A K M Aminul Islam | Bangabandhu Sheikh Mujibur Rahman Agricultural University (original) (raw)

Papers by A K M Aminul Islam

South African Journal of Botany, 2021

Heat stress is one of the major abiotic stresses affecting the growth and yield-related character... more Heat stress is one of the major abiotic stresses affecting the growth and yield-related characters of wheat.
Using various genetic approaches we can develop heat tolerant wheat varieties in order to mitigate the effect
of heat stress on wheat production. Currently different strategies have been adopted to develop thermotolerance in wheat. Development of thermotolerant wheat varieties is one of the major steps toward the improvement of wheat yield against heat stress. For this purpose, it is important to have a complete and clear concept
of the morpho-physiological, biochemical and molecular mechanisms of heat tolerance in wheat. This review
may provide better knowledge about heat tolerance through discussing the morphological, physiological,
biochemical and molecular mechanisms of heat tolerance in wheat based on different parameters such as
grain filling duration, grain yield, leaf senescence, canopy temperature depression, photosynthesis, chlorophyll content, membrane thermostability, translocation of photo-assimilates, starch synthesis, antioxidant
response, protein synthesis and omics approaches.

Ann. Bangladesh Agric, 2008

... 1999. Genetic divergence in quality rice. Oryza. 36(1): 20-23. Basher, MK 2002. Genetic and m... more ... 1999. Genetic divergence in quality rice. Oryza. 36(1): 20-23. Basher, MK 2002. Genetic and morpho-physiological basis of heterosis in rice. Ph.D Thesis. Department of Genetics and Plant Breeding. BSMRAU, Gazipur. 92-95 pp. Belaj, A., Z. Satovic, L. Rallo and I Trujillo. 2002. ...

Purpose: To increase yield and quality of fruit vegetables under high pressure of soil-borne path... more Purpose: To increase yield and quality of fruit vegetables under high pressure of soil-borne pathogens, nematode, and unfavorable environments introducing vegetable grafting in agriculture are crucial. It also helps to reduce disease susceptibility and to increase tolerance against abiotic stresses. Findings: Grafting in vegetables is a centuries-old practice to improve yield through organic culture. It was introduced in USA and becoming more common in organic farming of vegetables. Vegetable grafting is popular practice in many European and North American countries, Japan, Korea, and China. Vegetable crops are exposed to many abiotic and biotic stress factors, including salinity, heat, heavy metals, excess trace elements, diseases, and pests, which have a significant effect on crop growth and productivity. Grafting is effective practices in solanaceous and cucurbitaceous vegetables to control soil-borne diseases including; Verticillium wilt, Fusarium wilt, and bacterial wilt, and ...

Agronomy, 2021

Abiotic stresses varyingly affect the grain composition and quality of food legumes. This paper i... more Abiotic stresses varyingly affect the grain composition and quality of food legumes. This paper is aimed at discussing the impact of abiotic stresses on the grain composition and quality of food legumes. As protein is the main grain constituent of food legumes for which it is being consumed by humans as a cheap protein source, abiotic stresses such as heat, cold, drought, salinity and heavy metals alter this grain protein content in different dimensions for different food legumes. Moreover, other valuable constituents such as starch, soluble sugar, oil, fatty acid and fiber content are affected differently by the abiotic stresses. The diverse impact of these abiotic stresses ultimately declines the grain quality and yield of food legumes. As food legumes play a vital role in the nutritional diet of millions of people in the world and are occasionally denoted as the meat of poor people, it is important to recognize that the sustainable production of food legumes, even under various e...

Advances in Biofuels and Bioenergy, 2018

Biodiesel derived from plant species has been a major renewable source of energy and has received... more Biodiesel derived from plant species has been a major renewable source of energy and has received global interest mainly due to climate change issue. It has increasingly received worldwide attention as a promising alternative fuel. Growing interest in biodiesel production from edible oil brings scarcity in food supply. To overcome this problem, utilization of non-edible oils could be explored. Non-edible oil as biodiesel feedstock impressed in many factors such as energy sustainability and independence in certain areas, especially in rural community, creating job opportunities, elevating environmental merits, and avoiding monoculture of fuel resources. The present chapter reviews several such potentials, including fatty acid methyl ester (FAME) or biodiesel production process of nonedible oil resources as biodiesel feedstock in SouthEast Asian geographical region. The SouthEast Asian countries fall in the tropical region of the world and have many species as non-edible oil, viz., jatropha, karanja, polanga, neem, rubber, and mahua. The oils derived from these species have shown considerable potential as biodiesel feedstock.

