Vol. 11, Issue 12 (2022)

The genetic improvement of any crop mainly depends on the amount of genetic variability present in the population. To explore this variability, an effort was made to classify, understand the nature and magnitude of genetic variability among 95 rice genotypes for 27 yield and yield contributing traits. Analysis of variance revealed a wide and significant variation for all the 27 traits studied. A perusal of genetic parameters viz., phenotypic and genotypic coefficients of variation revealed less influence of environment on the characters under study for both two seasons and locations. Therefore, response to direct selection may be effective in improving these traits. All the characters under study for both the locations exhibited high heritability except alkali spreading value which showed lowest heritability: Implying that these characters were under control of additive gene action and direct selection of these traits would be effective for crop improvement.