Estimation of the genetic potential of parents and crosses for yield component traits in blackgram [Vigna mungo (L.) Hepper] through combining ability analysis
Blackgram is the grain legume crop mainly grown in variable edaphic and weather conditions in India resulting in less productivity. However, the yield of blackgram can be improved by breeding methods involving potential parents by analysing the combining ability. A set of three female parents (CO 5, CO 6 and ADT 5) and six male parents (MASH 1008, VBN 6, VBN 8, VBN 9, VBN 10 and VBN 11) were used as parents. The crosses were synthesised in Line × Tester fashion and they were evaluated along with parents for ten quantitative characters. The gene action controlling the traits and combining ability of the parents and crosses were analysed. The preponderance of non-additive gene action was observed for all the traits studied. The parents, CO 5 and VBN 11 were found to have significant positive general combining ability effect (gca) for yield and its component traits. The crosses, CO 5 × VBN 8, CO 5 × VBN 11 and ADT 5 × VBN 10 showed a significant specific combining ability effect (sca) for single plant yield. Among the crosses, CO 5 × VBN 8 was identified as the best cross on the basis of sca, per se performance, gca status of parents and heterosis for yield and yield component traits. For single plant yield, CO 5 × VBN 11 performed well for all the above parameters. Hence, these two crosses could be exploited for recombination breeding to improve yield.
Keywords: Blackgram, combining ability, gene action and heterosis.
Estimation of the genetic potential of parents and crosses for yield component traits in blackgram [Vigna mungo L. Hepper] through combining ability analysis. 2023. Electronic Journal of Plant Breeding, 14 2, 480-486. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/4702
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