mollah, M. A. Rahim, K.M. Khalequzzaman,
M. A. Akther and M. J. Islam. 2007. Development of fertilizer
recommendation for mustard-boro-T.aman rice cropping pattern under karatoya
bangali flood plain soils. International Journal of Rural Development, 1 (1):
1-5.
Abstract: An experiment was conducted at Gabtali, Bogra (AEZ - 4) for three years
(2001-2003) to determine the optimum fertilizer doses for Mustard-Boro-T.aman
cropping pattern which enhanced total production and profit. Six nutrient
management packages including one farmers’ practice and one control were
tested. The other four treatments were soil test based (STB) fertilizer dose
for moderate yield goals (MYG) and high yield goal (HYG). STB based fertilizer
dose for HYG plus mustard oil cake (400 kg/ha) and fertilizer dose as per
country’s Fertilizer Recommendation Guide (FRG ’97). Three years average
results of HYG gave higher yield performance of crops compared to the other
treatments. The mean yield performance of treatment T2 (HYG) over
three years of mustard, Boro and T. aman were 1.11, 5,59 and 3.39 t/ha,
respectively. The average gross margin (Tk. 17408/ha) and MBCR (3.77) of
mustard was the highest in T2 (HYG). Similarly the highest gross
margin (Tk. 38597/ha) and mean benefit and cost return (MBCR) (2.77) of Boro
rice were observed from T2 (HYG). It was also observed that the
highest gross margin (Tk. 23718/ha) and MBCR of T. aman obtained from T2.
69. M.M.
Rahman, M.A. Ali, T.K. Dey, K.M.
Khalequzzaman and M.R.A. Mollah. 2007. Effect of planting time on incidence
and developments of late blight disease in four varieties of potato. Bangladesh
Journal of Agricultural Research, 32 (1): 81-90.
Abstract: The experiment was conducted
at Tuber Crop Research Sub-centre (TCRC), BARI, Bogra to investigate the effect
of different planting dates on the development of late blight disease in four
potato varieties. Results indicated that the varieties Chamak and Heera were
highly susceptible to late blight disease and Cardinal and Dheera showed less
early infection, but become susceptible to late growth stage. Among the three
planting times, all the varieties exhibited increased late blight symptoms in
the November 15 planting and comparatively less symptoms in the early and late
planting during early observations, but in the late observation all varieties
showed susceptible reaction to the disease irrespective of planting times.
70. M.H.
Rashid, K. M. Khalequzzaman, M.S.
Alam, S.A. Uddin and S.K. Green. 2007. Screening of different sweet pepper
lines against cucumber mosaic virus and chili veinal mottle virus.
International Journal of Sustainable Crop Production, 2 (3): 1-4.
Abstract: The
experiment was carried out at the research farm of HRC, Bangladesh Agricultural
Research Institute, Gazipur during 2000-2001 and 2001 - 2002. In ELISA test the
pepper lines C-4, C-8 and Local check showed positive reaction to CMV and the
line CV-6, CV-8 and Local check showed positive reaction to CVMV during
1999-2000 cropping season. The remaining lines showed negative reaction. But
the line C-4, C-8, C-9 and Local check showed positive reaction to CMV and
CV-5, CV-6, CV-8 and Local check gave the positive reaction to CVMV during
2000-2001 cropping season. So, the sweet pepper lines C-1, C-5, C-7, CV-1 and
CV-22 may be used in breeding program for varietal improvement against the
viruses.
71. S.M.L.
Rahaman, M.O. Kaisar and K. M.
Khalequzzaman. 2007. Studies on physico-morphological characteristics of
different pummelo lines. Bangladesh Journal of Progressive Science and
Technology, 5 (2): 378-380.
Abstract: Physio-morphological
characterises of 10 local pummelo lines were studied at the Citrus Research
Station, BARI, Jaintapur, Sylhet during 2002-03. All the lines differed significantly
in respect to all characters studied. The line CG0038 perfumed the best vegetative
growth. Different shapes ol fruit namely pyriform, spheroid, obloid and ellipsoid
were found in different lines. CG003 produced maximum fruit per plant (55.25).
The line CG0025 produced biggest fruit 1747.34 g with maximum size (17 cm x
15.3 cm), while CG0041 produced smallest fruit (850.72 g). Rind thickness was
found minimum in CG0056 and DA-2. Flesh colour varied from pink to white in
different pummelo lines. Maximum total soluble solids (TSS) percent was recorded
in CG0041 (9.08%) that was followed by VG0045 (8.54%). Pulp bitterness was observed
nil in CG0038 and DA-2 while the test were slight bitter. Juiciness of all the
lines except CG0038 was observed high. Considering quantitative and qualitative
characteristics the lines CG0045, CG0038, CG0041 and CG003 showed superior to
others.
72. M.R.A.
Mollah, M. Asaduzzaman, M.A. Akther and
K. M. Khalequzzaman. 2007. Synchronization of nitrogen application with
growth stages of maize. International Journal of Sustainable Crop Production, 2
(3): 53-55.
Abstract: The
experiment was conducted to verify the effect of nitrogen (N) application at
different growth stages of maize at Multilocation Testing (MLT) site sherpur
under On Farm Research Division, BARI, Bogra during 2005-06. Three urea
application treatments were T1 (1/3 as basal + 1/3 at 8 leaves stage
+ 1/3 at tasseling stage), T2 (30 % as basal + 70% at 8 leaves
stage) and T3 (50% as basal and 50% at 8 leaves stage). Plant
height, no of filled grains/cob, 100 seed weight, grain yield and straw yield
were highest in T2 compared to others. On the other hand, the
highest no of cob was found in T1 and unfilled grain/cob in T3.
There was no significant difference for grain yield among the treatments: But
the comparatively higher grain yield (8.27 t/ha) was obtained from treatment T2.
The present results clearly indicate that in hybrid maize urea should be
applied either 30% or 50% as basal and rest 70% or 50% at 8 leaves stage
instead of 1/3 as basal +1/3 at 8 leaves stage + 1/3 at tasseling stage.
73. M.O.
Kaisar, M. Asaduzzaman, A.K. Choudhury and K.
M. Khalequzzaman. 2007. Development of fertilizer recommendation for
fallow-T. aus-T.aman cropping pattern under surma-kushyara flood plain soil.
Journal of Soil and Nature, 1 (2): 35-38.
Abstract: The
experiment was conducted at Golapgonj, Sylhet under Surma-Kushyara floodplain
soil for three consecutive years (2001-2003) to find out the optimum fertilizer
doses for Fallow-T. aus-T. aman cropping pattern. Six treatments including
balanced inorganic fertilizer doses for moderate (ED1) and high yield goal
(ED2), integrated nutrient management for high yield goal (INM), recommended
fertilizer dose given in Fertilizer Recommendation Guide’97 (FRG’97), farmers’
practice (FP) and absolute control were tested. Fertilizer doses were estimated
as per treatment based on soil test values. The highest grain yield was
obtained from ED2 in both T. aus (5.23 t/ha) and T. aman (5.15 t/ha) crops,
which were closely followed by INM (5.20 and 5.06 t/ha, respectively). Similar
trend was observed in straw yield. Gross margin was highest in ED2 (Tk.
76688.53/ha) followed by INM (Tk. 73797.90/ha). The highest marginal benefit
cost ratio over control was recorded in ED1 (7.34) indicating the most
economically profitable dose.
74. M.R.A.
Mollah, S.M.L. Rahaman, K. M.
Khalequzzaman, M. A. Rahim and M. A. Akther. 2007. Performance of
intercropping groundnut with garlic and onion. International Journal of
Sustainable Crop Production, 2 (5): 31-33.
Abstract: An
experiment was conducted at Multilocation testing (MLT) Site, Gabtali, Bogra
under On Farm Research Division, Bangladesh Agricultural Research Institute,
Agricultural Research Station, Seujgari, Bogra during the Rabi season of
2005-06 and 2006-07 to verify the performance of groundnut + garlic and
groundnut+ onion intercropping in the farmers field. The experimental designed
was used RCB with 3 replication. Average of two years results, two rows of
onion and garlic in between 40 cm apart rows of groundnut produced the higher
groundnut equivalent yields (2.67 and 2.94 t/ha, respectively) with higher
gross margin (Tk. 21381.00 and Tk. 26788.00 per hectare, respectively) . The
lowest groundnut equivalent yield (1.80 t/ha) with lower gross margin
(Tk.12238.00 /ha) were obtained from sole groundnut .Yield of groundnut with
one row of onion and garlic was higher than that of two rows of onion and
garlic.
75. M.A. Hossain, K. M. Khalequzzaman, M.K. Alam, M.R. Islam and
G.M.M. Rahman. 2007. Effect of different distances and orientations on growth
and yield performance of mustard grown as understory crop with akashmoni tree. Journal
of Innovation and Development Strategy. 1 (1): 12-17.
Abstract: The
experiment was conducted at Agroforestry Farm of Bangladesh Agricultural
University, Mymensingh during November 2004-March 2005 to evaluate the effect
of different distances and orientations on growth and yield of mustard under
Akashmoni tree. The highest grain yield was observed in 3 m away from the base
of tree. Compared to open field, the dry seed yield of mustard in different
distances i.e. 3m, 2m and 1m away from the tree base of Akashmoni were 2.13,
1.75 and 1.53 t/ha, respectively. The lowest grain yield was obtained from the
ON - orientation and it was gradually increased in OE, OW, OS and open field
(OO). Orientation also showed the significant effect on plant height, number of
branch plant-1, root weight plant-1, shoot weight plant-1, number of siliqua
plant-1, length of siliqua (cm), number of seeds siliqua-1, fresh yield, dry
yield and 1000 seed weight. Compared to open field, the dry seed yield of
mustard under Akashmoni tree in different orientations i.e. south, west, east
and north were 2.07, 1.59, 1.34 and 0.98 t/ha, respectively. It can be
concluded that near the base of tree obtained lowest yield of mustard due to
shading and nutrient competition and gradually increased 1, 2 and 3 m away from
the base of Akashmoni tree. Although the open field produced maximum yield, but
combined production system may become beneficial for the farmers from sustainable
point of view.
76. A.H.M.M.
Haque, M.A.H. Akon, M.A. Islam, K. M. Khalequzzaman and M. A. Ali. 2007. Study of seed health, germination
and seedling vigour of farmers produced rice seeds. International Journal of
Sustainable Crop Production, 2 (5): 34-39.
Abstract:
The experiment was conducted at Babugonj, Barisal;
MS Laboratory of Plant Pathology Department, Bangladesh Agricultural University
(BAU), Mymensingh and Seed Pathology Centre, BAU, Mymensingh during 2003-04 to
investigate the health, germination and seedling vigor of the farmers produced
rice seeds and to compare the health
and quality of seeds produced by trained and untrained farmers. The rice seed
samples cv. BR 11 were collected from 5 trained and 5 untrained farmers of
Babugonj, Barisal to investigate the seed health and quality. Dry inspection,
physical sorting, blotter test, germination test and seedling vigor tests were
performed. Maximum pure seed (99.01%)
was found in seed samples of trained farmers and minimum (96.19%) in untrained
farmers. Healthy seed (67.7%) were recorded in seed samples of trained farmers
and 48.41% in untrained farmer’s samples. Four fungal genera were associated
with the six month stored rice seed samples. The genera were Aspergillus, Penicillium, Fusarium. and Curvularia. In case of freshly harvested
rice seed, trained farmers samples yielded the lowest count of Fusarium sp. (2.6%), Bipolaris oryzae (2.9%), Curvularia
sp (0.9%), Alternaria padwickii (0.3%),
Nigrospora oryzae (1.6%). Seeds of
trained farmers gave maximum germination (81.5%) and also yielded maximum
number of healthy seedlings (76.6%). The seeds of untrained farmers had very
low germination (62.2%), highest number of diseased (6.8%), abnormal seedlings
(6.75%) and lowest number of normal seedlings (48.6%). Root length, shoot and
root weight of trained farmers seedlings were higher than untrained farmers.
Trained farmers seeds resulted increased in seedling vigor and produced more
healthy seedlings.
77.
K. M. Khalequzzaman and M.
A. Karim. 2007. Study of agricultural mechanization and its impact on rural
environment. Journal of Innovation and Development Strategy. 1 (1): 37-40.
Abstract: The survey
was conducted at author’s own village “Charia Kalibari” in the Hatikumrul Union
Parishad (No. 9) under Ullapara Upazila in Sirajganj District, Bangladesh
during 2006 to know the status of agricultural mechanization and its impact on
rural environment. Most of the farmers (80%) of the village said that fertility
of soil was increased by agricultural mechanization. Farmers of the village
seemed that layer of water was decreasing by deep tube well, as a result less
water was being uptaking by wells and tube wells. Beneficiary earthworm and
insects were destroyed by spraying pesticides. Animal draft power was decreasing
with the increase of power tiller. As a result, cowdung is decreasing day by
day. So, farmers used excessive chemical fertilizers instead of compost, which
create toxicity in soil. Finally they stated that many peoples are being
jobless which creates social problems. Eighty per cent farmers informed lack of
spray machine for pesticides spray and high price of pesticides, and lack of
fuel and high price of fuel for power tiller and power pump. Sixty per cent
respondents claimed that lack of power tiller for tillage operation and lack of
power pump for irrigation. Ninety per cent villagers told about improper supply
of electricity.
78. K. M. Khalequzzaman and
I.Hossain. 2007. Effect of seed treatment with Rhizobium strains and biofertilizers on foot and root rot and yield
of bush bean in Fusarium solani infested soil. Journal of
Agricultural Research, 45 (2): 151-160.
Abstract: A pot
experiment was conducted in the glasshouse of the Department of Plant
Pathology, Bangladesh Agricultural University, Mymensingh, Bangladesh during
2002–2003. Six Rhizobium strains and three biofertilizers were used for
seed treatment. The variety used was BARI Bushbean 1. Rhizobium strains
(BINAR P36 and BINAR P6) and BINA biofertilizer resulted in maximum reduction
of seed rot, foot and root rot (Fusarium solani) of bushbean. In
addition, there was increased germination, plant stand, shoot length, root
length, shoot weight, root weight, vigour index, plant height, number of green
pods, weight of green pods, weight of seeds and healthy looking seeds. Among Rhizobium
strains, BINAR P36 performed better. So, BINAR P36 may be used for reducing
foot and root rot and increasing yield of bushbean.
79. M.N.A.
Chowdhury, M.A. Rahim, K. M.
Khalequzzaman, M.R. Humuan and M.M. Alam. 2007. Effect of plant extracts
and time of application on incidence of anthracnose, yield and quality of
mango. International Journal of Sustainable Crop Production, 2 (5): 59-68.
Abstract: The
experiment was carried out for controlling mango antharcnose and achieving
higher yield and quality of mango cv. Amrapali at the Germplasm Centre of the
Fruit Tree Improvement Project (GPC-FTIP), Department of Horticulture,
Bangladesh Agricultural University, Mymensingh during the period from July 2002
to July 2003. The experiment was conducted to investigate the effect the time
of application and different plant extract on incidence of anthracnose, yield
and quality of mango. The highest (5.30 t/ha) yield was found from thrice
application and the lowest (2.86 t/ha) was found from control. The highest (30)
number of healthy fruits and yield (6.44 t/ha) was found from Dithane M-45 and
the lowest (13) numbers of healthy fruits and yield (2.28 t/ha) were found from
control. The second highest (28) number of healthy fruits and yield (5.59 t/ha)
were found from garlic extract.
80. K. M.
Khalequzzaman and I. Hossain. 2007. Seed treatment with Rhizobium strains and biofertilizers for
controlling foot and root rot (Rhizoctonia
solani) of bush bean. Plant Environment Development, 1(2): 109-113.
