GENETIC VARIABILITY ANALYSIS FOR VARIOUS YIELD ATTRIBUTING AND QUALITY TRAITS IN RICE (O. SATIVA L.)

Abstract

The analysis of variance was found to be highly significant for all the 13 Quantitative and 19 Quality traits in rice indicating that enough variability is present in the studied material. Among the desirable quantitative traits grain yield per plant (30.52%; 31.18%), filled grain per panicle (26.05%; 26.86%), were found to have high GCV and PCV while alkali spreading value (49.55%; 49.90%), gel consistency (42.72%; 43.67%), water uptake (24.59%; 25.33%) showed high GCV and PCV among quality traits of rice. Almost all the characters showed a little variation between PCV and GCV revealing little influence of the environment in the expression of these traits. The characters showing high GCV and PCV were found to be highly heritable coupled with high genetic advance.

These characters are governed by additive gene action and one should go for direct selection for these traits.