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Articles by M.A. Hossain
Total Records ( 18 ) for M.A. Hossain
  S.U. Tipu , K.L. Hossain , M.O. Islam and M.A. Hossain
  An investigation on the effect of pruning height on shoot biomass yield of Leucaena leucocephala was carried out at the Agroforestry Farm, Bangladesh Agricultural University, during February to May 2005. The experiment was laid out in randomized complete block design with three replications. Treatments included four pruning heights; 3-5 (basal cut), 50, 100 and 150 cm above the collar zone. Yield of shoot biomass increased greatly with the increase in pruning heights. Higher pruning heights had a significantly higher number of branches, length of branches and leaves per plant than those of the lower heights. The 150 cm pruning height was found to yield the highest biomass followed by the 100 cm height. The 50 cm and the basal cut were statistically similar with regard to leaf biomass. Therefore, it was concluded that a higher pruning height should be practiced in Leucaena for higher shoot biomass yield.
  M.H. Ahmad , M.Y. Miah , M.A. Ali and M.A. Hossain
  An experiment was conducted with 128, 7 days old Vencobb broiler chicks to study the effect of feeding different protein concentrates (Jasoprot, Provita, Fishpro) on the performance of broiler. The dietary treatment was fish meal based control diet where fish meal was replaced by different protein concentrates. The live weight of broilers fed different protein concentrates differed significantly (p< 0.01) at 4, 5 and 6th weeks of age. The live weight gain during 2-6 weeks in Jasoprot was higher than other treatments. Broilers fed Josoprot diet had better feed conversion ratio than other dietary treatments. At 6 weeks of age, the production number in Jasoprot diet was significantly (p< 0.01) higher than other dietary treatments. Similar trend was observed in performance index. Survivability was similar in different treatments during the experimental period. Net profit was higher (p< 0.01) in Jasoprot diet as compared to other treatments. It can be concluded that protein concentrates available in the market could replace fish meal from broiler diet with satisfactory performance. However, Jasoprot seems to be the best as protein concentrates studied in respect of broiler performance and financial return.
  M.K. Begum , K.M. Hasan , S.M.A. Hossain and M.A. Hossain
  In ratoon, crop cutting height of culm at above 15 cm was found to be favourable for plant attributes especially 1000 grains weight, grain yield and straw yield. On the other hand, 120 kg N ha-1 noticed for the tallest plant, the highest bearing tillers hill-1, sterile spikelets panicle-1, 1000 grains weight, grain yield and straw yield. In treatment combination of 15 cm culm cutting height of culm and 120 kg N ha-1 was found to produce also the highest grain yield. The highest grain yield (1.56 t ha-1) resulted from ratoon crop was 25.16% of the primary crop. The yield and most of the other plant attributes were lower and field duration was also shorter in ratoon crop than those of the primary crop.
  M.K. Begum , K.M. Hasan , M. Salim , M.A. Hossain and M.K. Rahman
  Yield and yield contributing attributes of BR11 rice were influenced by different doses of the herbicides used. The highest grain yield (5.14 t ha-1), thousand grain weight, straw yield were obtained by the treatment Golteer 5G at 24.70 kg ha-1. The tallest plant and second highest grains/panicle were produced in Settoff 20WG at 50 g ha-1. Number of grains/panicle was found to be maximum in plots treated with Ronstar 25EC at 1.0 l ha-1. The smallest plant, lowest number of effective tillers plant-1, non effective tillers plant-1, grains panicle-1, thousand grains weight, grain yield and straw yield were found in control. Golteer 5G at 12.35 kg ha-1 produced the highest number of non effective tillers plant-1. The results also demonstrated significant difference among the treatments.
  N.K. Halder , M.A. Hossain , M.A. Siddiky , Md. Rafiuddin and M.H. Ullah
  A field experiment was carried out at Calcareous Brown Floodplain Soil of Regional Agricultural Research Station, Jessore during the two consecutive seasons of 2000-2002. The objectives were to evaluate the effect of boron on the yield of mustard and to screen out the suitable variety (s) tested against different boron levels for maximizing yield of mustard in the study area. Four varieties of mustard viz., BARI Sharisha-6, 7, 8 and 9 and 4 levels each of boron (0, 1.0, 1.5 and 2.0 kg ha-1) along with a blanket dose of N120P35K65S20Zn5 kg ha-1 and cowdung 5 t ha-1 were taken in the study. Results revealed that BARI Sharisha-6 integrated with 1.5 kg B ha-1 was found to be superior to all other treatment combinations. The highest mean seed yield (1.96 t ha-1) was recorded with the said treatment by 25.64% yield increase. Among the 4 tested varieties of mustard, BARI Sharisha-7 showed a good performance and produced the highest mean yield (1.77 t ha-1) as compared to other varieties used. On the other hand, boron at the rate of 1.5 kg ha-1 individually increased the highest seed yield by 58.83%, over boron control (Bo). However, from regression analysis, a positive but quadratic relationship was observed between seed yield and boron levels.