Abstract: Rhizobium strains
(BINAR P36 and BINAR P6) and BINA biofertilizer resulted in maximum reduction
of seed rot, and foot and root rot (Rhizoctonia
solani) BARI Bush bean 1 in pot experiment. These treatments also increased
seed germination, plant stand, shoot length/plant, root length/plant, shoot
weight/plant, root weight/plant, vigour index, plant height, number of green
pods/plant, weight of green pods/plant, weight
of seeds/plant and healthy looking seeds. Rhizobium
strains BINAR P36 showed the best performance.
81. K. M.
Khalequzzaman and I. Hossain. 2007. Effect of Rhizobium strains and biofertilizers on the incidence of foot and
root rot (Sclerotium rolfsii) and
yield of Bushbean. Bangladesh Journal of Agriculture, 32(2): 49-53.
Abstract: A glasshouse
experiment was carried out to observe the effect of Rhizobium strains and biofertilizers on the incidence of foot and
root rot caused by Sclerotium rolfsii
and yield of bushbean. Seeds of a susceptible bushbean variety BARI bushbean-1
were treated with six Rhizobium
strains namely BAUR 349, BARU 107, BARIR 301, BARIR 1000, BINAR P6 and BINAR
P36, and three biofertilizers viz. BAU biofertilizer, BARI biofertilizer and
BINA biofertilizer. Treated seeds were sown in S. rolfsii infested soil. Data on incidence of seed rot, foot and
root rot, plant growth, grain yield and yield contributing characters were
recorded. The incidence of seed rot and foot and root rot were 33.79 and
54.00%, respectively under control. Incidence of seed rot was reduced to
9.75-21.00% and that of foot and root rot to 12.54-27-57% due to treatment of
seeds with the materials. The treatments also gave increase in germination,
plant stand, plant growth, grain yield and yield contributing characters. The
most effective material was BINAR P36, which was followed by BINAR P6 and BINA
biofertilizer. Rhizobium strain,
BINAR P36 may be selected for testing under field conditions.
82. M.M.
Rahman, T.K. Dey, M.A. Ali, K. M.
Khalequzzaman and M. A. Hussain. 2008. Control of late blight disease of potato by using new fungicides.
International Journal of Sustainable Crop Production, 3 (2): 10-15.
Abstract: An
investigation was carried at Tuber Crops Research Sub-Centre (TCRSC), Bogra
during 2002 and 2003 crop season to find out suitable fungicide(s) to combat
the late blight disease of potato. Altogether 13 fungicides viz. Amcozeb,
Coromil Mz-72, Dithane M-45, Filthane M-45, Mancozeb, Metaril, Melody Duo,
Oxivit, Ridomil gold, Secure, Unilax, Vitamyl Mz-72 and Zhemetalax were tested
against the disease in two consecutive seasons. All the fungicides
significantly reduced the late blight incidence of potato over control. Among
the fungicides, Filthane M-45, Secure, Melody Duo, Ridomil gold and Metaril are
highly effective to minimize late blight and to increase yield of potato.
83. R.
Podder, S. Dey, M.R. Islam, H. Kohinoor and K. M. Khalequzzaman. 2008.
Availability of delivered services by rural agricultural sector. Journal of
Innovation and Development Strategy, 2(1): 33-38.
Abstract: A survey
was conducted at the North Joypur and Richow belong to North Comilla Upazilla
of Comilla District during 2007 to find out the socio-economic status of the
people and to know the present status of delivery of the services and supplies
the respondents from nation building department at Upazila level. For
collection of primary data, a total number of 30 farmers of different
categories were selected randomly and equally from the two villages. Data were
recorded face to face at the residence of the respondents by using pre-designed
and objective oriented interview schedule or questionnaire. Literacy rate in
both the villages were about 80%. Agriculture was the main occupation of the
villagers with associated of different of farm activities like small cottage,
small-scale business, working in foreign country, government jobs etc. from the
findings it was observed that only nine respondents out of 30 got few trainings
on crop production from DAE and less than 50 percent respondents participated
motivational program like field day, field trip etc. at different season on
block demonstration of different crops whereas 16 respondents out of 30 got
services from Upazila Fisheries office under Department of Fisheries on modern
fish culture.
84. M.N.A.
Chowdhury, M.A. Rahim K. M. Khalequzzaman, M. J. Alam and M.R. Humauan. 2008. Effect of horticultural practices on
incidence of anthracnose on yield and quality of mango. International Journal
of Sustainable Crop Production, 3 (2): 1-9.
Abstract: An
experiment was conducted to investigate the effect of different horticultural
practices for controlling mango antharcnose with achieving higher yield and
quality of mango cv. Amrapali at the Germplasm Centre of the Fruit Tree
Improvement Project (GPC-FTIP), Department of Horticulture, Bangladesh
Agricultural University, Mymensingh during the period from July 2000–July2002.
It was found that application of different horticultural practices effectively
reduced the mango anthracnose. P+W+S produced the highest (47.34) number of
healthy fruits per plant and the lowest (27.17) was obtained from control
plant. The highest (10.26 t/ha) yield was obtained from P+W+S treated plant and
the lowest (4.97 t/ha) was found from control plant. Second year x P+W+S
treated plant resulted the highest (11.04 t/ha) yield and the lowest (5.40
t/ha) was found from 2nd year x control treated plant.
85.
K. M. Khalequzzaman and I.Hossain. 2008. Effect of
seed treatment with Rhizobium strains
and biofertilizers on foot/root rot and yield of bushbean in Fusarium oxysporum infested soil. Journal of
Agricultural Research, 46 (1): 55-64.
Abstract: A pot
experiment was conducted in glasshouse of Department of Plant Pathology,
Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh during 2002-2003.
Effect of Rhizobium strains and biofertilizers on foot/root rot and
yield of bushbean (cv. BARI Bushbean-1). Six Rhizobium strains and three
biofertilizers were used for seed treatment. Rhizobium strains (BINAR
P36 and BINAR P6) and BINA biofertilizer resulted in maximum reduction of seed
rot and foot/root rot (Fusarium oxysporum) of bushbean. These strains
also increased germination, plant stand, shoot length per plant, root length
per plant, shoot weight per plant, root weight per plant, vigour index, plant
height, number of green pods per plant, weight of green pods per plant, weight
of seeds per plant and healthy looking seeds in pot trials. Among them strain
BINAR P36 performed better for green pods per plant (14.59), weight of green
pods per plant (62.95 g), seeds per pod (5.97), weight of seeds per plant
(18.98 g) and healthy looking seeds (94.35 %), which may be used for reducing
foot and root rot and increasing yield of bushbean.
86.
K. M. Khalequzzaman and I. Hossain.
2008. Effect of presowing seed treatment with Rhizobium strains and
biofertilizers for controlling foot and root rot disease of bush bean caused by
Fusarium poae. Bangladesh Journal of Agriculture and Environment, 4 (1):
59-64.
Abstract: An experiment was
conducted in a glasshouse to find out the effect of pre-sowing seed treatment
with six Rhizobium strains and three
biofertilizers on foot and root rot (Fusarium
poae) disease and yield of bushbean (Phaseolus
vulgaris) variety BARI bushbean 1. The treatments caused reduction in incidence
of the disease and increased in plant growth, yield and yield contributing
characters significantly over control. Rhizobium
strains, BINAR P36 and BINAR P6 and BINA biofertilizer gave maximum reduction
of seed rot, foot and root rot, and discoloured seeds and increased
germination, plant stand, shoot and root length/plant, seedling vigour, number
and weight of green pods/plant, yield of seeds/plant. Among the materials Rhizobium strain BINAR P36 showed best
performance. So, it may be selected for testing under field conditions.
87. M.S.
Islam, M.M. Akhter, N.SQ. Rahman, M.B. Banu and
K. M. Khalequzzaman, 2008. Effect of nitrogen and number of seedlings
per hill on the yield and yield components of T. aman rice (BRRI Dhan 33).
International Journal of Sustainable Crop Production, 3 (3): 61-65.
Abstract: The
experiment was conducted at the Agronomy field Laboratory, Department of
Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur
during the period from July to December, 2007 to investigate the effect of
nitrogen (N) and number of seedlings hill-1 on the yield and yield components
of transplant aman rice cv. BRRI dhan 33. Five levels of N (viz. 40, 60, 80,
100 and 120 kg ha-1) and four levels of seedlings hill-1 (viz. 1, 2, 3 and 4
seedlings hill-1) were taken as treament combination. The application of N
fertilizer significantly influenced the plant height, number of tillers,
effective tillers, panicle length, grains panicle-1 and grain yield. The
highest grain yield 4.27 t ha-1 was recorded with the N4 (100 kg N ha-1). Among
four levels of seedlings, three seedlings hill-1 (S3) was the best in respect
of plant height, tillers hill-1, effective tillers hill-1, grains panicle-1 and
grain yield (4.07 t ha-1). The interaction effect of different doses of N and
number of seedlings per hill was significant in all the parameters. The
treatment combination N4S3 produced the highest 1000-grain weight followed by
N1S1 and N5S1 and grain yield (4.90 t ha-1), on the other hand the lowest grain
yield 2.60 t ha-1 was recorded from N1S3.
88. N. Ara, M.K. Bashar, Md. Kalim Uddin and K. M.
Khalequzzaman. 2008. Evaluation of pummelo, Citrus
grandis L cultivars in northern area of Bangladesh. Journal of Agricultural Research, 46 (1): 65-75.
Abstract: Twenty
four cultivars of pummelo (Citrus grandis L.) were studied at the
established pummelo orchard, Regional Agricultural Research Station, BARI,
Ishurdi, Pabna, Bangladesh during the year 2004-2005. Among these cultivars,
Bog-6, Din-29 and Pab-42 were found better in respect of fruit characteristics.
The plants of cultivar Din-29 produced maximum number of fruits per plant
(48.0) followed by Bog-6 (40) and Pab-42 (38). The fruit of cultivar Raj-75 was
the heaviest (1370.0g) whereas cultivar Rang-40 produced the smallest fruit
(608.5g). Maximum total soluble solid (TSS) was recorded in Pab-42 (13.3%)
followed by Din-29 (12.4%), Rang-50 (12.2%), Raj-32 (12.0%), Raj-51 (11.6%),
Bog-6 (11.6%) and Raj-48 (11.1%). The total acid varied from 0.11 to 0.88 percent.
Considering quantitative and qualitative characteristics, Bog-6, Din-29 and
Pab-42 were found better.
89. M.R.A.
Mollah, K. M. Khalequzzaman, M.M. Hossain and S.M.L. Rahman. 2008.
Cropping pattern based fertilizer recommendation for mustard-boro-T. aman rice
cropping pattern under AEZ 25 at Nandigram, Bogra. Journal of Soil and Nature,
2 (2): 31-34.
Abstract: An
experiment was conducted at Nandigram Multilocation Testing (MLT) Site, Bogra
(AEZ-25.) during 2003-04, 2004-2005 and 2005-06 to determine the optimum
fertilizer dose for Mustard –Boro-T.aman rice cropping pattern which enhancing
total production and profit. Six different doses of fertilizer were estimated
from soil test value, BARC Fertilizer Recommendation Guide’ 97 and Farmers
practice. From the average of three years results it was found that the highest
grain yield and gross margin were obtained from (T2) soil test base (STB)
fertilizer dose for high yield goal (HYG) in all crops and it was followed by
IPNS (T3). The lowest grain yield and gross margin from T6 (Absolute control)
in all crops. On the basis of yield and economic return, the soil test base
fertilizer dose may be recommended for Mustard –Boro T. aman rice cropping
pattern in the Level Barind Tract soil (AEZ-25) at Nandigram, Bogra. The
application of organic manure (4-5 t/ha) once in a year could be suggested for
sustaining soil fertility.
90. K. M.
Khalequzzaman and I. Hossain. 2008. Efficacy of Rhizobium
strains and biofertilizers for controlling foot and root rot and increasing green
pod yield of Bush bean. Bangladesh Journal of Agricultural Research, 33(4):
617-622.
Abstract: The experiment was conducted during 2002—03
in the infested plot of the BINA sub-station at Ishurdi, Pabna to evaluate the
effectiveness of Rhizobium strains and biofertilizers in controlling the
foot and root rot disease, and to increase green pod yield of Bush bean under
field condition. The highest germination (91.6%) was recorded with BINAR P36,
which was statistically similar to BAUR 107, BARIR 7029, BARIR 1000, BINAR P6
and BINA biofertilizer. The lowest germination (77.9%) was found in untreated
control. The highest foot and root rot (24.5%) was observed in untreated
control and the lowest (10.00%) was in BINAR P36. Biofertilizers and Rhizobial
strains decreased foot and root rot upto 59.2% over untreated control. The
highest green pod yield (20.8 t/ha) was obtained for using BINAR P36, which was
followed by BARIR 7029, BARIR 892, BARIR 1000, BINAR P6 and BINA biofertilizer.
The lowest green pod yield (13.6 t/ha) was found in untreated control. Rhizobium
strain BINAR P36 may be used as seed treatment for controlling foot and
root rot and increasing green pod yield of Bush bean.
91. A.H.M.M.
Haque, R. Saha, M.M. Alam, K. M.
Khalequzzaman and L. Yasmin. 2008. Study of insect transmission of jute
leaf mosaic virus and management through use of insecticide. International Journal of Sustainable Crop
Production, 3 (6): 64-67.
Abstract: The
experiment was conducted in the field of department of plant pathology, BAU,
Mymensingh during April to September, 2006 to study the insect transmission and
management through use of insecticide and to evaluate the relationship of white
fly population with the spread of jute leaf mosaic virus. It was observed that
the causal agent is readily transmissible through Bemisia tabaci (White
fly) in three capsularis species. The transmission rate depended on cultivars.
Symptom bearing plants of CV. D-154 gave the highest 24% and 35% symptom for
both sprayed and non sprayed plot respectively. In the field experiment it was
revealed that the disease incidence was more in non sprayed plots than sprayed
plots, indicating vector (white fly) transmission as positive. The rate of
increasing disease incidence was higher up to 45 days than later.
92. K. M. Khalequzzaman and I.
Hossain. 2008. Effect of Rhizobium
strains and biofertilizers on foot, root rot and yield of Bush bean in Sclerotinia sclerotiorum infested soil.
Journal of Bio-science, 16: 73-78.
Abstract: A
glasshouse experiment was carried out to find out the effect of Rhizobium strains
and biofertilizers on foot and root rot (Sclerotinia sclerotiorum) and
yield of Bush bean. Six Rhizobium strains and three biofertilizers were
used for seed treatment. Rhizobium strains (BINAR P36 and BINAR P6) and
BINA biofertilizer resulted maximum reduction of seed rot, and foot and root
rot of Bush bean in pot. In addition, these treatments increased germination,
plant stand, shoot length/plant, root length/plant, shoot weight/plant, root
weight/plant, vigour index, plant height, number of green pods/plant, weight of
green pods/plant, weight of seeds/plant and healthy looking seeds in pot
trials. Among them Rhizobium strains (BINAR P36) showed best
performance.
93. K. M. Khalequzzaman. 2008.
Effect of seed treating fungicides and biofertilizers in the incidence of foot
and root rot disease of lentil and chickpea. Annals of Bangladesh Agriculture,
12 (2): 39-44.
Abstract: A field experiment was conducted to test the efficacy of pre-sowing
seed treatment with two fungicides namely Vitavax 200, Bavistin 50 WP and a
biofertilizer (Rhizobium) to control
foot and root rot disease of lentil and chickpea caused by Fusarium spp. and Sclerotium
rolfsii. It was found that inoculation of seeds with Rhizobium at 40g/kg seed, dry seed treatment with Vitavax 200 at
0.25% (w/w), Bavistin at 0.15% (w/w) or dipped in 0.25% suspension of Vitavax
200 and 0.15% suspension of Bavistin 50 WP for 1 and 3 hours gave significant
decrease in foot and root rot incidence and increase in plant stand and grain
yield of the two crops as compared to control. The treatments also caused
appreciable improvement of plant growth over control. In respect of disease
control, the best treatment was dipping seeds in 0.25% suspension of Vitavax 200
for 3 hours, which was followed by dipping for 1 hour, dry seed treatment with
the same fungicide, similar treatments with Bavistin 50 WP. The least effective
treatment was inoculation of seeds with Rhizobium.
