Vol. 11, Issue 1 (2022)

Author(s):
Sanjay T Rathod, Vishnu K Gitte, Mohan V Dhuppe, Santosh B Borgaokar and Shailesh Gawande

Abstract:
The set of 67 genotypes using 8 x 8 diallel mating design including reciprocals, eight genetically diverse parents and three checks were evaluated. The data were recorded for ten traits. The analysis of variance revealed highly significant differences due to genotypes for all the characters except 1000-seed weight. The parent vs hybrid sum of squares was significant for all the traits excluding plant height, number of branches per plant, length of capsule and 1000-seed weight indicating the presence of heterosis in the genotypes used. Based on mean values, the parents TBS-10, TBS-105, and TBS-7 recorded maximum seed yield per plant. TBS-10, TBS-3 and TBS-7 were top ranking for number of branches per plant and number of capsules per plant. These parental genotypes also expressed good performance for various yield components, viz., plant height, the number of capsules per plant, length of capsule, 1000-seed weight and oil content. The parent V-29 found better for earliness, length of capsule, number of seeds per capsule and oil content. While, hybrids including reciprocals TBS-7 x V-29, R-09 x V-29, TBS-10 x R-09, TBS-105 x R-09, TBS-105 x V-29, R-20 x TBS-105, TBS-10 x V-29, V-29 x TBS-12, TBS-10 x TBS-12 and TBS-7 x R-20 were the best for seed yield per plant. The total of 20 F₁ and 10 reciprocal F₁ crosses while 17 F₁ and 8 reciprocal F₁ crosses had revealed significant positive better and standard heterosis respectively for seed yield per plant. Among the crosses TBS-10 x R-09, TBS-105 x R-09, TBS-7 x R-20, TBS-7 x TBS-12 and TBS-7 x R-09 were top ranking crosses (F₁s and their reciprocals) manifested highly significant and desirable heterosis for seed yield and other component traits over better parent and standard check (AKT-101).