  Shamsuddin Ahmad , Ahsanul Haque , A.K.M. Faruquzzaman , M. Hussain and M.A. Hossain
  Out of eight kenaf (Hibiscus cannabinus L.) cultivars assessed under field conditions against spiral borer (Agrilus acutus Thumb.), two were rated resistant, one was moderately resistant, three were moderately susceptible and two were susceptible. Among the hybrids progenies one was rated resistant, two were moderately resistant, one was moderately susceptible, two were susceptible and one was highly susceptible. Among resistant cultivars and hybrids, differences in mean gall length were insignificant, however, in percent infestation and mean percent damage (APD), the differences were significant.
  S.M.K. Alam , M.A. Matin , M.A. Hossain and M.K. Uddin
  A field experiment was carried out to study the effect of different tillage practices on some soil physical and chemical properties. The soil was calcareous grey belonging to Sonatala series of Old Brahmaputra flood plain soil. The treatments comprised of To, T1(CP2), T2(CP3), T3(CP4), T4(PT2), T5(PT3) and T6(PT4). The bulk density (1.20 g cm -3) was h igher in To(no tillage) treatment than that of any other treatment. The lowest bulk density (0.86 g cm -3) was found at T6 (PT4) treatment. Bulk density significantly varied within the depths. The highest bulk density was recorded in 20-30 cm soil depths and the lowest was 0-10 cm soil depth. Air filled porosity and soil moisture content increased remarkably by T6(PT4) treatment compared to control. The highest organic matter was 1.60% and the lowest was 0.78% under To(control) and T6(PT4) treatment respectively. The NH4-N, available S, exchangeable K significantly influenced due to tillage operation whereas NO3-N, available P and exchangeable Ca did not respond significantly. Available N, P, S, exchangeable K and Ca decreased with the increasing of depth.
  M.A. Hossain , M.R. Karim , S. Begum , M.A. Hossain and M.A. Haque
  Experiment was carried out to investigate the effect of cephalexin on sex expression, fruit setting, fruit development and yield of cucumber. Cucumber was grown in the field at natural condition and treated with cephalexin solutions of 0,12.5, 25, 50, 75 and 100 ppm at seedling stage (2-true leaf stage). Data were collected on number of male flowers/plant, number of female flowers/plant, number of fruits/plant, days to first male flowers, days to first female flowers, % fruit setting, fruit size, fruit weight and fruit yield/plant. The results revealed that foliar application of cephalexin changed the growth habit of cucumber reducing the vegetative phase and extending flowering phase of the plant. The lowest vegetative phase (30.3 days) and the highest reproductive phase (65 days) was found in the plants treated with 50 ppm cephalexin. It suppressed the production of male flowers but increased the number of female flowers thereby subsiding the ratio of male to female flowers. Cephalexin significantly increased the fruit setting over control with the highest (68.7%) in 50 ppm. It also increased the fruit length, girth, weight and ultimately total yield/plant by 48.0, 55.0, 52.6 and 172.2%, respectively, in 50 ppm treatment.
  M.A. Habib , M.A.R. Sarker , M.R. Uddin , M.R. Karim and M.A. Hossain
  The experiment was conducted to examine the effect of rate and time of nitrogen application and their interaction on late transplant aman rice (cv. BR23) and comprised of four nitrogen rates and five timing of nitrogen application. Application of N-fertilizer @ 100 kg ha -1 produced the highest plant height, number of bearing tillers hill -1, panicle length, number of grains panicle -1, number of sterile spikelets panicle -1,1000-grain weight, grain yield, straw yield and biological yield which were similar to that of the plants fertilized with 80 kg N ha -1. Minimum values of the aforesaid parameters were observed in all plots when the crop was not fertilized with nitrogen. Nitrogen rate increased grain and straw yield up to the highest rate of nitrogen. The highest grain and straw yields were obtained from three equal split application of nitrogen at basal, early tillering and panicle initiation stages. Yield attributes like, number of total tillers hill -1, number of bearing tillers hill -1, panicle length, number of grains panicle -1, biological yield and harvest index were also increased in three equal split application compared to two split application of nitrogen. Interaction between rate and time of nitrogen application also significantly influenced the number of tillers hill -1, grain yield and harvest index. The highest grain yield obtained from the application of 100 kg N ha -1 in three equal splits at basal, early tillering and panicle initiation stages. Yield parameters were not significantly influenced by the interaction between rate and time of nitrogen application.
