Estimates of Genetic Variability, Heritability and Genetic Advance in Rice (Oryza sativa L.) Under Sodic Soil

The experiment was carried out to evaluate the genetic variability, heritability and genetic advance in rice under the sodic soil condition. Results revealed highly significant variations within parents and hybrids. The five characters viz., number of spikelet’s per panicle, grain per panicle, amylose content, flag leaf area and 1000-grain weight showed high estimates of heritability coupled with high estimates of genetic advance as well as less than one average degree of dominance and predictability ratio nearly one in F1 ’s. This indicated that the inheritance of these five characters was governed by additive gene action and the direct selection for these characters would be rewarding