The efficacy of the biofertilizer to increase grain yield was at par with the
fungicides. Moreover, it adds nitrogen to the soil. So, inoculation of seeds
may be considered as the best treatment.
94. H.P. Roy, M.A. Salam,
M.R. Islam, K.U. Ahammed. B. Akhter and K. M. Khalequzzaman and A. Hoque. 2009.
Weed infestation and yield performance of boro rice in direct seeding method as
influenced by green growth regulator and herbicides. International Journal of
Sustainable Crop Production, 4 (1): 83-90.
Abstract: An
experiment was carried out at the experimental field of Bangladesh Institute of
Nuclear Agriculture, Mymensingh, during February to May 2005 to investigate the
effect of green growth regulator (GGR-6) and herbicides on weed infestation and
yield performance of boro rice (cv. Iratom-24) in direct seeding method. The
concentration of GGR-6 was 0 (control) and 30 ppm of aqueous solution. The
herbicides were Machete 5G and Ronstar 25 EC at the rate of 25kg ha-1 and 2
litre ha-1 respectively. The green growth regulator and herbicides had positive
effect on weed infestation and yield performance. GGR-6 at 30 ppm and Machete
5G under direct seeding with plant spacing 25cm x 20cm was the best for total
number weeds per m-2, number of effective tillers hill-1, number of filled
grains panicle-1 and 1000-grain weight were non-significant. The highest grain
growth rate was found from direct seeding with plant spacing 25cm x 20cm and
GGR-6 at 30 ppm. Interaction effect on direct seeding method, herbicides and
GGR-6 on grain growth was non-significant. GGR-6 at 30 ppm and Machete 5 G
under direct seeding method with plant spacing 20cm x 20cm possessed better
yield contributing characters resulted in the highest grain yield (5.87 t
ha-1). GGR-6 at 30 ppm and Machete 5G under direct seeding with plant spacing
25cm x 20cm possessed the 2nd highest grain yield (5.41 t ha-1). The
broadcasting of seeds produced the least yield (2.30 t ha-1) in all treatments.
So it may be suggested that for enhancing yield of direct seeding method with
plant spacing 20cm x 20cm, GGR-6 at 30 ppm and Machete 5G at the rate of 25kg
ha-1 would be recommended in rice.
95. N. Ara, M. O.
Kaisar, K. M. Khalequzzaman, Hosna Kohinoor and K. U. Ahamed. 2009. Effect of different dates of planting and
lines on the growth, yield and yield contributing characteristics of
cauliflower. Journal of Soil and Nature, 3(1): 16-19.
Abstract: Planting
dates significantly influenced the growth and yield of cauliflower lines at one
month interval during 1st May to 1st August at the Regional
Agricultural Research Station, Ishurdi, Pabna during 2007‐2008 in summer season
to delineate yield potentialities of cauliflowers. Plant height, number of
leaves per plant, weight of whole plant, weight of marketable curd per plant
and yield t/ha were better in CL0134 lines. Plant height, number of leaves per plant,
weight of whole plant. Weight of marketable curd per plant and yield t/ha were
also significantly differed among the planting dates. Weight of marketable curd
per plant (419.61g) was obtained from 1st August planting in summer season.
Highest curd yield (421.58g) was produced by 1st August planting when coupled
with CL0134 lines. Significantly highest yield (17.56 t/ha) was obtained from
the line CL0134 when combination with 1st August planting.
96. A. Haydar, M. Shalim
Uddin, E.H Khokan, T. Ara, K. M. Khalequzzaman and A. Hoque. 2009.
D2-analysis and selection criteria in potato. International Journal
of Sustainable Crop Production, 4 (1): 91-93.
Abstract: The
experiment was conducted at Botanical Research Garden of Rajshahi University,
Rajshahi during rabi season of November 2006 to March 2007 to ascertain the
nature and magnitude of genetic diversity present in the material which would
ultimately help to identify parents for future breeding program. Genetic
divergence among 30 potato genotypes based on tuber yield and its component
characters were estimated using D2 statistic. Divergence analysis grouped these
genotypes in to five clusters. The inter-cluster distance was higher than
intra-cluster distances suggesting wider genetic diversity among the genotypes
of different groups. The highest intra-cluster value was maximum in cluster II
(1.73) and minimum in cluster IV (0.43). The highest inter-cluster distance was
in between cluster II and IV (√D2=8.123) indicated maximum exploitation of
heterosis on hybridization. Cluster II showed the highest mean values for most
of the characters and clusters III and V showed the maximum mean values for
plant height, number of leaves/plant and tuber yield, while cluster IV revealed
the lowest mean value for all the characters. Three characters e.g. plant
height, number of leaves/plant and fresh weight/plant showed maximum
contribution towards total divergence among different characters. Genotypes
were much in use having the above mentioned characters in cluster II and III
would offer a good scope for the improvement of this crop through hybridization
and rational selection.
97. K. M. Khalequzzaman. 2009.
Effect of sowing times on the incidence of foot and root rot and yield of two
bush bean varieties. Journal of the Patuakhali Science of Technology
University, 1 (1): 87-92.
Abstract: Effect of sowing times (30 October; 10, 20 and 30 November and 10
December) on foot and root rot and yield of Bush bean varieties viz. BARI Bush
bean 1 and BARI Bush bean 2 was studied. Germination, germination failure, foot
and root rot and plant stand were not significantly different between the
varieties. October 30 sowing of BARI bush bean 2 showed highest foot and root
rot incidence (18.27%) and the lowest (9.32%) was observed in BARI bush bean 1
when seeds were sown on December 10. BARI bush bean 1 when sown on November 10
gave the highest yield (17.74 t/ha) but the lowest yield (9.8 t/ha) was obtained
from December 10 sowing of BARI bush bean 2. November 10-20 was found best
sowing time for cultivation of BARI bush bean 1 and 2.
98. A. Haydar, M.A. Islam, T. Ara, E.H. Khokan and K. M. Khalequzzaman. 2009. Studies
on genetic variability, correlation and path analysis in potato.
International Journal of Sustainable Agricultural Technology, 5(5): 40-44.
Abstract: The
genetic parameters, characters association and path coefficient analysis
between yield and yield components of 30 potato genotypes were studied at
A.H.Z. Biotech Ltd., Namo Bhadra, Rajshahi, Bangladesh during the rabi seasons
of three consecutive years of 2003-2006. All the characters showed significant
differences among the genotypes indicating their wide genetic variation. High
estimates of coefficients of variability, heritability and genetic gain for
number of leaves/plant, fresh weight/plant and tuber yield/plant indicated that
these characters were largely controlled by additive gene action and that
straight selection for them would be effective. Tuber yield/plant had a
significant positive correlation with plant height, number of leaves/plant and
fresh weight/plant. But path coefficient analysis describes that fresh
weight/plant, number of leaves/plant, plant height and number of tubers/plant
have high and direct contribution towards tuber yield/plant and could be
considered as selection criteria in potato breeding program. The results
indicate that number of leaves/plant, fresh weight/plant and average tuber
weight/plant had high genotypic coefficient of variability, high genetic
advance as percentage of mean as well as high positive direct effects on tuber
yield/plant.
99. K. M. Khalequzzaman, M. A. Rahim, M. R. A.
Mollah and M. O. Kaisar. 2009. High density planting effect on banana (Musa sapientum) yield. Journal of
Agricultural Research, 47 (4): 359-364.
Abstract: A study was conducted at Utholi,
Shibganj, Bogra, Bangladesh during October, 2004 to November, 2005 to find out
high density plantation effect on banana yield versus recommended spacing. Two
plant spacings viz. 1.5 m x 1.5 m (SP1) and 2m x 2m (SP2)
were tried. Banana fruit characters were higher in SP2. But higher
number of bunches per hectare (3966) was observed in SP1. against SP2
(2269). SP1 gave higher yield due to higher number of plant population than SP2.
Similarly higher gross margin (Tk. 2,54,622.00) and benefit cost ratio (BCR)
(3.95) were observed in SP1 and the lowest gross margin (Tk.
1,58,099.00) and BCR (3.79) in SP2. Farmers of Shibganj should cultivate
banana by using spacing 1.5 m x 1.5 m instead of spacing 2m x 2m due to higher
yield as well as gross margin.
100. T. Ara, A. Haydar, Hyat Mahmud, K. M. Khalequzzaman and M. M. Hossain. 2009. Analysis of the
different parameters for fruit yield and yield contributing characters in
strawberry. International Journal of Sustainable Crop Production, 4(5): 15-18.
Abstract: The
experiment was conducted at Akafuzi Agrotechnologis, Namo Bhadra, Rajshahi,
Bangladesh winter season of 2007 to estimate the genetic parameters and
character association in seven exotic genotypes of strawberry. Highest
genotypic and phenotypic coefficients of variations were observed for number of
stolons/plant followed by number of fruits/plant and number of nodes/stolon.
High heritability coupled with high genetic advance as percentage of mean was
observed for fruit yield, plant height, number of flowers /plant and canopy
size. Plant height, number of leaves /plant, number of stolons/plant, number of
flowers/plant and number of fruits/plant showed highly significant positive
association with fruit yield. Most of the characters exerted negative direct effect
on fruit yield and highest direct effect was for number of nodes/stolon. Keywords: Correlation coefficient, Stolon,
canopy size, path analysis, yield, strawberry
101. A. Haydar, M. K. Alam, E.H Khokan, T. Ara and K. M. Khalequzzaman. 2009. Combining ability and genetic
variability studies in potato. Journal of Soil and Nature, 3(2): 1-3.
Abstract: Seventeen
potato genotypes comprising seven parents and their ten crosses were evaluated
during to November 2005 to March 2006 to study their combining ability and
genetic variability. Mean squares due to GCA and SCA were highly significant
for all the characters except number of branches/plant and dry matter content
for which SCA mean square was non-significant. The mean squares due to GCA were
found to be lower than SCA indicated pre-dominance of non-additive gene action
for all the characters studied. The parents TPS-7, TPS- 364, Hera and Chamak were
found best general combiners for tuber yield and other important characters.
The crosses TPS-7 × TPS-13, TPS-364 × TPS-13, TPS-13 × MF-11, Hera × TPS-19 and
Chamak × TPS-13 were observed to be the most promising hybrid combinations for
yield and other yielding components. High estimates of co-efficient of
variability, heritability and genetic gain for plant height, number of
branches, tubers number and yield indicated that these traits are largely
controlled by additive gene action and that strength selection for them would
be effective.
102. M. M. Rahman, M. A. Ali, T.
K. Dey and K. M. Khalequzzaman. 2009. Screening of potato germplasms against Phytophthora
infestans through artificial inoculation. Bangladesh Journal of
Agricultural Research, 25(1&2): 7-10.
Abstract: The study
was conducted at Tuber Crops Research Centre (TCRC), BARI, Gazipur during
2002–2003 to identify the germplasms against reaction late blight (Phytophthora
infestans) of Potato in vitro. A total of 35 potato germplasms where
including 19 tuber and 16 TPS germplasms were used. Among the tuber, only
98.294 was rated as moderately resistant. Four germplasms viz. Dheera,
Provento, Raja and 93.314 showed moderately susceptible and the rests showed
susceptible reaction to P. infestans. Among TPS germplasms, five
germplasms viz. Atzimba x TS-15, MF-I x TS-15, MF-II x TS-15, LT-8 x TS-15 and
TPS-2 x TS-15 were rated as resistant to late blight.
103. M. A. Rahman, M. F.
Begum, M. F. Alam, Hayat Mahmud and K. M. Khalequzzaman. 2010. Effect of Tricho-compost, compost and NPK fertilizers on growth, yield and
yield components of chili. International Journal of Sustainable Agricultural
Technology, 6 (3): 64-72.
Abstract: To investigate the
effect of Tricho-compost, compost and
NPK on growth, yield and yield components of chili the experiment was conducted
with randomized design at Botanical garden, Rajshahi University, Rajshahi,
Bangladesh during August 2006 to February 2007. There were 15 treatments viz. T1 = Tricho-compost (3 kg/pot) + NPK, T2
= Tricho-compost (2 kg/pot) + NPK, T3
= Tricho-compost (1.5 kg/pot) + NPK,
T4 = Tricho-compost (3 kg/pot), T5 = Tricho-compost
(2 kg/pot), T6 = Tricho-compost (1.5 kg/pot), T7
= compost (3 kg/pot) + NPK, T8 = compost (2 kg/pot) + NPK, T9 = compost (1.5 kg/pot) +
NPK, T10 = compost (3 kg/pot), T11 = compost (2 kg/pot),
T12 = compost (1.5 kg/pot), T13= NPK, T14=
spore suspension of Trichoderma harzianum,
T15= control (only soil). Tricho-compost,
compost and NPK significantly (P=0.05) influenced the growth and yield of
chili. The treatment Tricho-compost
(3 kg/pot) + NPK (T1) produced the highest germination(%), vigour
index, growth and yield of chili. and the lowest yield and yield contributing
parameters were recorded in control (T15).. The correlation matrix
showed that yield of chili had significant and positive correlation with plant
height (r = 0.952**, 0.903**, and 0.935**) and number of leaf per plant (r = 0.952**, 0.913** and 0.868**)
at first harvest time after 30, 60 and
90 days, respectively; number of primary
branch (r = 0.955** and 0.904 **) after 60 and 90 days, respectively; total
number of flower (r = 9.00**) at maximum flower initiation at first harvest
time; total number of fruit ( r = 0.864** and 0.886**), fruit size (r = 0.896**
and 0.906), fresh fruit weight (r = 0.868 and 0.858**), dry fruit weight ( r =
0.924** and 0.933**) and hundred seed weight (r= 0.891** and 0.897**) at first
harvest time. The significant and negative correlation (r= -0.844** and
-0.877**) was observed with the yield and number of days for first flower
initiation at first harvest time, respectively.
The results suggest that inorganic fertilizers (NPK ) with Tricho-compost (3 kg/pot) is suitable for better production of
chili that may increase soil fertility and this integrated
approach could be contributed to improve
crop production.
104. M. M. Alam, M. Z. Hoque, K. M.
Khalequzzaman, M. R. Humauan and R. Akter. 2010. Eco-friendly
management agents of okra yellow vein clearing mosaic virus of okra (Abelmoschus esculentus L. Moench).
Bangladesh Journal of Agriculture, 35(1): 11-16.
Abstract: A study
was undertaken to evaluate efficacy of rouging, growing a trap crop and three
vegetables oils for the management of okra yellow vein clearing mosaic virus
(OYVCMV) of okra under field conditions. Oils were sprayed @ 0.5% mixed with a
washing soap (Trix) @ 0.5%. Marigold was used as the trap crops and planted in
between rows of okra. Admire (Imidacloprid) was applied @ 0.05% as check to
compare the efficacy of other treatments. All the treatments reduced population
of white fly and incidence of OYVCMV disease within the range of 25.03-70.00%,
24.76-60.85%, increased fruit number per plant and yield per hectare by
19.86-61.09% and 24.42-85.28%, respectively over control. Among the treatments
the most effective one was Admire spray on okra followed by neem oil and
mustard oil. Considering adverse effect of Admire on the environment, neem oil
and mustard on may be accepted as alternative to the insecticides to manage
OYVCMV of okra.
105. K. M. Khalequzzaman, M. R.
Humauan, M. R. Khatun and M. J. Uddin. 2010. Effect of Rhizobium inoculation
in controlling foot and root rots of lentil varieties. Journal of Lentil
Research, 4: 58-63
Abstract: The
experiment was conducted at the Regional Agricultural Research Station (RARS),
Ishurdi, Pabna during 2008-09 to find out the effect of Biofertilizers (Rhizobium) against foot and root rot of lentil varieties. Five lentil varieties viz.
