Combining ability analysis for yield and yield attributes characters in Brinjal (Solanum melongena L.)

Abstract

Combining ability analysis was done in dialle analysis by using 8 parents and 28 F1’s in a randomized block design with two replications. Analysis of variance for combining ability revealed that variances due to gca and sca were significant for all the traits. GCA and SCA interacted significantly. The estimates of dominance variance were higher in magnitude than corresponding estimates of additive variance indicating the preponderance of non-additive gene action. None of the parents exhibited desirable gca effects for all the traits simultaneously. Parents DRNKVO-2-26 identified as good general combiners for fruit yield per plant and most of the attributes including seed weight per fruit, average fruit weight and fruit length. The cross, DRNKVO-2-26 x JB-15, Arbha Kranti X Rajendra brinjal, and Aruna X DRNKVO-2-26 were good specific combiner for grain yield and various yield components. These parents may be used for varietal improvement through the simple recurrent selection in segregating generations to increase in fruit yield potentiall of brinjal. This may lead in the fixation of both additive and non-additive components while making improvement in fruit yield and its attributes.