  M.Z. Karim , M.N. Amin , M.A. Hossain , S. Islam , Faruk Hossin and R. Alam
  Protocol for induction of callus and regeneration response of two sugarcane varieties (Isd-16, Isd-28) was established through callus culture using leaf sheath. Multiple shoot regeneration at various frequencies was observed using different concentrations and combinations of growth regulators. The highest percentage of callus induction was observed in the medium containing 3.0 mg l -1 2,4-D with 10% coconut water (CM). The best response in terms of multiple shoot formation was observed that on MS medium supplemented with BAP 1.0 mg l -1 +IBA 0.5 mg l -1. NAA (3.0 mg l -1) was found effective in the production of roots. The variety Isd-16 showed better response than the variety Isd-28 towards shoot multiplication. Seventy percent of the plantlets produced from in vitro culture method survived in the ex vitro condition.
  M.A. Hossain , L. Rahman and A.K.M. Shamsuddin
  Genotype x environment interactions through different stability parameters and performance of the traits of genotypes were studied. The traits were; days to maturity, number of branch/plant, 100 seed weight and seed yield/plant in ten soybean genotypes across five environments represented by sowing dates. Significant difference were observed for genotypes, environments and genotype-environment interaction. Stability analysis after Eberhart and Russell’s model suggested that the genotypes used in this study were all, more or less responsive to environmental changes. Most of the genotypes perform better in Env. 3 (5th January date of sowing). Based on phenotypic indices (Pi), regression (S2di) genotype colombus was found stable for days to maturity. Shohag, BS-60, G-2120 and Cobb were identified as stable for number of branch/plant, whereas; the genotype BS-60 was found stable for 100 seed weight. The genotype BS-60 and Cobb were considered as most stable genotypes for seed yield/plant. In general the genotype BS-60 was found stable for most of the characters studied.
  M.A. Hossain , B.C. Roy , M.A. Rahman , A.I. Khan and A.W. Julfiquar
  On farm trials were established with two advanced hybrid rice lines, IR68877H and IR69690H during the boro season 2000-2001 in five locations-Fakirhat, Babuganj, Bhola sadar, Mothbaria and Nalchhiti upazilla under Bagerhat, Barisal, Bhola, Pirojpur and Jhalokathi districts, respectively. Near each hybrid rice field, BRRI dhan28 and BRRI dhan29 were also transplanted. The varieties BRRI dhan28 and BRRI dhan29 were used as check varieties for IR68877H and IR69690H, respectively. The performance of IR69690H was better than that of IR68877H. The grain yield of IR68877H varied between 6.5 and 9.30 t ha ha-1 with an average yield of 7.85 t ha ha-1 over the locations and that of IR69690H, it was 7.26 to 9.56 t ha ha-1 with an average of 8.25 t ha ha-1 . The average yield advantage of IR68877H over the check variety BRRI dhan28 was 1.41 t ha ha-1 and that of IR69690H over BRRI dhan29 was 1.51 t ha ha-1 . Great variations on grain yield were observed among the sites. The locations Babuganj and Bagerhat were the most productive, whereas the site Mothbaria was the least productive. Majority of the farmers preferred IR69690H, which was later released as hybrid rice variety named as BRRI hybrid dhan1 for Jessore and Barisal region. The farmers chose this line mainly due to its higher yield potential, larger panicle size, low shattering tendency of grain and good appearance.
  M.M. Hossain , K.L. Hossain , M.M.U. Miah and M.A. Hossain
  A field experiment was conducted to evaluate the performance of wheat varieties as an understory crop of different multipurpose tree species at the Agroforestry Farm, Hajee Mohammad Danesh Science and Technology University, Dinajpur, during November 2005 to March 2006. Five wheat varieties such as Gourove, Sourove, Shotabdi, Kanchan and Protiva were cultivated as an understorey crop of three different tree species such as Albizia lebbeck, Psidium guajava and Mangifera indica. The experiment was laid out in split plot design with three replications where tree species were in main plot and wheat varieties were in sub plots. All the tree species were statistically indifferent in their effect on grain yield. However, the highest yield (2.60 t ha-1) was found under Albizia lebbeck followed by Mangifera indica (2.58 t ha-1) and Psidium guajava (2.53 t ha-1). The trees species at their early stages of growth had a very little impact on the associated wheat crop except that crops grown in close proximity with tree lines suffered around 11-13% yield reduction. Among the wheat varieties, Shotabdi produced the highest grain yield (2.88 t ha-1) and total dry matter followed by Gourove and Shourove. Therefore, it can be suggested that farmers in the northern region of Bangladesh may cultivate wheat variety Shotabdi as an understory crop of Albizia lebbeck during its early years of establishment.
