Heritability of Yield and Other Traits and Inter-Relationships Among Traits in F2 To F5 Generations of Three Rice Crosses

Heritability was estimated in nine rice populations (three crosses and three methods of selection). Heritability increased progressively from F2 to F6 generations. in general, by F6 almost all the characters in all the three crosses showed about 80% heritability with proportionate increase from generation to generation. The increase in heritability was maximum in early generations, i.e., F3 and F4 and less in later generations. in early generations, the breeder may depend on the characters having high heritability for advancing the lines.