Author(s):

Barad HR, Delvadiya IR, Sapara GK, Dobariya Kl and Parmar RS

Abstract: The experimental material consisting of 101 entries comprised of ten parents and their 45 hybrids and 45 F₂s developed through half diallel mating design and one standard check (GCH 7) were evaluated in a randomized block design with three replications. The analysis of variance for combining ability revealed that general combining ability (GCA) and specific combining ability (SCA) variances were significant for all the eleven characters in both the generations reflecting the importance of both additive and non additive genetic variances for controlling these traits. The ratio of σ²GCA/σ²SCA was more than unity for effective length of primary raceme in F₁ generation, while for the rest of the characters the ratio was less than unity in both the generations. Among the parents, PCS 124, JI 353 and JI 368 in F₁ generation and JI 353 and DPC 17 in F₂ generation exhibited good general combining ability effect for seed yield per plant. The highest yielding hybrid JI 368 x RG 2787 in F₁ generation and DPC 17 x SKI 343 in F₂ generation had also registered significant positive sca effect for seed yield per plant in both the generations.

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