BARImasur 1, BARImasur 2, BARImasur 3, BARImasur 4 and BARImasur 5, were planted in main plots and two strains
viz. BARI Biofertilizer Rlc 103 and BARI Biofertilizer Rlc 104, and one control (no inoculum) were the
treatments in each subplot. BARImasur 5 inoculated with BARI Biofertilizer Rlc
104 showed minimum(11.2%) incidence of foot and root rot, leading to maximum
plant survival (88.8%). The highest number of nodules/plant (18.1) was recorded
in BARImasur 5 inoculated with BARI Biofertilizer Rlc 104. Consequently, inoculated
BARImasur 5 gave the highest grain yield (1952.9 kg/ha).
106. M. S. Hossain, K. M. Khalequzzaman, Hayat Mahmud, S.
M. K. Alam and M. W. Zaman. 2010. Comparative effect of municipal wastes and
cow dung on yield and yield attributes of rice in field. International Journal
of Sustainable Agricultural Technology, 6 (9): 1-7.
Abstract: The field experiments
were conducted during 2002 and 2003 at Fuldighi mouza and Sultanganj union of
Bogra sadar upazila under Bogra district of Bangladesh to ascertain the effects
of composted municipal waste (MW) and cowdung (CD) on rice. Two levels of
composted MW and CD (5 and 10 t ha-1) individually or in combination
with two levels of chemical fertilizers (CF=NPKSZn) @ 50 and 75% of the
recommended dose were applied. One control and one 100% CF were also included.
RCBD experimental design was followed with four replications. CD @ 10 t ha-1
in combination with 75% CF performed the maximum grain, straw and TDM (total
dry matter) yields and also influenced the yield contributing characters during
two consecutive years. Municipal waste recorded as identical performer in
respect of grain, straw and TDM yields in the experiments. The highest grain
(5.47 t ha-1) and straw (6.45 t ha-1) yields in 2002
experiment were obtained from CD 10 t ha-1 + 75% CF and MW 10 t ha-1
+ 50% CF, respectively. In 2003, the highest grain (6.81 t ha-1) and
straw (8.24 t ha-1) yields were recorded by the treatment CD 10 t ha-1
+ 75% CF whereas lowest recorded in MW 5 t ha-1 (2.61 t ha-1)
and control (3.20 t ha-1), respectively. Rice yield and yield
attributes significantly increased with the increasing amount of composted
wastes in combination with 50 or 75% recommended rate of CF. The overall
findings suggest that the composted municipal waste combined with 50 or 75% CF
may be an efficient practice for ensuring higher rice yield instead of cowdung
without deteriorating soil fertility.
107. K. M. Khalequzzaman and I.
Hossain. 2010. Effect of seed treatment with biofertilizers on foot and root
rot and seed yield of Bush bean. Bangladesh Journal of Agriculture and
environment, 6 (1): 1-7.
Abstract: The experiment was
conducted during 2002–03 in the infested plot of sub-station, BINA, Ishurdi,
Pabna, Bangladesh to find out the efficacy of Rhizobium strains in controlling the foot and root rot, and seed
yield of Bushbean under field condition. The highest germination (91.64%) was
recorded in BINAR P36, which was statistically similar to BAUR 107, BARIR 7029,
BARIR 1000, BINAR P6 and BINA biofertilizer. The lowest germination (77.89%)
was recorded in untreated control. The highest foot and root rot incidence
(24.51%) was observed in untreated control and the lowest (10.00%) was in BINAR
P36. Rhizobial strains decreased foot and root rot up to 59.20% over untreated control. The highest
seed yield (3.14 t/ha) was found in BINA P36 which was followed by BAUR 975,
BARIR 7029, BARIR 892, BARIR 1000, BINAR P6 and BINA biofertilizer. The lowest
seed yield (1.94 t/ha) was found in untreated control. Rhizobium strains increased seed yield by 61.85% over untreated control. Cost and return analysis showed
that the highest gross return (Tk. 125600.00 ha-1), gross margin
(Tk. 100926.00 ha-1) and BCR (5.09) were obtained from BINAR P36.
Rhizobium strain BINAR P36 may be used as seed treatment for controlling
foot and root rot and increasing seed yield of Bushbean.
108. M. S. Hossain, K. M. Khalequzzaman, S. M. K. Alam,
Hayat Mahmud and M. W. Zaman. 2010. Comparative effects of composted press mud
and cow dung on boro rice. International Journal of Sustainable
Agricultural Technology, 6 (10): 1-7.
Abstract: Field experiments
were conducted in consecutive 2002 and 2003 at a farmer’s field in Bogra
District of Bangldesh to ascertain the effects of composted press mud (PM) and
cowdung (CD) on rice. Two levels PM and CD (5 and 10 t ha-1)
individually or in combination with two levels of chemical fertilizers
(CF=NPKSZn) @ 50 and 75% of the recommended dose were applied. One control and
one 100% CF were also included. RCBD experimental design was followed with four
replications. PM @ 10 t ha-1 in combination with 75% CF performed
either the highest or identical to the maximum grain, straw and TDM (total dry
matter) yields and also influenced the yield contributing characters during two
consecutive years. The highest grain (5.62 t ha-1) and straw (6.96 t
ha-1) yields in 2002 were obtained from PM 10 t ha-1 +
75% CF against control (2.2 and 2.64 t ha-1). In 2003, the highest
grain (6.81 t ha-1) and straw (8.24 t ha-1) yields were
recorded by the treatment CD 10 t ha-1 + 75% CF whereas lowest
recorded in control (2.61 t ha-1,
3.20 t ha-1, respectively). Rice yield and yield attributes
significantly increased with the increasing amount of composted PM in
combination with 50 or 25% reduced recommended rate of CF. The overall findings
suggest that the composted PM combined with 50 or 75% CF can be an efficient
practice for ensuring higher rice yield without deteriorating soil fertility.
109. M. J. Uddin, K. M. Khalequzzaman and Md. Shahin-Uz-Zaman.
2010. Efficacy of fungicides in controlling stemphylium blight of lentil in vitro and in vivo. Journal of Lentil Research, 4: 70-75.
Abstract: The
experiment was conducted at Pulses Research Centre, Ishurdi, Pabna during
October, 2009 to April, 2010 to identify effective fungicides to control radial
mycelial growth of Stemphylium
sarciniformis of lentil. Seven fungicides with a control were used as
treatments. The fungicides were Rovral 50 WP, Indofil M-45, Tilt 250 EC,
Bavistin 50 WP, Score, Companion and Ridomil (0.2%). All fungicides showed better
performance compared to control in laboratory. The lowest (0.00) radial
mycelial growth of Stemphylium
sarciniformis was recorded in Tilt 250 EC (0.05%), Bavistin DF (0.1%) and
Companion (0.2%) at 3, 6, 9 and 12 days after inoculation. Score 250 EC (0.1%)
also showed better performance. In the field experiment, all the fungicides
were affective in the management of stemphylium blight disease of lentil.
Companion induced resistant reaction with the highest yield of 1377 kg/ha
followed by Bavistin with 1208 kg/ha. Ridomil gold was the least effective in
controlling stemphylium blight of lentil whereas Tilt 250 EC showed the
intermediate reaction in checking this disease. Performance of recommended
fungicide (Rovral 50 WP) was not good compared to other fungicides both in the
laboratory and field conditions.
110. M. S. Hossain, K. M. Khalequzzaman, Nadira Parvin, M.
W. Zaman and M. A. Sattar. 2011. Effect of composted municipal wastes, cow dung
and chemical fertilizers on boro rice
in pot. International Journal of Ecotoxicology and Agricultural Technology,
1(2): 49-56.
Abstract: Pot experiments was
conducted during the year 2003 at the net-house of the Department of
Agricultural Chemistry, BAU, Mymensingh to ascertain the effects of composted
municipal waste (MW) and cowdung (CD) on rice. Two levels each of
above-mentioned organic manure (5 and 10 t ha-1) individually or in
combination with two levels of chemical fertilizers (CF=NPKSZn) @ 50 and 75% of
the recommended dose were applied. One control and one 100% CF were also
included. CRD experimental design were followed with four replications. MW @ 10
t ha-1 in combination with 75% CF performed identical to the maximum
grain, straw and TDM (total dry matter) yields and the maximum grain yield
(41.27 g) was observed in 100% CF, the highest straw (49.41 g) and TDM (88.78 g) were produced by CD 5 t ha-1
+ 75% CF. Rice yield and yield attributes significantly increased with the
increasing amount of composted municipal wastes in combination with 50 or 75%
recommended rate of CF. The overall findings suggest that the composted
municipal wastes combined with 50 or 75% CF can be an efficient practice for
ensuring higher rice yield without deteriorating soil fertility.
111. M. M. R. Shah, K. M. Khalequzzaman, M. M.
Rashid, M. A. Hasan and M. S. Islam. 2011. Effect of biotic and abiotic factors on the
seed quality of wheat. International Journal of Ecotoxicology and Agricultural
Technology, 1(2): 41-48.
Abstract: The present
investigation was carried out at the Agronomy Laboratory of Hajee Mohammad
Danesh Science and Technology University, Dinajpur, Bangladesh during April to
July, 2010 to asses the effect of different storage containers, abiotic and
biotic factors on seed quality, Gunny bag resulted the highest moisture content
i.e. 13.00, 13.05, 14.45 and 14.32%, where metallic container resulted the
lowest moisture content i.e.11.73, 11.90, 12.52 and 12.08% at 15, 30, 45 and 60
DAS, respectively. Thousand seed weight in gunny bag stored seed was highest
(49.37, 49.21 and 49.90g), while metallic container showed the lowest (47.13,
47.11 and 47.33g) at 30, 45 and 60 DAS, respectively. Germination percentage was increased up to 30 DAS and then
decreased upto 60 DAS. Gunny bag produced highest percentage of abnormal seedlings
than other containers. During investigation Bipolaris
sp., Aspergillus sp., Fusarium sp. etc. were found on
seed/seedlings. At 45 and 60 DAS fungal infection of gunny bag stored seed was also highest (10.50 and 8.50%) but
dissimilar with metallic container (3.00 and 3.00%). Gunny bag resulted the
highest ungerminate seeds (10.50 and 11.00%) and metallic container resulted
the lowest ungerminate seeds (3.75 and 5.00%) at 30 and 45 DAS. At 60 DAS the
highest ungerminate seed (11.00%) was found from gunny bag stored container
which was statistically similar to metallic container but dissimilar with
plastic bag.
112. M. M. Rashid, I.
Hossain and K. M. Khalequzzaman. 2011. Effect of
weather factors on inoculum density and leaf spot development of Alternaria brassicae in radish seed
crop. Bulletin of the Institutive of Tropical Agriculture, Kyushu University,
34: 43-47.
Abstract: A radish variety named Tasaki Mula was used
to investigate the effect of climatic factors on the development of Alternaria
disease under field conditions. The average data of two crop seasons
(2004/05–2005/06) revealed that 20-day old plants transplanted on 20 December
showed less number of spot and conidia, and their numbers increased with the
age of the plants. The conidia and Spot Ratio was 290:1–593.10:1 from disease
initiation to final assessment in 50-day old plants. Correlation analysis of the
association of the number of conidia landing and number of spot per leaf with
weather factors at different growth stages revealed
that maximum (23.48˚C), minimum (11.14˚C) temperatures and sunshine hours (5.00
h) had significant positive correlation,
while relative humidity (78.28%) and fog hours (4.39 h) had significant
negative correlation with conidia landing and number of spots per leaf in
50-day old transplanted plants. Total rainfall and number of rainy days had no
significant association with conidia landing and number of spot per leaf. Prediction
equations were developed for 4 different observations. The R2 values for the association of weather factors with
number of conidia landing and number of spots per leaf showed variation of
54–93% and 44–81%, respectively, in radish seeds crop infected with Alternaria brassicae. This indicated
that some unknown factors might be involved in the conidia production and
number of spot formation, and some climatic factors played a significant role
in disease development.
113. M. S. Hossain, K. M. Khalequzzaman, M. Jannati Khatun,
M. W. Zaman and M. A. Sattar. 2011. Effect of sewage sludge, cow dung and
chemical fertilizers on yield attributes on boro
rice. International Journal of Ecotoxicology and Agricultural Technology, 1(2):
77-88.
Abstract: Field experiments
were conducted in consecutive two years (2002 and 2003) at a farmer’s field in
Bogra District to ascertain the effects of composted sewage sludge (SS) and
cowdung (CD) on rice. Two levels each of above-mentioned manure (5 and 10 t ha-1)
individually or in combination with two levels of chemical fertilizers
(CF=NPKSZn) @ 50 and 75% of the recommended dose were applied. One control and
one 100% CF were also included. RCBD experimental design was followed with four
replications. Sewage sludge @ 10 t ha-1 in combine action with 75%
CF performed either the highest or identical to the maximum grain, straw and
TDM (total dry matter) yields and also influenced the yield contributing
characters during two consecutive years. The highest grain (5.47 t ha-1)
was obtained from CD 10 t ha-1 + 75% CF and straw (6.60 t ha-1)
from SS 10 t ha-1 + 75% CF during 2002 and lowest in control (2.20
and 2.63 t ha-1). In 2003, the highest grain (6.81 t ha-1)
and straw (8.24 t ha-1) yields were recorded by the treatment CD 10
t ha-1 + 75% CF which was statistically identical with SS 5 or 10 t
ha-1 with 75% CF whereas lowest recorded in control (2.64 t ha-1
and 3.20 t ha-1), respectively. Rice yield and yield attributes
significantly increased with the increasing rate of composted SS or CD in
combination with 50 or 75% recommended rate of CF. SS imparted superior role on
yield and yield attributes. The overall findings suggest that the sewage sludge
combined with 50 or 75% CF can be an efficient practice for ensuring higher
rice yield without deteriorating soil fertility.
114. M. S. Hossain, K. M. Khalequzzaman, N. Parvin, H. Kohinoor
and M. W. Zaman. 2011. Effect of composted sewage sludge and cow dung on boro rice in pot. International Journal
of Ecotoxicology and Agricultural Technology, 1(3): 73-80.
Abstract: Pot
experiments was conducted during 2003 at the net-house of the Department of
Agricultural Chemistry, BAU, Mymensingh to ascertain the effects of composted
sewage sludge (SS) and cowdung (CD) on rice. Two levels sewage sludge and
cowdung (5 and 10 t ha-1) individually or in combination with two
levels of chemical fertilizers (CF=NPKSZn) @ 50 and 75% of the recommended dose
were applied. One control and one 100% CF were also included. CRD experimental
design in pot experiments were followed with four replications. Sewage sludge @
10 t ha-1 in combined with 75% CF performed the highest grain (57.18
g), the highest effective tillers hill-1 (38.33) and TDM (total dry
matter, 124.4 g) production and SS 5 t ha-1 with 75% CF produced the
maximum straw (69.0 g) and also influenced the tallest plant (113.3 cm) during
the year 2003. Rice yield and yield attributes significantly increased with the
increasing amount of composted SS in combination with 50 or 75% recommended
rate of CF. Among the different combined treatments, SS combinations imparted
better role on yield and yield attributes than CD combinations. The overall
findings suggest that the composted SS combined with 50 or 75% CF can be an
efficient practice for ensuring higher rice yield without deteriorating soil
fertility.
115. M. S. Hossain, K. M. Khalequzzaman, M. J. Khatun, M.
W. Zaman and M. S. Islam. 2011. Effect of press mud, cow dung and chemical
fertiliazers on boro rice in pot.
International Journal of Ecotoxicology and Agricultural Technology, 1(3):
81-88.
Abstract: Pot experiment was
conducted during 2003 at the net-house of the Department of Agricultural
Chemistry, BAU, Mymensingh to ascertain the effects of composted press mud (PM)) and cowdung (CD) on rice. Two
levels PM and CD (5 and 10 t ha-1) individually or in combination
with two levels of chemical fertilizers (CF=NPKSZn) @ 50 and 75% of the
recommended dose were applied. One control and one 100% CF were also included.
