The present investigation was conducted during kharif, 2000 at Plant Breeding Farm, RCA, Udaipur. Experimental material comprised of ten parents and 45 hybrids (adopting half diallel) raised in RBD with three replications in two environments (first-control; second-seed treated with
Pooled analysis of variance for combining ability revealed that mean squares due to GCA & SCA was significant for all the characters, which indicated both additive and non-additive gene action played role in the inheritance of these traits. Interaction of GCA and SCA with environment was significant number of pods per plant, number of seeds per pod, seed yield per plant and biological yield, indicating that GCA & SCA effects for these traits were influenced by the environments, whereas number of pods per plant only SCA effects were influenced by the environments. The ratio of 2SCA/2GCA was greater than one for all the characters studied, there by indicating the preponderance of non-additive gene effects in the inheritance of all the characters.
Estimates of GCA effects indicated that parents RBU 38, RBU 59 and RUD 79 were good general combiner for most of the traits. The crosses T9 x BGU 54, 99-U-27 x RUD 59, RBU 59 x RBU 38 and RBU 28 x RBU 38 were best specific combiner for various characters. The implications the various findings for genetic improvement with high seed yield have also been suggested.
Phenology, pods, environment, traits, etc