African Journal of Agricultural Research, 2017

Twenty one hybrids along with two check varieties of maize were assessed for genotype environment... more Twenty one hybrids along with two check varieties of maize were assessed for genotype environment interaction (GEI) and stability for selection of the best hybrid maize in three different Agro-Ecological Zones (AEZ) of Bangladesh during rabi season 2014/2015. The experiment was laid out in Randomized Complete Block Design with 3 replications. The additive main effects and multiplicative interaction (AMMI) model was used to analyze the genotype-environment interaction over three locations to select the hybrids having higher yield (yld) and other potential attributes. The mean sum of square for genotypes was highly significant for the studied characters. Similarly, environmental variances were also highly significant for all characters. Variances due to genotype × environment interaction were highly significant for cob length and thousand seed weight (TSW). AMMI Component 1 showed variation for TSW. But AMMI Component 2 and G×E (Linear) revealed insignificant variation for all the characters. The highly significant effects of environment indicated high differential genotypic response across the different environments. The environments of Gazipur (Ij=-1.42**) and Barisal (Ij=-0.068) were poor but Rangpur (Ij=1.49)) was a favourable environments due to positive environmental index for tested maize hybrids. Considering the mean, bi and S 2 di for all the parameters, it was evident that all the genotypes showed different response of adaptability under different environmental conditions. Among the hybrids , WL4×WL5, WL1×WL3, WL2×WL3, WL1×WL4 and the check NK 40 exhibited the higher grain yield; bi~1 and S 2 di~0 indicated that these hybrids were stable across the environment. All the hybrids showed insignificant values for regression coefficient and also deviation from regression except WL1×WL5. The AMMI biplot showed four grouping of genotypes having none of them, low yielding and unstable; one hybrid was low yielding but moderately stable; eight were high yielding and stable hybrids, and fourteen were high yielder but highly unstable.

Bangladesh Journal of Plant Breeding and Genetics, 2015

Twenty five advanced lines among them twelve lines obtained from the cross between Edible Podded ... more Twenty five advanced lines among them twelve lines obtained from the cross between Edible Podded Pea and IPSA Motorsuty-1, nine obtained from the cross between Local White and IPSA Motorsuty-3 and five parental lines were included to measure genetic diversity. The field experiment was conducted at the research farm, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh. Analysis of variance showed significant differences among the genotypes for all characters. Multivariate analysis based 14 agronomic characters indicated that the 26 genotypes fell into five distant clusters. Fifty percent germination was found to be contributed maximum towards the total divergence. The inter cluster (D² values) distance was maximum between cluster I and cluster II and intra-cluster distance was in cluster III. Cluster V comprising five genotypes, namely, G11, G14, G21, G22, G25 and scored first position for 50% germination, pod per plant, 100 green see...

Sains Malaysiana, 2015

The seeds of 6 × 6 half diallel progenies of Jatropha curcas were used to evaluate the effects of... more The seeds of 6 × 6 half diallel progenies of Jatropha curcas were used to evaluate the effects of genotypes (parents and their hybrids) on germination traits of jatropha at Universiti Kebangsaan Malaysia. Germination traits were varied significantly (p<0.01) among the seeds of hybrids and their parents. The germination was started at four days after planting and prolonged until 15 days. Seed germination varied from 58.06 to 92.76% among the parents and 53.43 to 98.96% among the hybrids. The highest germination was observed in the hybrid P 2 × P 4 and none of the hybrid or parent showed complete (100%) germination. The maximum GI (germination index) and SVI (seedling vigour index) were found in the hybrids P 1 × P 5 and P 1 × P 2 and the lowest in P 2 × P 4 and P 3 × P 6 , respectively. For most germination parameters parents behaved poorly than that of the hybrids.

The PCR based RAPD analysis was used to study genetic relationship among roselle and kenaf access... more The PCR based RAPD analysis was used to study genetic relationship among roselle and kenaf accessions. Extraction of genomic DNA samples of nine roselle (Hibiscus sabdariffa L.) and seven kenaf (Hibiscus cannabinus L.) accessions were successfully performed by Cetyl Trimethyl Ammonium Bromide (CTAB) method. RAPD analysis using two chloroplast primers and one mitochondrial primer produced about 62 bands of different sizes. Most of the fragments were polymorphic where 2-3 fragments were monomorphic in each primer. Sixteen accessions were classified into two main groups A and B through dendogram generated using RAPD polymorphism. Five kenaf accessions were included in group A, whereas nine roselle accessions and two kenaf accessions were included in group B. A group was formed with a range of similarity coefficients of 0.5333 to 0.8780 having all roselle accessions. Bengkalis was different from Hibiscus sp but it was close to roselle accessions. Noonsoon was very close to roselle accessions having a range of jaccard similarity coefficients of 0.5000 to 0.6326. It was evident from jaccad similarity coefficient of 0.8780 that the roselle varieties UKMR 1 and UKMR 2 were genetically closer to each other. On the other hand, V36 and Thainung showed the highest similarity coefficient (0.7878) among kenaf accessions in group A. This study has successfully differentiated between two species by using chloroplast and mitochondrial markers which was due to high level of polymorphism. However, the chloroplast primers were more effective than M13 to study the genetic variation between roselle and kenaf.

