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The present study was undertaken to evaluate eleven maize hybrids including one check under three different locations of Jammu and Kashmir spreading over different agro-climatic zones during Kharif-2016 for stability parameters with respect to grain yield and other related traits. Analysis of variance was highly significant for hybrids. The mean squares due to environments was also significant for all the traits except Cob height (cm) indicating that the environments selected were random and were different in agro-climatic conditions. Interaction of genotypes with the environment (G  E) was observed to be significant for all the traits, which revealed linear response of the genotypes to environmental changes. Thus the genotypes differed considerably for stability for the traits under investigation over the locations. The variance due to environment (linear) was significant for all the characters indicating that environmental effects were additive. The pooled deviation was also significant for all the traits indicating that non-linear component of hybrid × environment interaction was predominant. Based on the stability parameters of Eberhart and Russell (1966) model, hybrids H2, H4, H5 and H7 had higher mean performance. Highest mean performance for Grain Yield (qha-1) with bi and S2di non-significant was observed in H2 (81.55 q/ha) which was surpassing the check SMH-1 (76.22) by 7 % which indicated that the hybrid was found promising in all environments.
Keywords: Maize, Hybrids, Genotype x Environment Interaction, Additive, Environment, Hybrids, Stability, Regression.