Genotype x environment interaction and stability analysis for yield and its components in brinjal (Solanum melongena)

Yield and its components were studied for genotype x environment interactio n and stability parameters in 15 genotypes of brinjal over 3 years during 1 994-96. Wide difference among genotypes, environments and genotype x enviro nment interaction were observed for all the traits. Significant linear and nonlinear components of genotype-environment interaction were recorded for yield and number of fruits/plant, while the predictable portion alone was s ignificant for average fruit weight. Adaptability of brinjal genotypes for general cultivation and high-yielding environments were identified. Signifi cant positive correlations were noticed between mean performance and regres sion coefficient for yield and number of fruits/plant; mean performance and deviation from regression for average fruit weight and between regression coefficient and deviation from regression for average Fruit weight and numb er of fruits/plant.