Bangladesh Journal of Agricultural Research, 2013

Thirty genotypes collected from India, Burma, and Bangladesh were studied for thier genetic diver... more Thirty genotypes collected from India, Burma, and Bangladesh were studied for thier genetic divergence using Mahalanobi´s D2 and Rao´s canonical analysis. Altogether five clusters were formed. The pattern of distribution of genotypes into five clusters was random demonstrating that the geographical isolation might not be the only factor causing genetic diversity. Leaf length and sulfur content contributed predominantly towards genetic divergence. Cluster III recorded the highest means for number of leaves per plant, leaf length, bulb length, plant height, and bulb yield. The results obtained from D2 analysis were confirmed by canonical analysis. The genotype G12 showed highest mean performance for moisture content (88.49%), G13 for leaf length (39.06 cm), G15 for neck diameter at vegetative stage (11.21 mm), bulb length (49.09 mm), plant height (64.82 cm) and as well as bulb yield (13.17 t/ha), G19 for percent sulfur content (0.84) and G26 for number of leaves per plant (12), respec...

Agronomy, 2021

Grain legumes are important sources of proteins, essential micronutrients and vitamins and for hu... more Grain legumes are important sources of proteins, essential micronutrients and vitamins and for human nutrition. Climate change, including drought, is a severe threat to grain legume production throughout the world. In this review, the morpho-physiological, physio-biochemical and molecular levels of drought stress in legumes are described. Moreover, different tolerance mechanisms, such as the morphological, physio-biochemical and molecular mechanisms of legumes, are also reviewed. Moreover, various management approaches for mitigating the drought stress effects in grain legumes are assessed. Reduced leaf area, shoot and root growth, chlorophyll content, stomatal conductance, CO2 influx, nutrient uptake and translocation, and water-use efficiency (WUE) ultimately affect legume yields. The yield loss of grain legumes varies from species to species, even variety to variety within a species, depending upon the severity of drought stress and several other factors, such as phenology, soil ...

During the 2018-2019 Boro season (dry season), 70 rice genotypes were examined with alpha lattice... more During the 2018-2019 Boro season (dry season), 70 rice genotypes were examined with alpha lattice experimental design with the goal of measuring grain yield stability analysis. Results indicated that AMMI analysis explained 100% of the G×E variance, while captured 81.74% variance. Based on the GGE and AMMI analysis, the most stable and high yielding genotype was identified G41 followed by G22, G26, G58, G24 and G61. The AMMI 1 biplot analysis revealed that the first primary component of interaction (IPC1) factor was responsible for 64.2 % variation due to G × E interaction. On other hand, the second primary component (PC2) factor accounted for 35.8% variation of the G × E interaction. These two-primary component (PC1 and PC2), all together accounted for 100% variation of the G × E interaction. The contribution of G68 was highest to the interaction followed by G70, G58, G42, G61, G45, G38, G14, G33, G60, G53, and G9. Best environment analysis indicated that the ranking was Rajshahi &...

Journal of Agriculture and Food Sciences, 2019

The Open Agriculture Journal, 2019

Introduction:An experiment was conducted to study combining ability and heterosis for yield and r... more Introduction:An experiment was conducted to study combining ability and heterosis for yield and related traits in chili during November 2015 to September 2017.Materials and Methods:The experimental material consisted of six parents and their fifteen F1’s developed by half diallel mating design. Analysis of variance for combining ability exhibited significant General and Specific Combining Ability (GCA and SCA) effects for all the characters studied.Results:The SCA variance was higher than GCA variance for all the traits except ten fresh fruit weight, fruit length and fruit width indicating the predominance of non-additive type of gene action. The parents P1and P6were identified as the best general combiners and the hybrids P1×P6, P1×P4and P2×P5were identified as the best specific combinations for fresh fruit yield per plant and related traits. The hybrids P1×P6, P1×P4and P3×P6showed significant average heterosis and heterobeltiosis for fresh fruit yield per plant and its related tra...

Advances in Agriculture, 2017

The present investigation was carried out to estimate the genetic variability and character assoc... more The present investigation was carried out to estimate the genetic variability and character association. Significant differences were observed among the genotypes for all the 15 traits for 20 chili genotypes. The highest genotypic coefficient of variation and phenotypic coefficient of variation were found for ten edible fruit weight, number of fruits per plant, fruit yield per plant, ten dry fruit weight, fruit length, fruit width, and weight of seeds per fruit. High heritability coupled with very high genetic advance as per cent of mean was observed for ten edible fruit weight, ten dry fruit weight, fruit length, number of fruits per plant, and fruit yield per plant. Phenotypic correlation coefficient among different traits indicated that fruit yield per plant at green stage had significant and positive association with ten edible green fruit weight, number of primary branches, harvest duration, and first fruit maturity and significant negative correlation with days to first pickin...

