Vol. 11, Issue 10 (2022)

Author(s):
Kulsoom Jafri, Geeta Rai, Singh HC and Akhilesh Mishra

Abstract:
An experiment consisting 8 parents diallel crosses excluding reciprocals were evaluated at Oilseeds Research Farm of C. S. Azad University of agriculture and technology, Kanpur during Rabi season of 2020-21 to evaluate the combining ability and gene action for grain yield and its components in field pea. The result indicated that non- additive type of gene action was more than that of additive type of gene action for most of the characters. Average degree of dominance also indicated presence of over dominance for most of the characters. The general combining ability with negative value for characters were observed in viz., the parent KPMR 400, KPMR 522, KPMR 940 for days to flowering, RACHNA, KPMR 522 for days to maturity, KPMR 400, SAPNA, KPMR 913 for short height of plant. GCA with positive value were observed in the parents viz., SHIKHA, KPMR 522 for branches per plant, RACHNA, KPMR 940 for pods per plant, KPMR 940 for grains per pod, KPMR 400, KPMR 522, KPMR 940 for 100 seed weight, KPMR 940, KPMR 522 for grain yield per plant, KPMR 940 for biological yield per plant, KPMR 522 for harvest index. The significant and desirable SCA effect for grain yield per plant were observed in crosses SWATI x KPMR 400, SHIKHA x KPMR 913, SWATI x KPMR 940, RACHA X KPMR 940.