Vol. 12, Issue 11 (2023)

Author(s):
Nilesh Parmar, GO Faldu, AO Sanghani, Ritaben R Patel and HR Ramani

Abstract:
The prime objective of this study was to the estimate the general combining ability of the parents and specific combining ability of hybrids for the development of high yielding cultivars in cotton (Gossypium hirsutum L.). A line x tester analysis was carried out by using three Bt parental lines and ten testers and their resulting 30 hybrids along with one check during kharif, 2020. Randomized block design with three replications. Whereas, both GCA and SCA variances were found significant for bolls per plant, ginning outturn, seed index, which indicated that both additive as well as non-additive types of gene actions were important in the inheritance of these traits. The estimates of GCA effects of parents indicated that the GSHV 95/216, SCS 1062, BB-1 and GTHV 02/45 were good general combiner. The crosses G. ot 16 BG II x GSHV 172, G. Cot 16 BG II x GTHV 02/45, BC 68-2 BG II x GTHV 02/45, G. Cot 10 BG II x GSHV 95/216 and G. Cot 10 BG II x H 1452 were found promising hybrids having high SCA effects for seed cotton yield per plant.