Pollen fertility studies showed that flowers from the early flowering stage contain more fertile ... more Pollen fertility studies showed that flowers from the early flowering stage contain more fertile pollen (93.9-97.6 %) than later stage of flowering (68.9%). Pollen fertility percentage indicates development of anther. If the anthers are well-developed, the pollen fertility is expected to be high. The uninucleate stage is optimal for the culture of melon anthers, and these pollen stages appear in flower bud and anther with 4.5-5.0 mm and 1.9-2.0 mm length, respectively, in first week and 3.3-4.3 mm and 1.6-1.8 mm length, respectively, in the second week. This result indicates that flower and anther size reduces with increase in the age of the donor plant. In the early flowering stage, the plant produces larger flowers than at later stages. Among the three polysaccharides, lactose showed good effect on pollen division. The anther cultured in lactose supplemented MS medium produced the highest number of living anther per plate, number of living pollen per anther and dividing pollen per...

Journal of Central European Agriculture, 2010

An in vitro experiment was conducted to find out the optimum hormonal supplement and sucrose leve... more An in vitro experiment was conducted to find out the optimum hormonal supplement and sucrose level for the bulb production of Hippeastrum. Murashige and Skoog medium supplemented with different hormone concentrations of BAP (0.0, 2.0, 4.0, 6.0 and 8.0 mg/L) and CCC (0.0, 125, 250 and 500 mg/L) and sucrose levels (30, 60, 80, 90 and 110 g/L) were used in this study. Sucrose level at 90 g/L produced the maximum average weight as well as the highest regeneration percentage. The increasing rate of CCC increased the number and average weight of bulb. The maximum bulb formation observed in media supplement with 6.0 mg/L BAP and 500 mg/L CCC fortified with 90 g/L sucrose.

The genetic constitution of yield and its components of pumpkin were investigated using the diall... more The genetic constitution of yield and its components of pumpkin were investigated using the diallel analysis technique. A 6X6 full diallel cross combinations were developed and experiment was conducted to estimate the genetic information of thirteen quantitative characters including general combining ability (GCA) and specific combining ability (SCA) for yield and component traits. The variance due to GCA, SCA and reciprocal effects were significant for maximum characters. The higher magnitude of GCA than SCA variance for the characters suggested that the inheritance of these characters is predominantly governed by additive gene effects. The higher magnitude of SCA variance than that of GCA variance signified a predominant role of nonadditive gene action in the inheritance attributes. Good general combining ability for earliness, number of male and female flowers per plant, fruit diameter, single fruit weight, flesh thickness, number of fruits per plant, yield per plant, number of s...

Scientific Research and Essays, Jul 4, 2011

Jatropha curcas L is a multipurpose shrub and a member of the family Euphorbeaceae with several a... more Jatropha curcas L is a multipurpose shrub and a member of the family Euphorbeaceae with several attributes and considerable potential. The present review article discussed the reported recent research on the cultivation and utilization of various parts of jatropha plant for different applications. J. curcas L is a tropical plant that can be grown in marginal lands of low to high rainfall areas and can be used as a commercial crop. The plant can be used to prevent and/or control erosion, to reclaim land, grown as a live fence to protect agricultural fields from farm animals and can be planted as an alternate commercial crop. The plant produces many useful products, especially the seed, from which oil can be extracted; this oil can be used as a feed stock for biodiesel. The extracted oil can also be used for making soap, glue, dye, etc. The leaves, shoot latex, roots and seed oil has medicinal properties. The fruit exocarp (coat), seed shell and processed seed cake are rich in nitrogen, phosphorous and potassium and can be used as fertilizer. It could provide employment, save foreign exchanges, improve environment and develop the socioeconomic status of poor resource farmers in developing countries. Much more research is required about management of J. curcas as to know more about the potential of its products.

Bangladesh Journal of Agricultural Research, 2018

The present investigation was undertaken to analyze the antioxidant potential of sixteen differen... more The present investigation was undertaken to analyze the antioxidant potential of sixteen different potato genotypes. Eleven yellow fleshed potato genotypes namely Forza, Courage, Laura, Rosa Gold, Lady Rosetta, Cumbica, Asterix, Coronada, Granola, Cardinal and Diamant and five purple fleshed potato genotypes namely Jam Alu, KAC 10063, KAC 10064, KAC 10069, KAC 10097 were used as experimental materials. Total carotenoids, anthocyanin, phenolics, flavonoids, ascorbic acid and antioxidant activity in the above mentioned genotypes were determined to compare the antioxidant potentials of the genotypes. Analysis of above mentioned parameters resulted significant variation in their contents in both yellow and purple fleshed genotypes. The results indicate the purple fleshed genotypes showed significantly higher carotenoids, anthocyanin, flavonoids and total antioxidant activity than those of yellow fleshed genotypes. The findings also suggested the antioxidant activity of the genotypes pos...

