Stability analysis of grain yield and maturity in maize hybrids under mid hill conditions of North Western Himalayas

Abstract

Fifteen Genotypes of maize were grown in experiment to study the effect of environment of the preference of genotypes as for as their grain yield was concerned. This study comprised of fifteen experimental hybrids and was grown for three successive growing seasons during Kharif 2104, 2015 and 2016. Significant genotype, genotype x environment and genotype + (genotype x environment) interactions in grain yield was indicative of variable performance of genotypes under different seasons. Out of 15 genotypes three genotypes UDMH 121, UDMH 114 and UDMH 128 could match the requirement of having average stable genotypes with an average yield of 70.35, 71.52 and 71.24 q/ha respectively. Remaining single cross hybrids seemed to be considerably influenced by Genotype x Environment interactions encountered at the tested locations and location specific selection has to be made while selecting a maize hybrid for a particular location. The study was carried out over the years and in future locations can be added to make more environment specific recommendations.