CRD experimental design was followed with four replications. Press mud @ 10 t
ha-1 in combination with 75% CF performed the highest grain, straw
and TDM (total dry matter) yields and also influenced the yield contributing
characters in pot experiments. PM @ 5 and 10 t ha-1 plus 75% CF
produced the tallest plants (110.3 cm), the highest effective tillers hill-1
(32.33), the highest grain (50.39 g pot-1) and straw (67.75 g pot-1)
yields. Rice yield and yield attributes significantly increased with the
increasing amount of composted PM in combination with 50 or 25% reduced
recommended rate of CF. Among the different treatments PM 10 t ha-1
+ 75% CF imparted superior role on yield and yield attributes. The overall
findings suggest that the composted press mud combined with 50 or 75% CF can be
an efficient practice for ensuring higher rice yield without deteriorating soil
fertility.
116. K. M. Khalequzzaman, M. M. Rashid, M. A. Hasan and M. M. A. Reza. 2012. Effect of storage
containers and storage periods on the seed quality of French bean (Phaseolus vulguris). Bangladesh Journal
of Agricultural Research, 37(2): 195-205..
Abstract: The experiment was conducted in the Laboratory, Department of Plant
Pathology,
HSTU, Dinajpur during April
– July 2010 to know the effect of abiotic and biotic factors, storage
periods and storage containers on the seed quality of French bean. Tin
container showed the highest germination, normal seedlings and vigour index
which were followed by polythene bag, where Gunny bag showed the lowest
germination, normal seedlings and vigour index upto 60 days after storage. The
highest 1000 seed weight, moisture content, abnormal seedlings, seed rot and
incidence of the Fusarium oxysporum were
recorded in Gunny bag, where the lowest of these parameters were recorded in
Tin container. Seed colour of Tin container were more or less same as initial
colour, but seeds of Gunny bag were changed into fade or brown colour at 60
days after storage. Moisture content, 1000 seed weight, abnormal seedlings,
seed rot, fungi association were increased, but germination and normal
seedlings were decreased with the increase of storage periods. Among the three
containers, Tin container was the best and the Gunny bag was the worst storage
containers upto 60 days of storage for French bean seed.
117.
M.
O. Kaisar, K. M. Khalequzzaman, M.
R. Islam, N. Ara and M. F. Hossain. 2012. Effect of storage containers and
storage periods on the seed quality of sweet gourd. Journal of the Bangladesh
Society for Agricultural Science and Technology, 9(1 & 2): 155-160.
Abstract: An experiment was
conducted at the Seed Pathology Centre, Bangladesh Agricultural University,
Mymensingh during the period from January 13 to March 16, 2010 to evaluate the
effect of storage containers and storage periods on quality of stored sweet
gourd seed. Sweet gourd seeds were stored in tin container, polythene bag and
gunny bag for 30 and 60 days. Tin container showed the highest germination,
normal seedlings and vigour index which were followed by polythene bag, where
gunny bag showed the lowest in the parameters up to 60 days after storage. The
highest 100 seed weight, moisture content, dead seed, abnormal seedlings and
incidence of different fungi were recorded in gunny bag, where these were the
lowest in tin container. Seed colour of tin container was more or less same as
initial colour, but seeds of gunny bag were changed into fade or brown colour
with a musty odour at 60 days after storage. No insect was found to any storage
container for whole storage periods. Moisture content, 100 seed weight, dead
seed, abnormal seedlings and fungi association were increased, but germination,
normal seedlings and seed vigour index were decreased with the increase of
storage periods. Among the three containers, tin container was the best and the
gunny bag was the worst storage containers up to 60 days of storage for sweet
gourd seed.
118.
M.
R. Humauan, K. M. Khalequzzaman, B. Akhter, M. J. Alam and M. R. Islam.
2012. Role of biocontrol agent for the management of foot and root rot disease
of cauliflower. Bulletin of the Institute of Tropical Agriculture, Kyushu
University, 35:41-45.
Abstract: The experiment
was conducted at Regional Agricultural Research Station, Ishurdi, Pabna in
Bangladesh during 2009-10 to find out the effect of bio control agent against
foot and root rot of cauliflower. Five different forms of two biocontrol agents
were tested for their performance against the causal pathogen. All the bio
control agents showed significantly better performance over control. The lowest
foot and root rot incidence (6.25%) was recorded in soil amendment with Trichoderma
harzianum compost (1.0 t/ha) treated plots and the highest (18.75%) was
recorded in control. The yield ranged from 17.91 to 23.05 t/ha, the highest and
lowest yields were recorded in soil amendment with Trichoderma harzianum compost
(1.0 t/ha) and untreated control, respectively.
119.
K. M. Khalequzzamain and I.
Hossain. 2012. Study on growth habit, conidial and sclerotial characters of
foot and root rot causal pathogens of pulses in Bangladesh. Bulletin of the
Institute of Tropical Agriculture, Kyushu University, 35:77-83.
Abstract: The experiment
was conducted in the Laboratory, Department of Plant Pathology, Bangladesh
Agricultural University (BAU), Mymensingh, Bangladesh during the period of
200-2003 to investigate the growth habit, conidial and sclerotial characters of
foot and root rot pathogenic fungi of pulses. Among all the isolates of Fusarium
species, the radial mycelial growth ranged from 34.7-72.5 mm and 66.3-90.0 mm
at 7 and 15 days after inoculation (DAI), respectively. Colony colours of Fusarium isolates were pinkish white, creamy
white and cottony white. The colony shape of Fusarium species were regular and its compactness were fluffy,
medium fluffy and compact. Length and breadth of macro-conidia of Fusarium species varied from 10.56 to
36.75 µm and from 3.76 to 6.17 µm at 7 DAI, respectively. In case of 15 days
after inoculation, length and breadth of macro-conidia varied from 12.88 to
36.61 µm and from 3.62 to 6.69 µm, respectively. Total number of conidia of Fusarium isolates ranged from 60874.26
to 494480.55 and from 57532.47 to 439279.24 per cm2 at 7 and 15 DAI,
respectively. The radial mycelial growth of Sclerotium rolfsii ranged
from 75.9 to 88.8 mm at 7 DAI and colony colour was off white to creamy white.
The colony shape was regular and compactness was fluffy to medium fluffy.
Colour of sclerotia was brownish and brown, and shape was round. The radial
mycelial growth of Sclerotinia sclerotiorum isolates ranged from 37.3 to
50.7 mm and from 58.8 to 62.2 mm at 7 and 15 DAI, respectively. Colony colour
of all isolates was whitish. The colony shape and compactness were regular and
compact, respectively. Sclerotinia sclerotiorum initiated sclerotia at 6
DAI. Colour of sclerotia was whitish to dark brown and its shape was rough
round. The radial mycelial growth of Rhizoctonia
solani ranged from 75.0 to 85.0 mm at 7 DAI and colony colour was light
creamy and creamy. The colony shape was regular and its compactness was fluffy
to medium. Rhizoctonia solani
initiated after 6 days of inoculation. Colour of sclerotia was brown and deep
brown, and shape of sclerotia was irregular.
120.
S. S. Siddique, F. Khatun, K. M. Khalequzzaman, R. Momotaz and M. R. Uddin. 2013. Integrated disease
management of wilt in chickpea by organic amendment. International Journal of
Sustainable Crop Production, 8(1): 5-10
Abstract: The experiment was conducted against wilt of chickpea at RARS, Jessore
during Rabi season of 2009-10 and 2010-11 to reduce the use of
chemical fungicide to against wilt disease and increase yield of chickpea. Pre-sowing soil treatment with Poultry
litter (5 t/ha) with proper seed treatment by Provax (2 gm/kg seed) reduced
wilt incidence with 34.36% in 2009-10 and 56.81% in 2010-11. Neem oil cake (100
kg/ha) in combination with Provax also decreased wilt incidence over control. Germination
was highest in Provax treated plot in both the year (97.18% in 2009-10 &
96.11% in 2010-11), where Poultry litter + Provax integrated treatment also
performed good in case of germination (94.62% in 2009-10 and 95.20% in
2010-11). Yield increased over control was also highest in Poultry litter +
Provax combined plot (65.09% in 2009-10 and 77.15% in 2010-11). Among the two
biocontrol agents, the performance of Trichoderma harzianum was
better than Trichoderma viridi.
121. M. O. Kaisar, N. Ara, M.
A. Sadat and K. M. Khalequzzaman. 2013. Growth
and yield of papaya subjected to nutrient deprivation. International
Journal of Sustainable Crop Production, 8(1): 25-27.
Abstract: In order to evaluate
nutritional requirements and the effect of nutrient deprivation on the growth
and yield of papaya, an experiment was conducted at the Regional Agricultural
Research Station, Ishurdi, Pabna during the growing season of 2008. The
experiment included one complete treatment (provided N, P, K, S, Mg, B, Mo and
Zn), besides deprivation of each nutrient (-N, -P, -K, -S, -Mg, -B, -Mo and
-Zn), and one absolute control treatment (natural soil). Papaya has high
nutritional requirements, and nutrients N, P, K, S, B and Mo, in that order,
growth B, N, P, Mo, S and K are essential to obtain higher yield in papaya.
122. M. H. Rashid, K. M. Khalequzzaman, M. A. Kashem, M.
J. Alam, M. S. Islam, M. Y. Rafii and M. A. Latif. 2013. Yield loss assessment of chickpea caused by
botrytis gray mold through fungicide (Bavistin) spray. Life
Science Journal,10(4): 3001-3004.
Abstract: An experiment
was conducted to assess the yield loss of chickpea caused by Botrytis gray mold
(BGM) through fungicide spray at Pulses Research Centre, Bangladesh
Agricultural Research Institute, Ishurdi, Pabna, Bangladesh. Sixteen entries
were evaluated following RCB design with three replications. Out of 16 tested
germplasms, eight germplasms (92040*52, FLIP97-530 CLIMS, 94-012*98V4006,
FLIP98-106C, Gully, FLIP94-509C, 97020-1489 and S95425) showed resistant reaction,
while eight and one entries showed susceptible and highly susceptible,
respectably, in fungicide sprayed plot. The highest yield increase over BGM
inoculated plot were observed in BARWON*98CIH4007 (180.49%) and 97020-1489
(157.96%). The lowest yield increase over BGM inoculated plot were recorded in
HEERA*98CZH4010 (6.39%) and 94-012*98V4006 (8.93%) genotypes.
123. M. M. Hossain, K. M. Khalequzzaman, M. A.
Wadud, M. B. Sarker and R N. Ahmed. 2014. Evaluation of garlic genotypes against
thrips. International Journal of Experimental Agriculture. 4(4):1-4.
Abstract: The field experiment was conducted at SRC,
Bogra during Rabi season of 2013-14 to test the performance of garlic genotypes
against thrips. Fifteen
different garlic genotypes (GC001, GC005, GC0012, GC0013, GC0017, GC0018,
GC0024, GC0027, GC0028, GC0029, GC0030, GC0031, GC0034, GC0035 and GC0036)
along with BARI Garlic 1 and 2 were evaluated against thrips. Out of fifteen
genotypes, GCO34 recording less than 8.29 thrips per plant and higher bulb
yield (9.78 t/ha) was characterized as highly resistant. Genotypes GC0013,
GC0028 and GC0030 recorded higher thrips population of more than 13.41 thrips
per plant and lower bulb yield (4.07, 4.52 and 2.68 t/ha, respectively) were
grouped into highly susceptible.
124. M. M. Hossain, K. M.
Khalequzzaman, A. H. F. Fahim, R. N. Ahmed and M. S. Islam. 2014. Integrated management
of thrips to enhance seed yield of onion. International Journal of Experimental Agriculture, 4(3): 30-33.
Abstract: The field experiment was conducted at SRC, Bogra
during Rrabi season of 2013-14 to evaluate the efficacy of bio-rational and synthetic insecticides against thrips
infestation to
enhance seed yield of onion. The
treatments were T1=
White sticky trap @ 40 trap/ha; T2=
Biopesticide-Bioneem (Azadiractin 3EC) @ 2ml/litre of water; T3= Biopesticide-Bioneem
(Azadiractin 3EC) @ 2ml/litre of water + White sticky trap @ 40 trap/ha; T4= Thiamethoxam (Actara 25WG) @
0.2g/litre of water + White sticky trap@ 40 trap/ha; T5= Alternate spraying of
Biopesticide- Spinosad (Tracer 45SC) @ 0.4ml/litre of water and Bioneem
(Azadiractin 3EC) @ 2ml/litre of water and T6= Untreated control. Alternate spraying of Biopesticide-
Spinosad (Tracer 45SC) @ 0.4ml/litre of water and Bioneem (Azadiractin 3EC) @
2ml/litre of water offered the lowest thrips population (1.92 thrips/ plant and
2.65 thrips /umbel). The highest percentage of thrips population (86.37% in
plant and 73.76% in umbel) reduction over control was also obtained from
alternate spraying of Biopesticide- Spinosad and Bioneem (Azadiractin 3EC)
treated plot followed by Bioneem (Azadiractin 3EC) + White sticky trap treated
plot (73.88% and 57.82%). The highest onion seed yield (383.3 kg/ha)
and marginal benefit cost ratio (9.55) was also obtained from alternate
spraying of Biopesticide- Spinosad and Bioneem (Azadiractin 3EC) treated plot.
So, alternate spraying of Biopesticide-Spinosad and Bioneem
(Azadiractin 3EC) may be recommended for effective management of thrips in seed
onion production.
125. M. M. Hossain, K. M.
Khalequzzaman, M. S. Alam, M. M. Hossain and M. T. R. Mondal.
2014. Development of bio-rational based IPM packages against thrips in garlic. International
Journal of Sustainable Crop Production, 9(3):10-14.
Abstract: The field experiment was conducted at SRC, Bogra
during Rabi season of 2013-14 to evaluate the effectiveness of several
bio-rational based IPM packages against thrips in garlic. The treatments were five bio-rational based IPM packages and one untreated control.
Spraying of Spinosad (Tracer 45SC) @ 0.4ml/litre of water + White sticky trap @
40traps/ha resulted the lowest thrips population (3.20, 3.11, 3.74 thrips/plant
after 1st, 2nd and 3rd treatment application
respectively) with highest marginal benefit cost ratio (19.94). The highest
percentage of thrips population (82.60) reduction (after 3rd
treatment application) over control and the highest garlic bulb yield (8.77
t/ha) was also obtained from Spinosad (Tracer 45SC) + White sticky trap treated
plot. So, installation of sticky white trap along with spraying of
Spinosad (Tracer 45SC) may be recommended for effective management of thrips in
garlic.
126. K. M. Khalequzzaman, M. N. A. Siddquie, M. J.
Khatun, M.vA. Hussain, R. N. Ahmed. 2014. Studies on Maize–Okra–T. aman cropping pattern at Sherpur, Bogra,
Bangladesh. International Journal of Experimental Agriculture, 4(2):12-16.
Abstract: The experiment was
conducted to test the adaptability of three alternate cropping patterns viz.
i) Maize-Okra-T. Aman, ii) Maize-Sesame-T. Aman and iii) Maize-Khira-T. Aman
instead of existing cropping pattern (Maize-Fallow-T. Aman) at Sherpur, Bogra,
Bangladesh under the supervision of OFRD, Bogra during 2003-04 and funded by
NCDP. Maize-Okra-T. Aman cropping pattern showed better performance and
Maize-Sesame-T. Aman cropping pattern showed moderate performance in case of
all agronomical and economical parameters. Though Maize-Okra-T. Aman cropping
pattern showed better performance but farmers did not show interest to grow
Okra for some unreasonable problems. So, Maize-Sesame-T. Aman cropping pattern
may be recommended for Sherpur, Bogra, Bangladesh along with Maize-Okra-T. Aman
cropping pattern instead of Maize-Fallow-T. Aman cropping pattern (local
practice).
127. M. M. Hossain, K. M. Khalequzzaman, M. J.
Khatun, M. M. Hossain and M. S. Alam. 2014. Effect of different transplanting dates
for the management of thrips in onion. International Journal of Experimental Agriculture, 4(4):9-13.
