Line X tester analysis stroy for estimating the combining ability revealed non-additive gene action for the expression of grain vield in greengram (Vigna radiata (L) Wilezek,) Parents Jawahar 45 and Bl showed the highest general combining ability effects. Additive gene action was found in the combinations Tix B1, TI X Jalagaun 781, T1 X GG 525 and Jawahar 45 X Jalagaen 781. Two combinations namely T1 x T51 and Jawahar 45 x Pusa Baisakhi mung were found to be associated with both additive as well as non-additive type of gene action. It is suggested that the parent Jawahar 45 may be used in hybridization programmes for increasing the grain yield in greengram.
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