Tamil Nadu Agricultural University, Coimbatore-3.
The genotypic and phenotypic variability present in 30 exoitic and indegenous varieties of radish was evaluated utilizing the parameters like phenotypic and genotypic coefficient of variation, heritability and genetic advance. The phenotypic and genotypic coefficient of variation, heritability in board sense, and GA as percentage of mean were all high in three characters viz., weight of root, top and whole plant indicating the predominance of gene effects and less of environmental influence.