GGE biplot analysis for grain yield of single cross maize hybrids under stress and non-stress conditions

摘要

In AMMI analysis environment main effect and genotype x location interaction were found significant. Significant differences in maize hybrids were observed for grain yield among the locations over the years both under stress and non-stress conditions. Among the four interaction principal component axes (IPCA) of GGE biplot, first two IPCA were significant explaining 75.89% variation. Hybrid, KDMI-15 x NEI-9202-B was found superior among all the hybrids over checks over all the locations. Other hybrids viz., CM-111 x HYD SEL-15 and CI-4 x NEI-9202-B exhibited almost no interaction with the environments convincing the reliability of their performance. The hybrids viz., KDMI-15 x NEI-9208-B, CM-111 x HYD SEL-17, 900M, CML-446 x HYD SEL-4, CI-4 x HYD SEL-17, HYD SEL-7 x KDMI-15 and HYD SEL-15 x HYD SEL-17 were most responsive.