Stability for Fruit Yield and its Component Traits in Brinjal (Solanum Melongena L.)

The present investigation was carried out to study stability performance over three consecutive seasons for fruit yield and its components in 48 hybrids derived by crossing 16 genetically diverse genotypes (12 lines + 4 testers) of brinjal using line x tester mating design. The partitioning of environments + (genotypes x environments) mean squares showed that environments (linear) differed significantly and were quite diverse with regards to their effect on the performance of the genotypes for fruit yield and majority of yield components. Stable genotypes were identified for wider environments and specific environments with high per se performance (over general mean and check hybrid, GBH 1) for fruit yield per plant. It is evident from the information that seven hybrids viz., JBSR 98-2 x Pant Rituraj, ABL 89-1 x Pant Rituraj, ABL 98-1 x GBL 1, Morvi 4–2 x GBL 1, Sel. 4 x Pant Rituraj, Morvi 4–2 x PLR 1 and Green Round x GBL 1 were found stable and widely adapted with high mean performance, average responsiveness (bi $ 1) for fruit yield per plant and could be utilized for variable environments. A perusal of the results on environmental index for various traits under different environments also suggested variable response of the seasons to the different traits studied. Kharif and rabi seasons were observed to be most congenial for fruit yield per plant.