Genotype × Environment Interaction Studies in Colored Capsicum (Capsicum annum L. var. grossum Sendt.)

Abstract:

The present investigation was carried out in three diverse environments. The experiments were laid out in a completely randomized block design with three replications at each location. The observations were recorded on various yield and yield attributing traits. Analysis of variance for the individual and over environments revealed highly significant differences among genotypes for all the traits under study. The Environment E1 was the most favorable environment for the expression of almost all traits. The pooled analysis of variance for stability revealed significant variation among genotypes for all traits. The mean sum of squares due to environments and Environments (linear) component of variance were significant for all traits except flesh thickness. The linear component of genotype × environment was significant only for plant spread, number of fruits plant-1, average fruit length, fruit diameter, pedicel length, number of seeds fruit-1, average fruit yield plant-1,average fruit yield plot-1, average seed yield plant-1 and average seed yield plot-1. The estimates of regression coefficients for fifteen genotypes exhibited a wide range. The genotypes viz. SH-SP-1, SH-SP-2, SH-SP-4, SH-SP-7, SH-SP-14 and SH-SP-16 showed stable performance over environments for most of the traits under study.