South African Journal of Botany, 2021

Heat stress is one of the major abiotic stresses affecting the growth and yield-related character... more Heat stress is one of the major abiotic stresses affecting the growth and yield-related characters of wheat.
Using various genetic approaches we can develop heat tolerant wheat varieties in order to mitigate the effect
of heat stress on wheat production. Currently different strategies have been adopted to develop thermotolerance in wheat. Development of thermotolerant wheat varieties is one of the major steps toward the improvement of wheat yield against heat stress. For this purpose, it is important to have a complete and clear concept
of the morpho-physiological, biochemical and molecular mechanisms of heat tolerance in wheat. This review
may provide better knowledge about heat tolerance through discussing the morphological, physiological,
biochemical and molecular mechanisms of heat tolerance in wheat based on different parameters such as
grain filling duration, grain yield, leaf senescence, canopy temperature depression, photosynthesis, chlorophyll content, membrane thermostability, translocation of photo-assimilates, starch synthesis, antioxidant
response, protein synthesis and omics approaches.

Ann. Bangladesh Agric, 2008

... 1999. Genetic divergence in quality rice. Oryza. 36(1): 20-23. Basher, MK 2002. Genetic and m... more ... 1999. Genetic divergence in quality rice. Oryza. 36(1): 20-23. Basher, MK 2002. Genetic and morpho-physiological basis of heterosis in rice. Ph.D Thesis. Department of Genetics and Plant Breeding. BSMRAU, Gazipur. 92-95 pp. Belaj, A., Z. Satovic, L. Rallo and I Trujillo. 2002. ...

Purpose: To increase yield and quality of fruit vegetables under high pressure of soil-borne path... more Purpose: To increase yield and quality of fruit vegetables under high pressure of soil-borne pathogens, nematode, and unfavorable environments introducing vegetable grafting in agriculture are crucial. It also helps to reduce disease susceptibility and to increase tolerance against abiotic stresses. Findings: Grafting in vegetables is a centuries-old practice to improve yield through organic culture. It was introduced in USA and becoming more common in organic farming of vegetables. Vegetable grafting is popular practice in many European and North American countries, Japan, Korea, and China. Vegetable crops are exposed to many abiotic and biotic stress factors, including salinity, heat, heavy metals, excess trace elements, diseases, and pests, which have a significant effect on crop growth and productivity. Grafting is effective practices in solanaceous and cucurbitaceous vegetables to control soil-borne diseases including; Verticillium wilt, Fusarium wilt, and bacterial wilt, and ...

Agronomy, 2021

Abiotic stresses varyingly affect the grain composition and quality of food legumes. This paper i... more Abiotic stresses varyingly affect the grain composition and quality of food legumes. This paper is aimed at discussing the impact of abiotic stresses on the grain composition and quality of food legumes. As protein is the main grain constituent of food legumes for which it is being consumed by humans as a cheap protein source, abiotic stresses such as heat, cold, drought, salinity and heavy metals alter this grain protein content in different dimensions for different food legumes. Moreover, other valuable constituents such as starch, soluble sugar, oil, fatty acid and fiber content are affected differently by the abiotic stresses. The diverse impact of these abiotic stresses ultimately declines the grain quality and yield of food legumes. As food legumes play a vital role in the nutritional diet of millions of people in the world and are occasionally denoted as the meat of poor people, it is important to recognize that the sustainable production of food legumes, even under various e...

Advances in Biofuels and Bioenergy, 2018

Biodiesel derived from plant species has been a major renewable source of energy and has received... more Biodiesel derived from plant species has been a major renewable source of energy and has received global interest mainly due to climate change issue. It has increasingly received worldwide attention as a promising alternative fuel. Growing interest in biodiesel production from edible oil brings scarcity in food supply. To overcome this problem, utilization of non-edible oils could be explored. Non-edible oil as biodiesel feedstock impressed in many factors such as energy sustainability and independence in certain areas, especially in rural community, creating job opportunities, elevating environmental merits, and avoiding monoculture of fuel resources. The present chapter reviews several such potentials, including fatty acid methyl ester (FAME) or biodiesel production process of nonedible oil resources as biodiesel feedstock in SouthEast Asian geographical region. The SouthEast Asian countries fall in the tropical region of the world and have many species as non-edible oil, viz., jatropha, karanja, polanga, neem, rubber, and mahua. The oils derived from these species have shown considerable potential as biodiesel feedstock.

