Diallel analysis in Rajmash

Combining ability study was carried out through a 10 × 10 diallel set of rajmash (Phaseolus vulgaris L.) for seed yield and its component characters. The analysis of variance revealed significant differences among the parents and their crosses for all the traits. The variance due to GCA and SCA were significant for all the traits studied, which showed importance of both additive and non-additive gene components in the inheritance of these traits. The parents ‘SKUA-R-607’, ‘SKUA-R-609’ and ‘SKUA-R-106’ showed high combining ability for yield and most of the yield attributing traits. The best cross combinations in order by merit for seed yield were ‘SKUA-R-106’ × ‘SKUAR- 153’, ‘Shalimar Rajmash-1’ × ‘SKUA-R-608’, ‘SKUA-R-607’ × ‘SKUA-R-153’, ‘SKUA-R-602’ × ‘Shalimar Rajmash-1’ and ‘SKUA-R-609’ × ‘SKUA-R-23’.