Thirty-four genotypes of soybean were evaluated under eight diverse environments to know the nature and magnitude of genotype x environment interaction and stability in performance for seed yield and eleven other characters. It was observed that G X E (linear) component was significant for all the characters except days to maturity, number of seeds/pod, harvest index, 100 seed weight and oil content, whereas pooled deviation, a non-linear component, was significant for days to 50% flowering, days to maturity, 100 seed weight, oil content and protein content. The results indicated that both linear and non-linear component of g x e interaction were responsible for the differences in the stability of genotypes observed. Among the 34 genotypes, six genotypes namely PK 416, VLS 47, Pb 1, PS 1042, CO 2 and PK 564 were found to be stable for seed yield and also for biological yield and days to 50% flowering. Further, two genotypes Alankar and PK 471 were found stable under favourable environments having high mean seed yield, b>1 and non-significant deviation from regression.
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