Relationship Between Genetic Make-Up and Phenotypic Stability in Cotton (Gossypium Hirsutum)

Major role of environmental effect was indicated by higher magnitude of environmental variance. Linear component G×E(1) and nonlinear component played important role for seed cotton yield per plant. Only nonlinear component (pooled deviations) was found to be responsible for plant height and number of sympodia per plant. Only linear component was found significant for number of bolls per plant. Heterozygotes were observed to be more adaptable than homozygotes. Prediction for performance of genotypes on the basis of relative magnitude of two variances for number of sympodia per plant, number of bolls per plant and seed cotton yield per plant is indicated.