Vol. 12, Issue 7 (2023)

Author(s):
Arvind Chauhan, Anju Arora, RK Panwar, SK Verma and Sonu Ambwani

Abstract:
In the present investigation, eight parents viz. ICCV88503, ICCV88506, ICCV88510, PG 5, IPC 09-50, IPC 97-29, GNG 2171 and ICC 1205 that were crossed in half diallel fashion to obtain twenty-eight F1 hybrids to estimate combining ability variances for five biochemical parameters related to cold tolerance and thirteen yield related traits. The genetic analysis findings indicated that the inheritance of all eighteen traits involves significant contributions from both additive and non-additive genetic components. However, the non-additive (sca) variance was notably higher than the additive (gca) variance for all traits, except for one biochemical trait (total soluble proteins), as well as four yield-related traits: days to 50% flowering, days to maturity, plant height, and biological yield per plant. This suggests that non-additive gene action predominates in these traits. Considering the parallel importance of both additive and non-additive genetic effects in determining the inheritance of different traits, it is recommended to simultaneously utilize both through the adoption of a biparental approach.