PRELIMINARY CHARACTERIZATION OF SOME PHYSIOLOGICALLY IMPORTANT MUTANTS IN BRASSICA /UNCEA L. COSS. and CZERN. VARIETY RLM 198

Abstract

This is a preliminary report of some ~S induced morphological mutants in Brassiea juneea variety RLM 198. In this paper we report mutants in which the angle formed by the primary branches to the main shoot was 50"10 less than control plants. Such mutants can be used for obtaining higher plant population in the field which is not possible with existing higher yielding cultivars. We report some 'Early flowering' mutants in which flowering was advanced by 20 days increasing the effective seed filling duration. Total seed weight per siliquae increased by 78"10 over control. We also report 'waxy' mutants in which SEM studies revealed thick waxy deposits on leaf surface and some variants that show branching from the base.