Combining Ability Studies in Rice (Oryza sativa L.) under Coastal Saline Soil Conditions

摘要

Combining ability study of yield contributing and salt tolerance related physiological parameters from the diallel analysis of eight well adopted and salt tolerant varieties under saline soil conditions revealed higher sea variance than gca variance for all the characters studied except for yield reduction per cent, suggesting the significant role of non-additive gene action for majority of the parameters. The genotypes CSRC(S)5-2-2-5, SR26B and CSRC(S)7-1-4 were the good combiners for yield and itsattributing as well as salt tolerance related traits . The hybrids SR26-B x CST-7-1, RPBio-226 x CSR-30 and CSR-27 x CSRC(S)5-2-2-5 were adjudged as potential hybrids for yield coupled with salt tolerance.