Abstract: The field experiment was conducted at SRC, Bogra
during Rabi season of 2013-14 to assess the effect of varying transplanting
dates on thrips populations and onion bulb yield. The treatments were T1= 20 November
(1st transplanting); T2= 05 December (2nd
transplanting); T3= 20 December (3rd transplanting); T4=
05 January (4th transplanting) and T5= 20 January (5th
transplanting). Transplanting was done at 15 days interval from November to
January.
Results showed that early
transplanting in 20 November and 5 December had fewer thrips (7.81 thrips/plant and 10.76 thrips/plant) than the subsequent ones. November transplant
was free of thrips up to 9 weeks after transplanting (WAT), December
transplanting up to 8 WAT and January transplanting up to 4 WAT. Onion bulb
yields were also found to differ in descending order as follows: 20 November
(21.85 t/ha)> 05 December (18.98 t/ha)> 20 December (18.50 t/ha)> 05
January (7.26 t/ha)> 20 January (5.28 t/ha).
128. K.
M. Khalequzzaman. 2015. Management of anthracnose of hyacinth bean for
safe fresh food production. Asian
Journal of Applied Science and Engineering, 4: 102-109.
Abstract: The
experiment was conducted with two sets at ARS, BARI, Pabna during 2008-09 to
find out the effective control measure for anthracnose disease of country bean
for producing safe fresh food without harmful chemicals. For experiment set 1
(fungal inoculum was sprayed before treatments apply), control treatment showed
the highest leaf area diseased (27.67%) and Tilt 250 EC, Bordeaux mixture,
Baking powder and Trichoderma harzianum sprayed plot showed lower leaf
area diseased. Percent infected fruits varied from 12.23 - 25.56%, while the
highest was in control and the lowest was in Tilt 250 EC sprayed plot. Control
plot showed the highest fruit area diseased (3.20%) and Tilt 250 EC sprayed
plot showed the lowest (1.33%) which followed by Bordeaux mixture (1.67%),
Baking powder (1.97%) and Trichoderma harzianum (2.00%) sprayed plot.
Tilt 250 EC sprayed plot resulted the maximum yield (9.17 t/ha). Bordeaux
mixture (7.37 t/ha), Baking powder (6.25 t/ha) and Trichoderma harzianum (6.08
t/ha) sprayed plot also gave higher yield, and the lowest yield (4.00 t/ha)
resulted control plot. Both the experiments gave similar trends of results.
129. M. M.
Hossain, K. M. Khalequzzaman, M. A.
A. Mamun, M. J. Alam and R. N. Ahmed. 2015. Population dynamics and management of thrips in bulb onion using
vegetable intercrops. International
Journal of Sustainable Crop Production, 10(3):8-15.
Abstract: The field
experiment was conducted at Spices Research Centre, Shibganj, Bogra during Rabi
season of 2014-15 to study the population dynamics and to evaluate the
effectiveness of intercropping Carrot, Tomato and French bean with onion for
the management of thrips attacking onion. Variety BARI Piaz-1 was intercropped with
each of the vegetables and insecticide Imidacloprid was used as a standard
check. The treatments were five including control. Infestation of onion thrips
was started from the first week of February and it become gradually increases
upto first week of April then it was declined. Thrips populations were
positively correlated with temperature and negatively with relative humidity
and rainfall. Thrips incidence and damage severity were determined at 7 days
interval with damage severity being estimated on a scale of 1-5. Total and
marketable bulb yield were determined at physiological maturity. Intercropping
onion with carrot, tomato and insecticide Imidacloprid significantly reduced
thrips population over control up to 52.42, 48.84 and 58.97%, respectively, but
French bean had no significant effect. The three vegetable intercrops
significantly reduced damage severity, with insecticide Imidacloprid showed the
greatest damage reduction up to 23.81% followed by carrot (21.04%) and tomato
(11.90%). Intercropping onion with tomato and carrot showed significantly lower
onion bulb yield (6.6 t/ha and 7.54 t/ha, respectively) but statistically
comparable to that of French bean (8.62 t/ha). The effect of Imidacloprid on
yield (11.24 t/ha) was statistically higher. The reduction in bulb yield was
compensated by the yield from the vegetable intercrops and, therefore, no loss
was incurred in carrot and tomato showing higher MBCR (12.55 and 17.90,
respectively) compared to Imidacloprid (5.52). This study showed that Carrot or
Tomato intercrop may be utilized as intercrop for the management of onion
thrips.
130. K. M. Khalequzzaman.
2015. Screening of BARI Rhizobium Biofertilizers against
Foot and Root Rot of Chickpea. ABC
Journal of Advanced Research, 4(2): 97-104.
Abstract: The experiment was conducted at the sick plot, Pulses Research Centre,
Ishurdi, Pabna, Bangladesh during two consecutive years of 2010-11 and 2011-12
to screen out the effective BARI Rhizobium Biofertilizers against foot and root
rot of chickpea. Six BARI Rhizobium strains viz. BARI Rca 201, BARI Rca 220,
BARI Rca 202, BARI chickpea Rajshahi, BARI Rca IC 59 and BARI Chickpea pulse 1
were used as treatments. In 2010-11, foot and root rot incidence ranged from
9.78-26.63%, while the lowest incidence was recorded in BARI Chickpea Rajshahi,
but the highest incidence was recorded in untreated control. BARI Chickpea
Rajshahi gave the highest plant survival (90.22%) and control treatment gave
the lowest plant survival (72.55%). BARI Chickpea Rajshahi treated plots
reduced maximum foot and root rot incidence (63.27%) over untreated control.
Similar trends of the results were observed in 2011-12. The highest yield was
obtained from BARI Chickpea Rajshahi with 2090 and 2040 kg/ha during 2010-11
and 2011-12, respectively, and the lowest yield was obtained from untreated
control for both the years.
131. K. M.
Khalequzzaman. 2015. Seed
treatment with Rhizobium
biofertilizer for controlling foot and root rot of chickpea. International
Journal of Scientific Research in Agricultural Sciences, 2(6): 144-150.
Abstract: Chickpea
is the third major pulse crops of Bangladesh in respect of acreage and
production. Chickpeas are rich in protein, complex carbohydrates, and fibre,
while low in fat and cholesterol. Average yield of chickpea is also low due to
various diseases. Among the diseases, foot and root rot of chickpea is the most
serious disease in Bangladesh. The pathogenic fungi are soil-borne in nature;
hence, seed treatment with Biofertilizer is beneficial in controlling the
disease. The experiment was conducted in the sick plot at Pulses Research
Centre, BARI, Ishurdi, Pabna, Bangladesh during 2008-09 to find out the effect
of Rhizobium Biofertilizer against foot and root rot of Chickpea
varieties. The chickpea varieties were BARIchola 1, BARIchola 2, BARIchola 3,
BARIchola 4 and BARIchola 5. Seeds were thoroughly inoculated with
Biofertilizer (BARI Biofertilizer Rca 202) @ 50 g/kg seed before sowing, where
biofertilzer contained 108 Rhizobial cells/mg. The inoculant-coated
seeds were sown at the afternoon and furrow was filled up just after seed
sowing. The control treatment was BARIchola 1 without inoculated. BARIchola 5
showed minimum (9.83%) foot and root rot incidence while BARIchola 1
(untreated) showed the highest incidence (21.22%). The highest number of pods
per plant (94.45), number of seeds per plant (143.95), weight of seeds per
plant (22.25 g) and yield (1972 kg/ha) were recorded in BARIchola 5 and the
lowest of these parameters were recorded in BARIchola 1 without inoculum
(control). So, farmers may cultivate BARIchola 5 when seed inoculated with BARI
Biofertilizer Rca 202 @ 50 g/kg seed for disease reduction and increasing
yield.
132. M. M.
Hossain, K. M. Khalequzzaman, M. A.
A. Mamun, M. T. R. Mondal and R. N. Ahmed. 2015. Development of insecticide based management approach against thrips and
iris yellow spot virus in onion. International Journal of Experimental
Agriculture, 5(3):1-7.
Abstract: The field experiment
was conducted at Spices Research Centre (SRC), Bogra during the Rabi season of
2014-15 to evaluate the efficacy of different insecticides for the management
of thrips and Iris yellow spot virus on bulb onion. Six treatments (Five
insecticides + control) were replicated three times in randomized complete
block design. All the insecticides performed better than untreated control
treatment in reducing pest population. The insecticide Success offered best
protection followed by Intrepid and Confidor. Thrips populations were
positively correlated with Iris yellow spot virus in onion. The lowest number
of Iris yellow spot (7.47/plant) at 85 days after transplanting (DAT) was
recorded from Success 2.5SC followed by Intrepid 10SC (9.67/plant) with
severity rating 2 and the highest number of Iris yellow spot (27.42/plant) at
85 DAT was recorded from untreated control treatment with severity rating 4.
Maximum marginal benefit-cost ratio was recorded for Success 2.5SC (31.99:1)
followed by Intrepid 10SC (28.76:1) and the least was recorded from the Actara
25WG (12.88:1) treated plots. Success 2.5SC and Intrepid 10SC may be
recommended for the management of thrips and Iris yellow spot virus in onion.
133. Md.
Mosharraf Hossain, Ismail Hossain and K.
M. Khalequzzaman. 2015. Effect of
Seed Treatment with Biological Control Agent against Bipolaris Leaf Blight of
Wheat. International Journal of Scientific Research in Agricultural
Sciences, 2(7): 151-158.
Abstract: In-vitro and in-vivo experiments were
conducted to evaluate the effect of seed treatment with thirteen different
plant extracts and BAU-Biofungicide (a Trichoderma based preparation) on
fungal growth, disease severity, yield and yield contributing characters of
wheat during the Rabi season of 2010-11 and 2011-12. All the plant extracts and
BAU-Biofungicide significantly inhibited mycelial growth of the pathogen where
maximum reduction of mycelial growth over untreated control was found by
BAU-Biofungicide (67.36%) followed by Bavistin (58.42%). BAU-Biofungicide also
resulted 28% and 13%, respectively higher Vigour index and normal seedlings
over untreated control. Five botanicals (garlic, ginger, kaligera, neem,
mehedi) and BAU- Biofungicide showed better results under laboratory condition.
In pot and field experiments, selected treatments were showed better results in
respect of yield and other traits. BAU-Biofungicide treated seeds showed
statistically similar effect to Bavistin on AUDPC and grain yield under field
condition which resulted 20.51% higher grain yield over control.
134. Md. K.
Hasan and K. M. Khalequzzaman. 2015.
Relationship between production and
price of garlic in Bangladesh: an analysis by using distributed lag model. Bulletin
of the Institute of Tropical Agriculture, Kyushu University, 38: 31-38.
Abstract: The study was
conducted to aim at the relationship between production and price of garlic in
Bangladesh. The experiment was carried out by using garlic production and
prices data from Bangladesh Bureau of Statistics (during 1974-2011). The Koyck
model of distributed lag models was used. According to the results, garlic
production in Bangladesh has been influenced by the lag value of average price
formed in the market. The most striking result of the study is the time
required for the changes in the garlic prices in Bangladesh to an effect on garlic
production of 32.33 years. This result also shows that the farmers are very
enthusiastic for growing this crop, which is largely grown as a major spice
crop. The value of coefficient indicated that the changes in lag values of the
prices had a positive influence on production, but this influence was getting
smaller. To reduce the risk and uncertainty of the price of garlic, sustainable
garlic farming and establishment of an efficient marketing organization is
necessary.
135. M.M.
Rahman, M.A. Ali, T.K. Dey, M.R.H. Mondol and K. M. Khalequzzaman. 2015. Reaction of some potato germplasm
against stem canker and black scurf disease under natural infection in the
field. International Journal of Sustainable Crop Production, 10 (4): 17-22.
Abstract: The experiment as conducted at Tuber Crops
Research Sub-Centre, BARI, Bogra during 2007-2008 to evaluate the reaction of some
potato germplasm against stem canker and black scurf of potato under natural infection
in the field. Nineteen potato germplasm such as V-4, Quincy, Billini, Meridian,
Raja, Innovator Lady Rosetta, Diamant, Lalpakri, Courage, Heera, Ajiba, Cardinal,
V-36, BARI-TPS-1, Daifla, Asterix, Felsina and Granola were evaluated. Among
the germplasm, only three (Raja, Heera and BARI-TPS-1) were found to be moderately
resistant, eight germplasm were (V-4, Quincy, Billini, Lady Rosetta, V-36,
Courage, Daifla, Lalpakri) were moderately susceptible and two were susceptible
to Rhizoctonia solani.
136.
M.
Mamunur Rashid, M. Shamim Hasan, M. H. Rahman, Abu Noman Faruq Ahmed and K.
M. Khalequzzaman. 2015. Physiological and structural abnormalities of
coconut plants (Cocos nucifer L) at
different stages of growth and plantation sites under low temperature condition
of Bangladesh. The Agriculturists, 13(2): 113.-119.
Abstract: Physiological and structural changes of coconut plants at different
growth stages and plantation sites under low temperature conditions was
investigated during 1997-98, 2002-03, 2005-06 and 2009-10 in the northern
region of Bangladesh. Three growth stages viz. <7 7-15="" and="">15 years and
three locations viz. road side, near pond and near drain were selected for this
study. Leaf area damage with characteristics lesions categorized into mildly
damaged, moderately damaged and dead plants. Age and planting site revealed
very significant differences. The highest percent of dead (49.84-58.49%), moderately
damaged (37.20-46.21%) and mildly damaged plants (65.70-74.79%) were found in
road side, while the highest percent of dead plants (39.93-45.58%), doderately
(20.18-26.68%) and mildly damaged plants (69.46-70.37%) were found in pond side
and (11.74, 12.53 and 13.31%) in the 7-15 years old plants. The mean
temperature, sunshine hours and total precipitations remained below 16.880C,
10.25 hours and 11.7 cm, respectively during 1997-98, 2002-03 and 2009-10. The
highest amount of potassium (0.57 me/100 g soil) was found in pond side soil,
whereas the lowest amount of potassium (0.11 me/100 g soil) was found in road
side soil. It has been concluded that low temperature (below 16.880C),
mean precipitation 11.7 cm and amount of potassium 0.11 me/100 g in soil were
responsible for severe damage of the coconut plants in the study area. 7>
137. K. M.
Khalequzzaman. 2016. Effect of fungicides in controlling Alternaria
blight of cumin. Asian Journal of Applied Science and Engineering, 5 (1):
201-206.
Abstract: The experiment was conducted at Spices
Research Centre, BARI, Shibganj, Bogra, Bangladesh during 2014 - 15 to find out
the effective fungicides in controlling Alternaria blight of cumin. Four
fungicides viz. Rovral 50 WP @ 0.2%, Companion @ 0.2%, Secure 600 W @0.15%,
Sunvit 50 WP @0.5% and one control were used as treatment. Cumin line CN 026
was used in this experiment. Three fungicides reduced disease significantly
over control. Alternaria blight ranged from 14.40 - 90.81%, while the lowest
severity was recorded in Rovral 50 WP (0.2%) sprayed plots and the highest
severity was recorded in control treatment. Rovral 50 WP (0.2%) gave the
highest number of umbels/plant, number of umbel lets/plant, number of
seeds/umbel, number of seeds/plant, weight of seeds/plant and seed yield (675.0
kg/ha) which was followed by Companion and Secure 600 W. Sunvit and control
treatment did not produce any seeds.
138.
K. M. Khalequzzaman. 2016. Control of foot and root rot of
lentil by using different management tools. ABC Journal of Advanced Research, 5
(1): 35-42.
