Study of stability and adaptability in rice (Oryza sativa I.)

The mean squares due to genotypes, environments and Genotype x environment were found highly significant against all the characters. The linear interaction was significant for all the characters except panicle length and grain number panicle⁻¹ while non-linear G x E interaction was significant against all the characters. The magnitude of linear variance was significantly high against non-linear variance for panicle number plant⁻¹, grain length and 1000 grain weight. BM (Bidhanmoti)-1, BM-14 and BM-17 recorded very high grain yield and stable for grain yield and most of the component characters. BM-6, BM-9 and BM-18 were also stable for grain yield and for most of the component characters. But they had poor grain yield and below average regression coefficient.