1University of Agriculture Sciences, Raichur, 584 104, Karnataka
2All India Coordinated Research Project on Maize, Main Agricultural Research Station, University of Agriculture Sciences, Dharwad, 580 005, Karnataka
Department of Genetics and Plant Breeding, College of Agriculture, Bheemarayanagudi, 585 287, Karnataka
*Corresponding author's e-mail: prakashkuchanur@yahoo.co.in
Online published on 9 November, 2015.
In AMMI analysis environment main effect and genotype × 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 × NEI-9202-B was found superior among all the hybrids over checks over all the locations. Other hybrids viz., CM-111 × HYD SEL-15 and CI-4 × NEI-9202-B exhibited almost no interaction with the environments convincing the reliability of their performance. The hybrids viz., KDMI-15 × NEI-9208-B, CM-111 × HYD SEL-17, 900M, CML-446 × HYD SEL-4, CI-4 × HYD SEL-17, HYD SEL-7 × KDMI-15 and HYD SEL-15 × HYD SEL-17 were most responsive.
G × E interactions, biplot, multienvironment trial, AMMI analysis