The
experiment was conducted at the sick plot, Pulses Research Centre, Ishurdi,
Pabna, Bangladesh during 2011-12 to find out the effect of chemical,
botanicals, biocontrol agents and healthy looking seeds against foot and root
rot of lentil. Chemical, botanicals, biocontrol agents and healthy looking
seeds were used as treatments in this experiment. The lowest foot and root rot
(21.67%) was obtained from when seed treatment with Provax 200 (2.5 g/kg seed)
which was followed by seed treatment with Trichoderma
harzianum compost (1:5) and apparently healthy looking seeds, and the
highest incidence (41.50%) was obtained from untreated control. The highest
number of pod/plant (45.26), number of seeds/plant (87.80), weight of
seeds/plant (2.44 g) and yield (1845 kg/ha) were recorded in seed treatment
with Provax 200 (2.5 g/kg seed) which were followed by seed treatment with Trichoderma harzianum compost (1:5) and
apparently healthy looking seeds, and the lowest of these parameters were
obtained from untreated control.
139. K. M. Khalequzzaman,
M. K. Uddin, M. M. Hossain and Md. Kamrul Hasan. 2016. Effect of fungicides in
controlling wilt disease of cumin. Malaysian
Journal of Medical and Biological Research, 3 (2): 69-74.
Abstract: The
experiment was conducted at Spices Research Centre, BARI, Shibganj, Bogra,
Bangladesh during 2014-15 to find out the effective fungicides in controlling
wilt disease of cumin. The treatments were five fungicides viz. Sunvit 50 WP
@0.5%, Secure @0.02%, Rovral 50 WP @0.2%, Bavistin DF @0.25%, Provax 200 WP
(0.25%) and one control (untreated). Cumin line CN 026 was used in the
experiment. Wilt incidence ranged from 13.45-37.69%, while the lowest incidence
was recorded In Bavistin treated plots which was statistically similar to
Provax and Sunvit, and the highest incidence was recorded in control. Bavistin
(0.25%) gave the highest number of umbels/plant, number of umbel lets/plant,
number of seeds/umbel, number of seeds/plant, weight of seeds/plant and seed
yield (586.5 kg/ha) which was followed by Provax and Sunvit, and the lowest of
these parameters were obtained from control treatment.
140. Md. Motaher Hossain, K. M. Khalequzzaman, Md. Tanjilur Rahman Mondal, J. Alam4, Md.
Shariful Islam. 2016. Development of
Management Approach against Thrips-Mite Complex of Chilli. International
Journal of Scientific Research in Agricultural Sciences, 3(1): 018-024.
141. M. M. Rahman, M. A. Ali, T. K. Dey, M.M. Islam, M.
U. Ahmad and K. M. Khalequzzaman.
2016. Effect of
organic amendment on stem canker and black scurf disease of potato (Solanum
tuberosum). Bioscience
Journal, Uberlândia, 32 (2): 361-370.
Abstract: An experiment was
conducted at Tuber Crops Research Centre, BARI, Bogra during 2008-2009 to
evaluate the organic amendment for controlling the stem canker and black scurf
of potato. The different kinds of organic amendments were: T1 =Poultry refuse
(PR) at 4 t ha-1, T2 =PR at 5 t ha-1, T3 =PR at 6 t ha-1, T4 =Mustard oil cake
(MOC) at 300kg ha-1, T5 =MOC at 500kg ha-1, T6 =Neem oil cake (NOC) at 300kg
ha-1, T7 =NOC at 500kg ha-1, T8 =Sawdust burning and T9 = Control. The
experiment was laid out in a randomized complete block design (RCBD) with four
replications. The organic amendment significantly influenced the disease
incidence, yield attributes and yield of potato. The lowest disease incidence
(17.5%) and per cent disease index (9.99) were found in T3 (poultry waste at 6
t ha-1). The minimum russet, deformed and Sclerotia infected tubers were also
recorded in poultry waste at 6 t ha-1. The highest healthy tubers and tuber
yield were found in the same treatment. Therefore, poultry manure 6 t ha-1
along with recommended dose of chemical fertilizer can be recommended to
produce healthy tubers and maximum tuber yield of potato.
142. K. M.
Khalequzzaman, Samima Naznin and Abul Khair. 2016. Effect of biopesticids in controlling leaf
curl virus of chilli. Asia Pacific Journal of Energy and Environment,
3(1): 29-34.
Abstract: The experiment was
conducted in the field laboratory of Spices Research Center, BARI, Shibganj,
Bogra,
Bangladesh during Rabi season of 2014-15 to find out the effect of biopesticides
in controlling vector as well as
leaf curl virus of chilli. The maximum infected plants (26.85%) were recorded
in untreated control and the minimum
infected plants (14.75%) were in Malathion (0.2%) which was
statistically
identical to all other biopesticides except cow urine (1:2). The highest
disease reduction (45.13%) over
untreated control was obtained from Malathion (0.2%) followed by cow urine
(1:1) and neem leaf extract
(1:2), and the lowest (26.37%) was obtained from cow milk (1:2). The highest
yield (18.33 t/ha) was recorded in Malathion
(0.2%) and the lowest (11.28 t/ha) was recorded in untreated
control.
All the biopesticides resulted least disease incidence and more yield compared
to control. Among the
biopesticides, cow urine (1:1), cow milk (1:1) and neem extract (1:2) showed
comparatively
better results against control. So, Melathion or biopesticides, cow urine
(1:1), cow milk (1:1) and neem leaf
extract (1:2) may be sprayed for controlling vector as well as leaf curl virus
and increasing yield of chilli.
143. A. Muqit, K. M. Khalequzzaman and M.
Muzahid-E-Rahman. 2016. Efficacy of imidacloprid and thiamethoxam for the
management of yellow mosaic disease of okra. International Journal of
Sustainable Crop Production, 11(1): 1-3.
Abstract: An experiment was
conducted to test the efficacy of two insecticides and number of sprays to
manage yellow mosaic of okra caused by Okra yellow vein mosaic virus in the
field through vector management. The experiment was carried out in the research
field of Plant Pathology Division, BARI, Joydebpur, Gazipur during summer
(April to July) 2010 and 2011. Two insecticides Imidacloprid (Admire) and
Thiamethoxam (Aktara) were sprayed 2 to 6 times at 7 day interval to reduce the
vector population. Significant reduction in disease incidence and increase in
yield was achieved due to application of chemicals. Disease was found to be
reduced by 5 to 50% depending on number of sprays. There was no significant
difference between the performance of two insecticides in managing the disease.
Four to five sprays were required to achieve a good control of the disease.
144. Samima
Naznin, K. M. Khalequzzaman and Abul
Khair. 2016. Effect of new fungicides
in controlling anthracnose/die back disease of chilli. Asian Journal of
Applied Science and Engineering, 5(2): 117-124.
Abstract: The experiment was conducted in the
laboratory and field of Spices Research Centre, BARI, Shibganj, Bogra,
Bangladesh during Rabi season of
2014-2015 to test the efficacy of some new fungicides in controlling
anthracnose/die-back disease and increase yield of chilli. Nine new fungicides
and one control were used as treatments. In vitro tests, Orion 72
WP
(0.2%) significantly inhibited the radial mycelial growth of the pathogen (Colletotrichum capsici) in the PDA
culture media. All the new fungicides significantly decreased the % leaf
infection, % leaf area diseased (LAD), % twig infection, % fruit infection, %
fruit area diseased (FAD) and increased fresh yield of chilli. Among the
fungicides, Orion 72 WP showed the best performance.
145. M. M. Hossain,
I. Hossain and K. M. Khalequzzaman.
2016. Biological control of leaf blight of wheat caused by Bipolaris sorokinian. Bulletin of the Institute of Tropical
Agriculture, Kyushu University, 39: 43-51.
Abstract: Five
different plant extracts including neem (Azadirachta
indica), mehedi (Lawsonia alba),
garlic clove (Allium sativum),
rhizome of ginger (Zingiber officinales),
seeds of black cumin (Nigella sativa),
and BAU-Biofungicide (a Trichoderma based
preparation) were used to evaluate the performance or effectiveness of those
biological control agent on Bipolaris leaf blight of wheat and related pathogen
(Bipolaris sorokiniana). Pathogenic
reaction was observed in Bipolaris sorokiniana against different treatments by
detached leaf method where leaf spot size was minimum (4.5mm) with
BAU-Biofungicide and maximum leaf spot size (32.5mm) with control. Effect of
seed treatment on wheat plant was evaluated by rolled paper towel method and
BAU-Biofungicide, extracts of garlic clove and neem leaf at the value of 13%,
12% and 10%, respectively higher normal seedlings and BAU-Biofungicide also
resulted 26.6% higher vigour index over control. Multiplication effect (seed
treatment plus foliar spray of same treatment) of different treatments was
examined to determine the efficacy for disease control. In pot and field
experiments, though Bavistin and Tilt were most effective however,
BAU-Biofungicide and extract of garlic clove were superior compared with the
treatments used for controlling leaf blight of wheat. Multiplication effect of
seed treatment plus foliar spray showed superior effect by BAU-Biofungicide
including higher 1000-grain weight (43.92g) and grain yield (2.75 t/ha). Seed
treatment with Bavistin and foliar spray with Tilt showed 1000-grain weight and
grain yield by 47.12g and 3.0 t/ha, respectively. Our data also revealed that
BAU-Biofungicide increased grain yield (29.87%) over control.
146. M. M.
Alam, M. N. Islam, M. Z. Haque, R. Humayun and K. M. Khalequzzaman. 2016.
Bio-rational management of whitefly (Bemisia tabaci) for suppressing
tomato yellow leaf curl virus. Bangladesh Journal of Agricultural
Research, 41(4): 583-597.
Abstract: Whitefly (Bemisia tabaci) is the vector of tomato yellow leaf
curl virus (TYLCV), is a serious pest of vegetables and other crops
worldwide. The experiment was conducted at Bangladesh Agricultural Research
institute (BARI) during two consecutive years of 2009 and 2010 to select a
suitable bio-rational management practice against white fly, transmitting
TYLCV. Treatments comprising tomato variety Ratan with diseased plant
uprooting, spraying
admire, applying admire on trap crop (marigold),
spraying neem, sesame and mustard oil with trix and the untreated control were
used in this experiment. The variety Opurba with similar materials as described
above was used. Percent virus infected tomato plants ranged from 1.33 to 19.00
in two consecutive years, where the highest infection was recorded in control
plot with variety Opurba and the lowest was recorded in variety Ratan treated
with Admire. Consequently, the highest yield (47.70 and 52.36 t ha-1 in 1st and
2nd year, respectively) in the plots of variety Ratan treated with admire and
the lowest yield was recorded in untreated control plots with variety Opurba
(14.75 and 30.30 t ha-1) for the two consecutive years. A strong positive
correlation was observed between whitefly population and % TYLCV infection for
both the years and both varieties of tomato. While a negative correlation was
observed between % TYLCV infection with number of fruits plants-1 and yield (t
ha-1) for both the years and in both varieties of tomato. These results are
consistent with the occurrences of TYLCV, which have been associated with the
percent virus infection in relation to yield and yield contributing characters
of tomato.
147. K. M. Khalequzzaman, Md. Mahfuz Alam,
M. M. Hossain. 2017. Seed Treatment with Fungicides for Controlling Foot and
Root Rot of Lentil. Journal of Scientific Achievements, 2 (10): 1-5.
Abstract: The experiment was conducted in the sick
plot at Pulses Research Centre, BARI, Ishurdi, Pabna, Bangladesh during 2013-14
to find out the control measure of foot and root rot of lentil by seed
treatment and its effect on yield. The test lentil variety was BARI Masur 1.
Seven fungicides viz. Bavistin (0.2%), Tilt 250 EC (0.05%), Folicur EW 250
(0.1%), Indofil M 45 (0.2%), Ridomil gold (0.2%), Dithane M 45 (0.2%), and
Vitavax 200 (0.2%), and one untreated control were used in this experiment. The
lowest foot and root rot (20.65%), and the highest plant survival (79.35%) were
obtained from Vitavax 200 (0.2%) followed by Bavistin (0.2%) and the highest
foot and root rot (36.26%), and the lowest plant survival (63.74%) were
obtained from control. The highest number of pods/plant, number of seeds/plant,
weight of seeds/plant and yield (kg/ha) were recorded in Vitavax 200 (0.2%)
which also followed by Bavistin (0.2%) and the lowest of these parameters were
in untreated control.
148. M. M. Hossain, K. M. Khalequzzaman, M. T. R. Mondal, Md. Kalim Uddin. 2017. Seasonal Variation of Gall Mite within the
Leaf Gall of Bay Leaf. Journal of Scientific Achievements, 2 (10): 6-9.
Abstract:
The field experiment was conducted at Spices Research Centre,
Shibganj, Bogra, Bangladesh during May 2015 to April 2016 to study the seasonal
impact on the population density of the gall mite, Aceria doctersi within
the leaf galls of Cinnamomum tamala. Bay leaf line BL001 were used for
the study. Phenological studies were carried out on galled leaf samples
collected randomly from C. tamala. Galled leaves were collected monthly,
through random sampling and galled leaf samples were put in polythene bags and
transported to the laboratory for further observation under the
stereomicroscope. The maximum number of mite per gall (78/gall) with gall size
3.0cm was recorded during the month of April then it becomes gradually decrease
and the minimum number of mite per gall (10/gall) with 2.1 cm gall size was
recorded during the month of December. The highest Chlorophyll Concentration
Index of the leaf (64.80) was also recorded from the month of December while
the lowest (41.20) Chlorophyll Concentration Index of leaf was recorded from
the month of April. Mite population were positively correlated with average
temperature (r=0.4475) and negatively correlated with relative humidity (r=
-0.5366) and rainfall (r=-0.0685). Mite population was also positively
correlated with the percentage of leaf area damage (r=0.8585**).
149.
M. M. Alam, M. M. Rashid, A. T. M. S. Islam,
S. I. Sikdar and K. M. Khalequzzaman. 2016.
Effect of initial moisture content and different storage container on the
quality of mustard seed (Brassica campestris L.). Asian
Journal of Applied Science and Engineering, 5 (3): 183-192.
Abstract: An experiment was carried out at Institute of Research and Training
(IRT) of Hajee Mohammad Danesh Science and Technology University, Dinajpur
during March to May 2016 for evaluating the effect of initial moisture content
and different storage container on the quality of mustard seed. Three types of
containers namely plastic container, polythene bag and gunny bag, and three
levels moisture content i.e. 9.75, 12.25 and 14.30% were used as the treatment.
Mustard seeds with 9.75% initial moisture level were found in good condition in
respect of germination, less number of abnormal and dead seedlings, better
shoot and root length, vigour index and poor fungal incidence. The highest
germination percentage was observed 80.14−87.74%, while the lowest percent of
abnormal seedling (8.64−12.04%) and dead seedling (3.33−8.27%) was found in the
seeds stored with 9.75% initial moisture content at different storage periods.
Fungal incidence was also found less in the seeds stored with 9.75% initial
moisture content. Among three storage conditions, plastic container was showed
the advantage for mustard seed storage compared to polythene bag and gunny bag.
The seed of gunny bag was found inferior in quality for all parameters at all
storage period. So, the results revealed that optimum moisture content and
ideal storage condition has the greatest benefit on quality seeds. It is
concluded that plastic container with 9.75% initial moisture content is the
best for storing the mustard seed with higher quality.
150. K. M.
Khalequzzaman. 2017. Screening
of BARI Rhizobium Biofertilizers against Foot and Root Rot of Lentil.
Journal of Scientific Achievements, 2 (10): 14-19.
Abstract: The
experiment was conducted at the sick plot, Pulses Research Centre, Ishurdi,
Pabna, Bangladesh during two consecutive years of 2011-12 and 2012-13 to screen
out the effective BARI Rhizobium Biofertilizers against foot and root
rot of lentil. Seven BARI Rhizobium strains viz. BARI LE 715, BARI Rlc
103, BARI Rlc 140, BARI Rlc 107, BARI Rlc 105, BARI Rlc 138 and BARI Rlc 101
were used as treatments. In 2011-12, foot and root rot incidence ranged from
9.66-29.95%, while the lowest incidence was recorded in BARI LE 715 which was
followed by BARI RLC 140, BARI RLC 107 and BARI RLC 138; and the highest incidence
was recorded in untreated control. BARI LE 715 gave the highest plant survival
(90.34%) and control treatment gave the lowest plant survival (70.05%). BARI LE
715 treated plots reduced maximum foot and root rot incidence (67.75%) over
untreated control. Similar trends of the results were observed in 2012-13. The
highest yield 2153 and 2016 kg/ha was obtained from BARI LE 715 in 2011-12 and
2012-13, respectively, and the lowest of these parameters were obtained from
untreated control for both the years.
