Analysis of combining ability for seed yield and its related traits in soybean [Glycine max (L.) Merrill]

The present investigation entitled “Analysis of combining ability effect in soybean [Glycine max (L.) Merrill] was carried out at Agricultural Research Station, Ummedganj, Kota during kharif 2020 and 2021. The material for the present investigation comprised fifteen genotypes of soybean were selected on the basis of their diverse pedigree, growth habit, phenology and adaption were crossed with three testers in Line x Tester fashion to analysed the combining ability for seed yield and its related traits in soybean. Analysis of variance revealed significant differences among genotypes, crosses, lines, testers and line x tester interactions for most of the traits. Preponderance of non-additive gene effects was realized from higher values of specific combining ability compared to general combining ability and ratio of variances of SCA to GCA. The parents showed high GCA can be used for the future hybridization programmes. The GSC estimates of lines and testers emphasized the importance of lines AUKS 212, RVSM 2011-35, RKS 18 and tester SL 958 for their use as a desirable parents for enhancing the yield potential through assembling the favourable genes for seed yield and yield components. The crosses which showed high SCA effect could be used for the hybrid development. The high yielding crosses viz., AUKS 113 X SL 958, RVSM 2011-35 x NRC 138, AUKS 199 x JS 20-34 and NRC 135 x JS 20-34 were found to be the superior for seed yield and yield component and should be further tested across the different environment for their stability performance.