Genetic studies for quantitative traits and resistance to bacterial wilt in brinjal (Solanum melongena L.)

Abstract

Eleven diverse genotypes of brinjal along with twenty four F1s developed in line x tester fashion were evaluated for genetic variability, correlation and path coefficient for yield, its contributing traits and resistance to bacterial wilt. High estimates of genotypic coefficient of variation, heritability and genetic advance as percent of mean for fruit yield, fruit weight, fruit length and fruit breadth indicated presence of additive gene action and suitability of these characters for further improvement by selection. Days to 50% flowering, number of branches/plant, plant height and percent plant survival against wilt have recorded preponderance of non additive gene action. Fruit yield showed positive significant association with fruit length, number of branches/plant, plant height and percent plant survival against wilt and negative association with fruit breadth. Path analysis revealed that fruit breadth followed by plant height and percent plant survival against wilt had highest direct effect on fruit yield.