African Journal of Agricultural Research, 2017

Twenty one hybrids along with two check varieties of maize were assessed for genotype environment... more Twenty one hybrids along with two check varieties of maize were assessed for genotype environment interaction (GEI) and stability for selection of the best hybrid maize in three different Agro-Ecological Zones (AEZ) of Bangladesh during rabi season 2014/2015. The experiment was laid out in Randomized Complete Block Design with 3 replications. The additive main effects and multiplicative interaction (AMMI) model was used to analyze the genotype-environment interaction over three locations to select the hybrids having higher yield (yld) and other potential attributes. The mean sum of square for genotypes was highly significant for the studied characters. Similarly, environmental variances were also highly significant for all characters. Variances due to genotype × environment interaction were highly significant for cob length and thousand seed weight (TSW). AMMI Component 1 showed variation for TSW. But AMMI Component 2 and G×E (Linear) revealed insignificant variation for all the characters. The highly significant effects of environment indicated high differential genotypic response across the different environments. The environments of Gazipur (Ij=-1.42**) and Barisal (Ij=-0.068) were poor but Rangpur (Ij=1.49)) was a favourable environments due to positive environmental index for tested maize hybrids. Considering the mean, bi and S 2 di for all the parameters, it was evident that all the genotypes showed different response of adaptability under different environmental conditions. Among the hybrids , WL4×WL5, WL1×WL3, WL2×WL3, WL1×WL4 and the check NK 40 exhibited the higher grain yield; bi~1 and S 2 di~0 indicated that these hybrids were stable across the environment. All the hybrids showed insignificant values for regression coefficient and also deviation from regression except WL1×WL5. The AMMI biplot showed four grouping of genotypes having none of them, low yielding and unstable; one hybrid was low yielding but moderately stable; eight were high yielding and stable hybrids, and fourteen were high yielder but highly unstable.

Bangladesh Journal of Plant Breeding and Genetics, 2015

Twenty five advanced lines among them twelve lines obtained from the cross between Edible Podded ... more Twenty five advanced lines among them twelve lines obtained from the cross between Edible Podded Pea and IPSA Motorsuty-1, nine obtained from the cross between Local White and IPSA Motorsuty-3 and five parental lines were included to measure genetic diversity. The field experiment was conducted at the research farm, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh. Analysis of variance showed significant differences among the genotypes for all characters. Multivariate analysis based 14 agronomic characters indicated that the 26 genotypes fell into five distant clusters. Fifty percent germination was found to be contributed maximum towards the total divergence. The inter cluster (D² values) distance was maximum between cluster I and cluster II and intra-cluster distance was in cluster III. Cluster V comprising five genotypes, namely, G11, G14, G21, G22, G25 and scored first position for 50% germination, pod per plant, 100 green see...

Sains Malaysiana, 2015

The seeds of 6 × 6 half diallel progenies of Jatropha curcas were used to evaluate the effects of... more The seeds of 6 × 6 half diallel progenies of Jatropha curcas were used to evaluate the effects of genotypes (parents and their hybrids) on germination traits of jatropha at Universiti Kebangsaan Malaysia. Germination traits were varied significantly (p<0.01) among the seeds of hybrids and their parents. The germination was started at four days after planting and prolonged until 15 days. Seed germination varied from 58.06 to 92.76% among the parents and 53.43 to 98.96% among the hybrids. The highest germination was observed in the hybrid P 2 × P 4 and none of the hybrid or parent showed complete (100%) germination. The maximum GI (germination index) and SVI (seedling vigour index) were found in the hybrids P 1 × P 5 and P 1 × P 2 and the lowest in P 2 × P 4 and P 3 × P 6 , respectively. For most germination parameters parents behaved poorly than that of the hybrids.

The PCR based RAPD analysis was used to study genetic relationship among roselle and kenaf access... more The PCR based RAPD analysis was used to study genetic relationship among roselle and kenaf accessions. Extraction of genomic DNA samples of nine roselle (Hibiscus sabdariffa L.) and seven kenaf (Hibiscus cannabinus L.) accessions were successfully performed by Cetyl Trimethyl Ammonium Bromide (CTAB) method. RAPD analysis using two chloroplast primers and one mitochondrial primer produced about 62 bands of different sizes. Most of the fragments were polymorphic where 2-3 fragments were monomorphic in each primer. Sixteen accessions were classified into two main groups A and B through dendogram generated using RAPD polymorphism. Five kenaf accessions were included in group A, whereas nine roselle accessions and two kenaf accessions were included in group B. A group was formed with a range of similarity coefficients of 0.5333 to 0.8780 having all roselle accessions. Bengkalis was different from Hibiscus sp but it was close to roselle accessions. Noonsoon was very close to roselle accessions having a range of jaccard similarity coefficients of 0.5000 to 0.6326. It was evident from jaccad similarity coefficient of 0.8780 that the roselle varieties UKMR 1 and UKMR 2 were genetically closer to each other. On the other hand, V36 and Thainung showed the highest similarity coefficient (0.7878) among kenaf accessions in group A. This study has successfully differentiated between two species by using chloroplast and mitochondrial markers which was due to high level of polymorphism. However, the chloroplast primers were more effective than M13 to study the genetic variation between roselle and kenaf.

