Stability analysis for yield and related traits over four environments in wheat (Triticum aestivum L.)

Abstract

This Experiment was conducted with seventeen genotypes of wheat for ten quantitative traits in two date of sowing during Rabi-2016-17 viz., 18th Nov. (normal sown as E1) and 18th Dec. (Late sown as E2) and again in Rabi-2017-18 sown on 20th Nov. (normal sown as E3) and 20th Dec. (late sown as E4) at Agriculture research farm, Institute of Agricultural Sciences, Banaras Hindu university, Varanasi. The significant variations due to genotypes against pooled error revealed the presence of genetic variability for all the traits under study. The component G × E interaction being highly significant indicated that genotypes interacted considerably to environmental conditions in different environments. For yield per plant the genotypes, HUW 234 exhibited at par value with the population mean, bi near to unity and non-significant deviation from regression line(S2di), showing that genotype was stable under all environments. However, none of the genotypes were found to show stable performance as per days to 50% flowering, grain filling duration seeds/plants and 1000 grain weight. © 2019 Plant Archives. All rights reserved.