Analysis of combining ability and gene action for seed yield and biochemical traits in pigeonpea [Cajanus cajan (L.) Millspaugh]

Abstract

Information on magnitude of combining ability and gene action were obtained for seed yield and biochemical attributes; involving twelve parents and their 32 F1 hybrids along with a commercial hybrid check ‘ICPL-87119’ of pigeonpea in randomized block design with three replications. The magnitude of sca variance was higher than gca variance for all the traits revealed preponderance of non-additive gene action for all the traits. The estimation of gca effects indicated that parents viz., RKPV-702-16, RKPV-807, RKPV-808 and ICPL-8039 were good general combiner for seed yield and biochemical attributes. The estimation of sca effects indicated that hybrids, viz., RKPV-702-16 x ICPL-88039, RKPV-705 x ICPL-88039, RKPV-807 x PA-291, RKPV-808 x UPAS-120 and RKPV-821-01 x ICPL-88039 were exhibited high heterosis coupled with high sca effects also.