Bangladesh Journal of Agricultural Research, 2013

Thirty genotypes collected from India, Burma, and Bangladesh were studied for thier genetic diver... more Thirty genotypes collected from India, Burma, and Bangladesh were studied for thier genetic divergence using Mahalanobi´s D2 and Rao´s canonical analysis. Altogether five clusters were formed. The pattern of distribution of genotypes into five clusters was random demonstrating that the geographical isolation might not be the only factor causing genetic diversity. Leaf length and sulfur content contributed predominantly towards genetic divergence. Cluster III recorded the highest means for number of leaves per plant, leaf length, bulb length, plant height, and bulb yield. The results obtained from D2 analysis were confirmed by canonical analysis. The genotype G12 showed highest mean performance for moisture content (88.49%), G13 for leaf length (39.06 cm), G15 for neck diameter at vegetative stage (11.21 mm), bulb length (49.09 mm), plant height (64.82 cm) and as well as bulb yield (13.17 t/ha), G19 for percent sulfur content (0.84) and G26 for number of leaves per plant (12), respec...

Agronomy, 2021

Grain legumes are important sources of proteins, essential micronutrients and vitamins and for hu... more Grain legumes are important sources of proteins, essential micronutrients and vitamins and for human nutrition. Climate change, including drought, is a severe threat to grain legume production throughout the world. In this review, the morpho-physiological, physio-biochemical and molecular levels of drought stress in legumes are described. Moreover, different tolerance mechanisms, such as the morphological, physio-biochemical and molecular mechanisms of legumes, are also reviewed. Moreover, various management approaches for mitigating the drought stress effects in grain legumes are assessed. Reduced leaf area, shoot and root growth, chlorophyll content, stomatal conductance, CO2 influx, nutrient uptake and translocation, and water-use efficiency (WUE) ultimately affect legume yields. The yield loss of grain legumes varies from species to species, even variety to variety within a species, depending upon the severity of drought stress and several other factors, such as phenology, soil ...

During the 2018-2019 Boro season (dry season), 70 rice genotypes were examined with alpha lattice... more During the 2018-2019 Boro season (dry season), 70 rice genotypes were examined with alpha lattice experimental design with the goal of measuring grain yield stability analysis. Results indicated that AMMI analysis explained 100% of the G×E variance, while captured 81.74% variance. Based on the GGE and AMMI analysis, the most stable and high yielding genotype was identified G41 followed by G22, G26, G58, G24 and G61. The AMMI 1 biplot analysis revealed that the first primary component of interaction (IPC1) factor was responsible for 64.2 % variation due to G × E interaction. On other hand, the second primary component (PC2) factor accounted for 35.8% variation of the G × E interaction. These two-primary component (PC1 and PC2), all together accounted for 100% variation of the G × E interaction. The contribution of G68 was highest to the interaction followed by G70, G58, G42, G61, G45, G38, G14, G33, G60, G53, and G9. Best environment analysis indicated that the ranking was Rajshahi &...

Journal of Agriculture and Food Sciences, 2019

The Open Agriculture Journal, 2019

Introduction:An experiment was conducted to study combining ability and heterosis for yield and r... more Introduction:An experiment was conducted to study combining ability and heterosis for yield and related traits in chili during November 2015 to September 2017.Materials and Methods:The experimental material consisted of six parents and their fifteen F1’s developed by half diallel mating design. Analysis of variance for combining ability exhibited significant General and Specific Combining Ability (GCA and SCA) effects for all the characters studied.Results:The SCA variance was higher than GCA variance for all the traits except ten fresh fruit weight, fruit length and fruit width indicating the predominance of non-additive type of gene action. The parents P1and P6were identified as the best general combiners and the hybrids P1×P6, P1×P4and P2×P5were identified as the best specific combinations for fresh fruit yield per plant and related traits. The hybrids P1×P6, P1×P4and P3×P6showed significant average heterosis and heterobeltiosis for fresh fruit yield per plant and its related tra...

Advances in Agriculture, 2017

The present investigation was carried out to estimate the genetic variability and character assoc... more The present investigation was carried out to estimate the genetic variability and character association. Significant differences were observed among the genotypes for all the 15 traits for 20 chili genotypes. The highest genotypic coefficient of variation and phenotypic coefficient of variation were found for ten edible fruit weight, number of fruits per plant, fruit yield per plant, ten dry fruit weight, fruit length, fruit width, and weight of seeds per fruit. High heritability coupled with very high genetic advance as per cent of mean was observed for ten edible fruit weight, ten dry fruit weight, fruit length, number of fruits per plant, and fruit yield per plant. Phenotypic correlation coefficient among different traits indicated that fruit yield per plant at green stage had significant and positive association with ten edible green fruit weight, number of primary branches, harvest duration, and first fruit maturity and significant negative correlation with days to first pickin...

