Genotype x environment interaction in soybean (Glycine max L.)
2003
Paul, P.K. | Alam, M.S.E. | Rahman, L. | Hassan, L. | Paul, S.K. (Bangladesh Agricultural Univ., Mymensingh (Bangladesh). Dept. of Genetics and Plant Breeding)
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.
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