STABILITY AND GENOTYPES x ENVIRONMENT INTERACTION ANALYSIS USING BIPLOTS IN WHEAT GENOTYPES

Highly significant effects due to environments, genotypes and genotype x environment interaction were observed during evaluation of 12 wheat genotypes across 17 environments in the central zone in India. The environmental effect explained larger proportion (68.5%) of total variation followed by genotype x environment interaction effect (15.2%) and marginally by genotype effects (2.5%). Interaction effect partitioned into four significant interaction principal components with respective contributions as 33.7, 18.3, 15.2 and 9.6%, respectively. Biplots based on AMMI analysis identified G3(GW 451), G9 (GW 322), G4(Hl 8750) and G11 (HI 8498) as the stable genotypes and E12 (Rewa), Ell (Bhopal), El (Anand) and E13 (Sagar) environments contributed largest to interaction effects. GGE biplot analysis pointed out G5 (MP 3382) as ideal genotype followed by G3 (GW 451).