Pollen fertility studies showed that flowers from the early flowering stage contain more fertile ... more Pollen fertility studies showed that flowers from the early flowering stage contain more fertile pollen (93.9-97.6 %) than later stage of flowering (68.9%). Pollen fertility percentage indicates development of anther. If the anthers are well-developed, the pollen fertility is expected to be high. The uninucleate stage is optimal for the culture of melon anthers, and these pollen stages appear in flower bud and anther with 4.5-5.0 mm and 1.9-2.0 mm length, respectively, in first week and 3.3-4.3 mm and 1.6-1.8 mm length, respectively, in the second week. This result indicates that flower and anther size reduces with increase in the age of the donor plant. In the early flowering stage, the plant produces larger flowers than at later stages. Among the three polysaccharides, lactose showed good effect on pollen division. The anther cultured in lactose supplemented MS medium produced the highest number of living anther per plate, number of living pollen per anther and dividing pollen per...

Journal of Central European Agriculture, 2010

An in vitro experiment was conducted to find out the optimum hormonal supplement and sucrose leve... more An in vitro experiment was conducted to find out the optimum hormonal supplement and sucrose level for the bulb production of Hippeastrum. Murashige and Skoog medium supplemented with different hormone concentrations of BAP (0.0, 2.0, 4.0, 6.0 and 8.0 mg/L) and CCC (0.0, 125, 250 and 500 mg/L) and sucrose levels (30, 60, 80, 90 and 110 g/L) were used in this study. Sucrose level at 90 g/L produced the maximum average weight as well as the highest regeneration percentage. The increasing rate of CCC increased the number and average weight of bulb. The maximum bulb formation observed in media supplement with 6.0 mg/L BAP and 500 mg/L CCC fortified with 90 g/L sucrose.

The genetic constitution of yield and its components of pumpkin were investigated using the diall... more The genetic constitution of yield and its components of pumpkin were investigated using the diallel analysis technique. A 6X6 full diallel cross combinations were developed and experiment was conducted to estimate the genetic information of thirteen quantitative characters including general combining ability (GCA) and specific combining ability (SCA) for yield and component traits. The variance due to GCA, SCA and reciprocal effects were significant for maximum characters. The higher magnitude of GCA than SCA variance for the characters suggested that the inheritance of these characters is predominantly governed by additive gene effects. The higher magnitude of SCA variance than that of GCA variance signified a predominant role of nonadditive gene action in the inheritance attributes. Good general combining ability for earliness, number of male and female flowers per plant, fruit diameter, single fruit weight, flesh thickness, number of fruits per plant, yield per plant, number of s...

Scientific Research and Essays, Jul 4, 2011

Jatropha curcas L is a multipurpose shrub and a member of the family Euphorbeaceae with several a... more Jatropha curcas L is a multipurpose shrub and a member of the family Euphorbeaceae with several attributes and considerable potential. The present review article discussed the reported recent research on the cultivation and utilization of various parts of jatropha plant for different applications. J. curcas L is a tropical plant that can be grown in marginal lands of low to high rainfall areas and can be used as a commercial crop. The plant can be used to prevent and/or control erosion, to reclaim land, grown as a live fence to protect agricultural fields from farm animals and can be planted as an alternate commercial crop. The plant produces many useful products, especially the seed, from which oil can be extracted; this oil can be used as a feed stock for biodiesel. The extracted oil can also be used for making soap, glue, dye, etc. The leaves, shoot latex, roots and seed oil has medicinal properties. The fruit exocarp (coat), seed shell and processed seed cake are rich in nitrogen, phosphorous and potassium and can be used as fertilizer. It could provide employment, save foreign exchanges, improve environment and develop the socioeconomic status of poor resource farmers in developing countries. Much more research is required about management of J. curcas as to know more about the potential of its products.

Bangladesh Journal of Agricultural Research, 2018

The present investigation was undertaken to analyze the antioxidant potential of sixteen differen... more The present investigation was undertaken to analyze the antioxidant potential of sixteen different potato genotypes. Eleven yellow fleshed potato genotypes namely Forza, Courage, Laura, Rosa Gold, Lady Rosetta, Cumbica, Asterix, Coronada, Granola, Cardinal and Diamant and five purple fleshed potato genotypes namely Jam Alu, KAC 10063, KAC 10064, KAC 10069, KAC 10097 were used as experimental materials. Total carotenoids, anthocyanin, phenolics, flavonoids, ascorbic acid and antioxidant activity in the above mentioned genotypes were determined to compare the antioxidant potentials of the genotypes. Analysis of above mentioned parameters resulted significant variation in their contents in both yellow and purple fleshed genotypes. The results indicate the purple fleshed genotypes showed significantly higher carotenoids, anthocyanin, flavonoids and total antioxidant activity than those of yellow fleshed genotypes. The findings also suggested the antioxidant activity of the genotypes pos...