Author(s):

V Koul and SK Mondal

Abstract: The present study entitled, “Stability analysis of heat tolerant bread wheat (Triticum aestivum L.) genotypes” was carried out at Research farm of Sher-e-Kashmir university of Agricultural Sciences and Technology, Jammu during Rabi 2016-17 to evaluate the performance of 20 heat tolerant bread wheat genotypes under three different dates of sowing i.e. Early, Normal and Late in a Randomized Block Design with three replications having a plot size of 0.75 x 1.5 m. The analysis of variance revealed that the mean sum of squares due to environment was found to be significant for twelve traits under study. Mean sum of squares due to genotype was found to be significant for all the traits except for No. of effective tillers/plant, Grain yield/plant, Canopy temperature depression and Chlorophyll content. Environment and Genotype x Environment E + (G x E) component of variance tested against pooled error was found to be significant for all the traits except Grain filling duration and Chlorophyll content. The mean performance for grain yield/plant under early, normal and late sowing conditions which ranged from 12.54-25.44 g, 9.94-21.4 g and 4.13-9.8 g respectively, with an overall mean of 18.98, 15.5 and 6.68 g under early, normal and late sowing respectively.

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