Abstract

                                It is necessary to break up the observed variability in phenotypic expression into its heritable and non-heritable components in order to fully assess the exact contribution of environment in producing the sum total effect ie. the phenotypic. Brown Sarson (Brassica campestris) offers a great deal of variability and to the best of the knowledge of the authors, the variability has not been exploited in this crop. An attempt has, therefore, been made in the present investigation to break up the variability into its components with the hope that the result might be of use to the plant breeders in doing plant selection.

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