Studies on Genetic Variability, Heritability, Genetic Advance for Yield, and Yield Components in Rice Landraces

An investigation was carried out to study the variability, heritability, and genetic advance as per cent of mean for yield and yield components in 100 rice landraces along with four checks at Regional Agricultural Research Station, Maruteru during Kharif, 2021. Analysis of variance revealed significant differences among the landraces for all the characters indicating sufficient genetic variation in the experimental material under study. The studies on variability, heritability, and genetic advance as per cent mean revealed small differences between GCV and PCV that were recorded for all the characters studied, indicating less environmental influence on these characters. Moderate levels of PCV and GCV, high heritability coupled with high genetic advance as per cent of mean were recorded for plant height, panicle length, grain yield, plant, and test weight indicating the effectiveness of simple selection in the improvement of these traits.