  M.Z. Karim , R. Alam , R. Baksha , S.K. Paul , M.A. Hossain and A.B.M. Mafizur Rahman
  Leaf sheath were used as explants to induce callus on modified MS media supplemented with 2, 4-D as growth regulators. Different concentrations of BAP, IBA, NAA and IAA were used to regenerate shoots and a concentration of 1.0 mg/l BAP and 0.5mg/l IBA was found superior in the optimum production of multiple shoots. NAA (5mg/l) showed best performance in the production of roots. The plantlets were successfully transferred to soil with 70 percent survivability.
  B.C. Roy , M.A. Hossain and M.A. Rahman
  Field experiment was conducted at the Bangladesh Rice Research Institute, Charbadna farm, Barisal, from boro 2001 to aman 2002. Seven photoperiod-sensitive rice varieties including three fine grain aromatic varieties were transplanted in December 15 and December 30, 2001. After harvest of boro crop the ratoons, came out from the remaining straw and base of the hills, were allowed to grow and in the succeeding aman a good harvest was obtained from those ratoons. In the boro season, the highest yield was obtained from BRRI dhan41 followed by BR23 (7.51 and 7.06 t ha-1, respectively). The yield of aromatic varieties was about 5 t ha-1. The ratoon-yields of both aromatic and non-aromatic varieties in the succeeding aman season were also encouraging and produced about 2 t ha-1, which was more than the average yield of local varieties normally cultivated in the transplanted aman season in that region. The highest yield was obtained from BR23 (2.87 t ha-1) followed by BRRI dhan37 (2.63 t ha-1). From this experiment, it was revealed that the photoperiod-sensitive rice varieties could be planted in the early boro season and the ratoons from this crop also produced a good harvest, might be a low-cost rice cultivation technique in those areas, where crop establishment in the transplanted aman season is somewhat difficult due to early intrusion of tidal water in the field at the end of boro season.
  Sabina Yesmin , M.H. Rahman , M. Afzal Hussain , A.R. Khan , Farzana Pervin and M.A. Hossain
  For studying the load of the bacterium, Aeromonas hydrophila in swamps and artificial fish infection, four swamps were studied in Rajshahi University campus during November, 2001 to October, 2002. The load of A. hydrophila was found to vary from 1.16x107 to 4.90x107 CFU ml-1. In the artificial infection to the snakehead, Channa punctatus, the mortality rates were recorded as 100, 75, 25, 12.5 and 0% at 3.42x109, 3.42x108, 3.42x107, 3.42x106 and 3.42x105 CFU fish ml-1, respectively. The average bacterial load in the swamps (3.42x107 CFU ml-1) was slightly higher than that prevailed in the control pond (3.13x107 CFU ml-1). Swamps can be utilized at the present bacterial load for the fish culture.
  M.A. Hossain , S.M. Rafiqul Islam and N. Absar
  Three electrophoretically homogeneous lectins were purified from the extract of mulberry seeds. The two lectins i.e. MSL-2 and MLS-3 were purified by gel filtration of 100% ammonium sulfate saturated crude extract followed by ion-exchange chromatography on DEAE-cellulose while another MSL-1 was purified by further chromatography on CM-cellulose column. The purity of the lectins was checked by polyacrylamide disc gel electrophoresis. The molecular masses of MSL-1, MSL-2 and MLS-3 as determined by gel filtration were estimated to be 175, 120 and 89 kDa, respectively. Again molecular masses of MSL-1, MSL-2 and MSL-3 as determined by SDS-polyacrylamide gel electrophoresis were calculated to be 177, 121 and 90 kDa, respectively. SDS-polyacrylamide gel electrophoresis indicated that the lectin, MSL-1 was dimer in nature with two subunits held together by disulfide bonds. The other two lectins, MSL-2 and MSL-3 were tetramer in nature contained four non-identical subunits that were held together by nonionic hydrophobic interaction. The lectins agglutinated specifically rat red blood cells and galactose and galactose containing sugars were found to be the potent inhibitor of agglutination. The lectins were glycoproteins in nature with neutral sugar content of 5.6, 5.3 and 4.5% for MSl-1 MSL-2 and MSL-3, respectively. The sugar composition of the lectins was glucose and mannose for MSL-1 and galactose for both MSL-2 and MSL-3.
  M.A. Mannan , R. Tasmin , M.A. Hossain , M. R. Ali , M. Zaman and M. Kader
  Malathion 57EC and Diazinon 60EC with different doses (1 ml, 2 ml and 3 ml/L water) were tested to evaluate the effect on mustard aphids and their toxicity on the predators and other beneficial insects of mustard aphid. Malathion was more effective than Diazinon for the control of aphids and it was less toxic for the predators and other beneficial insects. The lower dose of insecticides have less adverse effect on the predators and other beneficial insects than the higher dose.
 
 
 
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