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Articles by L. Rahman
Total Records ( 3 ) for L. Rahman
  P.K. Paul , M.S.E. Alam , L. Rahman , L. Hassan and S.K. Paul
  The soybean genotype were evaluated under different environment (Sowing dates) to determine the genotype x environment interaction vis-a-vis stability over a wide range of environment. The genotype, environment and genotype x environment interactions differed significantly for all studied characters. Considering the yield and yield contributing characters and using three stability parameters viz., phenotypic index greater than zero, regression co-efficient around unity (b = 1.0) and least deviation from regression (non-significant S2d). The lines BS-60, BS-15 and BAU-23 were found stable for plant height. The lines C.O.-1 and SAO-Luiz were identified most suitable for number of pods per plant. In case of number of seeds per pod the genotypes BAU-23 and BS-15 were observed stable but the genotype BS-12, Sohag and TGX-843, were found stable for percentage of pod per plant but the lines BS-60 and AGS-160 were found stable for 100-seed weight. It was revealed that lines BS-60 and TGX-843 were found stable for most of the characters. It is therefore suggested that the identified stable genotypes with respect of different characters might be used in breeding programme to transmit desirable trait (s) to develop stable genotype of Soybean.
  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. R. Islam , M. A. Quddus and L. Rahman
  Seven varieties of Brassica campestris were tested for germination percentage, days to germinate and plant height under different salinity levels of soil. The variations due to salinity levels, varieties and variety x salinity were significant for different characters. The regression coefficient estimates (curve estimation) indicated variable degrees of increase or decrease in performance as influenced by different salinity levels. The performance of the variety Safal in germination percent is the best followed by Tori-7, Sampad and Kallyania. Safal showed the best performance in days for germination followed by Sonali, Sampad and Dholi. Dholi and Sonali performed better than others in respect of plant height. Considering all the characters the performance of Sonali, Sampad and Dholi is much better than others against different levels of salinity.
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