151.
M.M.
Islam, ASM Golam Hafeez, K. M. Khalequzzaman, M. H. Reza, M. M. Hossain.
2017. Effect of botanicals and chemicals on rhizome rot disease of Ginger. Journal
of Scientific Achievements, 2(12): 8-12.
Abstract: Four experiments
were conducted at Gazipur, Madhupur, Bogra and Khagrachari to develop the
appropriate management package for rhizome rot in replicated manner following
randomized complete block design with 11 treatments having plant materials,
chemicals and poultry bedding during 2014-15 cropping season. The germination
was found 53 to 97 % at Bogra whereas it was higher (84-97 %) at Gazipur and
Madhupur field at Tangail (88-96 %). The germination ranged from 59-83 % in
Khagrachari. The disease incidence was the lowest (5.98 %) using seed treatment
with Ridomil gold (0.2%) and its 2 times soil drenching followed by seed
treatment with Chlorox (10 %) in all locations. The highest disease incidence
(64.94 %) was recorded in the control plots of all locations. The highest yield
22.92 t/ha was obtained in seed treatment with Chlorox (10 %) followed by seed
treatment using Ridomil and its 2 times soil drenching (18.11 t/ha) at Gazipur.
All treatments gave higher yield compared to control irrespective of locations.
152. Md.
Motaher Hossain, K.M. Khalequzzaman, M. A. Islam, M.T.R. Mondal, S.N.
Alam. 2017. Effect of different sowing
dates for the management of chilli pests. Malaysian Journal of Medical
and Biological Research, 4 (2): 47-52.
Abstract:
The field experiment was conducted at Spices Research Centre,
Shibganj, Bogra, Bangladesh during Rabi season of 2015-16 to assess the effect
of varying sowing dates against insect pest of chilli. The treatments were T1=
30 August (1st sowing); T2= 15 September (2nd sowing); T3= 30 September (3rd
sowing); T4= 15 October (4th sowing), T5= 30 October (5th sowing) and T6= 15
November (6th sowing). Sowing was done at 15 days interval from August to
November in the experimental field. The results showed that the maximum mean
aphid (9.27/leaf), thrips (10.77/leaf), mite(11.51/leaf) and fruit borer
population like H. armigera and S.litura larvae (8.25 and
6.74/plant, respectively) were found in 15 November sowing and minimum number
of those insect pest were present in 30 August sowing. Red ripe chilli yields
were also found to differ in descending order as follows: 30 August (13.05
t/ha)> 15 September (12.70 t/ha)> 30 September (10.30 t/ha)> 15
October (8.41 t/ha)> 30 October (5.20 t/ha)> 15 November (3.10 t/ha). It
was inferred that early sowing (30 August or 15 September) resulted in lower
incidence of aphids, thrips, mite and fruit borer. Such low level of insect
pest caused less crop injury which resulted in enhancing the red ripe yield of
chilli. So, it is suggested that for early sowing of winter chilli, the appropriate
planting time may be 30 August to 15 September.
153.
M.M.
Islam, ASM Golam Hafeez, K. M. Khalequzzaman, M. M. Hossain and M. H.
Reza. 2017. Effect of soil and seed treatments on seedling diseases of
Wheat. Journal of Scientific
Achievements, 2(12): 13-17.
Abstract: The
experiment was conducted at Plant Pathology Field, Bangladesh Agricultural
Research Institute (BARI), Gazipur-1701 during the cropping season 2014-17. The
effectiveness of different methods of seed and soil treatments were evaluated against
seedling diseases of wheat under inoculated condition in the field. The lowest
percentage of diseased seedlings, highest number of grain/head as well as the
highest yield 4.0, 4.5 and 5.0%; 42, 40 and 39, and 3767, 3765 and 3764 kg/ha,
respectively were obtained with seed treatment + soil drenching with
Vitavax-200 followed by seed treatment + soil drenching with Bavistin in three
consecutive years. The highest percentage of diseased seedlings, lowest number
of grain/head as well as the lowest yield 12.2, 12.7 and 13.2%; 31, 29 and 28;
and 2754, 2752 and 2751 kg/ha, respectively were obtained from the same
treatment. The lowest number of grain/head, lowest yield with the highest
percentage of diseased seedlings was recorded from the control treatment in all
three cropping seasons.
154. M. M. Hossain,
K. M. Khalequzzaman, M. A. Sarkar and D. Sarker. 2017. Assessment of
chlorophyll loss due to infestation of gall mite in Bay leaf. Asian Journal of Applied Science and Engineering, 6(3):
123-130.
Abstract: The field
experiment was conducted at Spices Research Centre, Shibganj, Bogura,
Bangladesh during May, 2018 to analyse the percent loss of chlorophyll a and b
induced by Aceria doctersi and to assess the damage potential of gall mite
within the leaf galls of Cinnamomum tamala. The highest chlorophyll a (8.26
milligram/g) and chlorophyll b (2.31 milligram/g) content was recorded from
control sample containing no gall tissue and the lowest chlorophyll a (2.20
milligram/g) and chlorophyll b (0.66 milligram/g) content was recorded from the
sample containing ≥50 gall /1g leaf sample. Eriophyid mite galls were
negetively correlated with chlorophyll a (r= -0.98245**) and chlorophyll b (r=
-0.95525**) content of bay leaf.
155.
M.M.
Islam, ASM Golam Hafeez, K. M. Khalequzzaman, M. H. Reza an M. M.
Hossain. 2017. Efficacy of environmental factors on alternaria blight disease
of mustard (Brassica campestris).
Journal of Scientific Achievements, 2(12): 18-23.
Abstract: The
experiment was conducted at Plant Pathology Field, Bangladesh Agricultural
Research Institute (BARI), Gazipur-1701; Regional Agricultural Research Station
(RARS), Jamalpur and Regional Agricultural Research Station, Rangpur during the
cropping season 2014-17. Efficacy of environmental factors on alternaria blight
disease of mustard was studied with six different dates of sowing. The highest
disease score 5.1 was recorded at Gazipur in December 10 sowing followed by 5.0
at Rangpur in December 01 and December 10 sowing. The lowest disease score 2.2
was recorded in November 01 sowing at Jamalpur. The highest seed yield 1.55
ton/ha was observed at Rangpur and the lowest seed yield 0.54 ton/ha was found
in December 10 sowing at Gazipur.The average air temperature was 23.6º C, 22.2º
C and 23.1º C at Gazipur, Jamalpur and Rangpur locations during November and it
was below 20º C in all three locations during December and January and then
rises at February and later.
156. M. M. Hossain, M. H.
Akand, M. A. Islam, K. M. Khalequzzaman
and M. J. Khatun. Effect of indole-3-acetic
acid and phosphorus on growth and yield of French bean. Bulletin
of the Institute of Tropical Agriculture, Kyushu University, 41: 1-13.
Abstract: The experiment was conducted at the Horticulture Farm of Sher-e-Bangla
Agricultural University, Dhaka, during the period from November 2008 to March
2009 to investigate the effect of IAA and phosphorus on the growth and yield of
French bean. The experiment consisted of
two factors, one factor is three levels of IAA and other factor is four levels
of phosphorus. BARI Zhar Sheem-1 was
used as a test crop. Application of IAA
and phosphorus at different levels had positive impact on growth, yield and
yield components of French bean. The
highest (17.59 t/ha) green pod yield of French bean was observed in 30 ppm IAA
application and the lowest (12.50 t/ha) was obtained from control
treatment. On the other hand, the
highest (18.16 t/ha) green pod yield was recorded from 130 kg P2O5/
ha application and the lowest (12.63 t/ha) was obtained from control treatment. The highest green pod yield (18.97 t/ha) was
obtained from the combination of 30 ppm IAA and 130 kg P2O5/ha
application plot and the lowest (10.00 t/ ha) was in control condition. The maximum (3.65) benefit cost ratio was
obtained due to application of 30 ppm IAA and 130 kg P2O5/ha,
while the lowest (2.07) in control condition.
Therefore, the best results were obtained from 30 ppm IAA and
combination with 130 kg P2O5/ha.
157. Mst.
Jannati Khatun, K.M. Khalequzzaman,
Mst. Shamsun Naher, Sinha Narayan Sankar
and Farzana Ashrafi Neela. 2019.
Effect of botanical plant extracts on radial mycelial growth of fusarium
of tomato. International Journal of Agricultural Sciences and Veterinary
Medicine, 7 (2): 18-30.
Abstract: The
laboratory experiments were carried out during 2011-2017 to evaluate the plant
extracts collected from different plant species to know the possible presence
of fungi as toxicant properties against Fusarium oxysporum pathogen. Extracts
of 28 number of botanical plants (plant parts/ whole plants) with water and
ethanol which produced 43 number of botanical extract combinations were tested
on radial mycelial growth on Fusarium oxysporum with 5, 10, 15, 20 and 25%
concentrations at 3, 6, 9 and 12 days after inoculation (DAI). All extracts of botanicals more or less
inhibited the mycelial growth of Fusarium oxysporum with higher concentrations,
but the highest mycelial growth was recorded in untreated control treatment.
Among the botanicals, Arjuna bark (Arjun) with ethanol, Papaya with ethanol,
Neem leaf with water, Neem leaf with ethanol, Neem bark with ethanol, Neem oil,
Black cumin with water, Black cumin (Kalojira) Oil, Swallow Wort (Akanda) with
water, Henna (Mehedi) with water, Henna (Mehedi) with ethanol, Ivy Gourd
(Telakucha) with water, Alamonda leaf with water, Periwinkle (Nayant ara) with
ethanol, Malabar Nut (Bashak) with ethanol,
Drumstick (Shajina) with ethanol, Garlic with ethanol and Betel leaf
with ethanol significantly inhibited the radial mycelial growth of Fusarium oxysporum
with higher concentration at different DAI.
158. S. Ahmed, A. Haque,
H. Mahmud and K. M. Khalequzzaman. 2019.
Egg deposition and weight loss of seeds by pulse beetle, Callosobruchus chinensis L. on different genotypes of pulses.
Bangladesh Journal of Agricultural Research, 44(3): 513-524.
Abstract: Lentil Lens culinaris Medik., mungbean Vigna radiata L. R. Wilczek,
chickpea Cicer arietinum L. and blackgram Vigna mungo L. Hepper of different
genotypes were tested against pulse beetle, Callosobruchus chinensis L. in the
laboratory of the Department of Entomology, Bangladesh Agricultural University
(BAU), Mymensingh to evaluate the number of eggs deposition and percent weight
loss of seeds. Maximum number of eggs (73.1) was oviposited on chickpea and minimum
(19.5) was found on blackgram. The highest (19.9%) weight loss in seed was
noted in chickpea and the lowest (7.6%) was recorded in blackgram. On the basis
of weight loss of seed, blackgram and mungbean exhibited as tolerant genotype,
lentil with moderately susceptible and chickpea as susceptible. Genotypes ML-22
of lentil, MC-21 of mungbean, Hyprosola of chickpea and MAK–1-79 of blackgram
were found tolerant as compared to other tested genotypes considering the
reduced number of egg deposition and lowest loss of seed weight. Evidently, the
percent weight loss was marked as positive correlation with number of eggs
deposition in all the genotypes and the regression line resulted in increasing
the number of eggs laid with the increase in percent weight loss.
159. Mst. J.
Khatun, K. M. Khalequzzaman, Mst. S.
Naher and F. A. Neela. 2020. Management of Fusarium wilt of tomato by
botanicals and biocontrol agents and their effect on yield. Bangladesh Journal
of Botany, 49(1): 71-74.
Abstract: Investigation
was undertaken to screen out the extract of botanicals viz., neem leaf, neem
oil, garlic, marsh paper plant, allamanda leaf, wood apple leaf, betel leaf and
biological antagonists viz., Trichoderma viride and T. harzianum. Positive
control was soil amendment with Provax and negative control with untreated
soil. Soil drenching with Provax and untreated soil showed 7.65 and 37.5% wilt
of tomato. Wilt incidence varied from 8.5 - 30.81%. Botanicals and biocontrol
agents had significant effect on yield of tomato. Provax gave the highest (30.55 t/ha) yield which was
statistically identical to garlic extract (29.66 t/ha) and untreated control
showed the lowest (20.19 t/ha) yield which was followed by soil drenching with
neem leaf extract. Both the biocontrol agents viz., T. harzianum and T. viride
as broth and compost significantly reduced wilt incidence of tomato in the
field over control.
160.
K. M. Khalequzzaman and M. S.
Monjil. 2020. Effect of fungicides in controlling bulb rot of onion. International
Journal of Graduate Research and Review, 6(2): 34-39.
Abstract: The experiment
was conducted in sick plot at Spices Research Centre, BARI, Shibganj, Bogura,
Bangladesh during Rabi season of 2017-18 to find out the effective control
measure of basal or bulb rot of Onion. Bulb of BARI piaz 4 was used in this
experiment. Six fungicides, healthy and fresh bulb and one control were the
treatments. The lowest emergence (86.92%) of onion was recorded in control
plots and the highest emergence (98.11%) was recorded in Bulb treatment and
soil drenching with Amistar Top 325 SC. The lowest bulb rot incidence (8.76%)
and highest disease reduction over control (70.52%) was obtained from Bulb
treatment and soil drenching with Amistar Top 325 SC. The highest bulb rot
incidence (29.72%) was obtained from untreated control plots which was followed
by Healthy and fresh Bulb (25.59%). The highest number of capsules per plant
(448.05), number of seeds per capsule (4.73), seed yield per plant (6.18 g) and
yield (750.56 kg/ha) were obtained from Bulb treatment and soil drenching with
Amistar Top 325 SC and the lowest of these parameters were obtained from
untreated control. Among the fungicides, Amistar Top 325 SC (0.1%), Cabriotop
(0.3%) and Provax 200 WP (0.25%) were found individually more effective to
control basal or bulb rot of onion, enhance growth attributes and yield. So,
farmers and researchers may use Amistar Top 325 SC or Cabriotop or Provax 200
WP to decrease bulb rot incidence and increase seed yield of Onion.
161. M. M. Hossain,
K.M. Khalequzzaman, M. S. Alam, M. T.
R. Mondal and M. M. Islam. 2020. Efficacy of
different coloured sticky traps against thrips of Chilli. International
Journal of Applied Sciences and Biotechnology, 8(2): 187-190.
Abstract:
The field experiment was conducted at Spices Research Centre,
Shibganj, Bogura, Bangladesh during Rabi season of 2017-18 to study the color
preference of Scirtothrips dorsalis in
chilli. The treatments were T1= Blue trap@40 trap/ha; T2=
Yellow trap @40 trap/ha; T3= White trap @40 trap/ha; T4=Green
trap @40 trap/ha and T5= Pink trap @40 trap/ha. Among the color
traps used, at 35 days after installation (DAI) of trap blue color attracted
highest (8.44 thrips/sq. inch area of trap) number of S. dorsalis adults followed by white (5.43 thrips/sq. inch area of
trap), yellow (4.30 thrips/sq. inch area of trap), green (3.52 thrips/sq. inch
area of trap) and pink (3.40 thrips/ sq. inch area of trap) color. Blue coloured sticky trap also attracted comparatively a
smaller number of beneficial insects and can be used for relative estimate of S. dorsalis population and also for
monitoring and mass trapping as a component of IPM program.
Pincipal Scientific
Officer (Plant Pathology)
Spices Research
Centre (SRC)
Bangladesh
Agricultural Research Institute (BARI),
Shibganj, Bogra,
Bangladesh.
E-mail:
zaman.path@gmail.com; zaman.path@yahoo.com
Mobile: 01911-762978;
01558-313632
No comments:
Post a Comment