Indian Society of Genetics & Plant Breeding

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REPORT OF SOME LEAF PHENOTYPE MUTANTS IN BRASSICA /UNCEA L. COSS. &. CZERN VARIETY RLM 198

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Chemical mutagenesis of seeds with 0.5% EMS has yielded some leaf shape mutants
in Brassica juncea L. Coss. & Czem. variety RLM 198. These mutants are designated
as 51 type (simple leafl, dil type (deeply incised lobe) and G type. Morphological
characteristics of these mutants are discussed in this paper. The F2 data suggests
the involvement of two genes in 51 type and only one in G type mutants. Significance
of such chemically induced leaf shape mutations in the same species are discussed
in terms of understanding the generation of leaf as well as plant forms. Also since
these mutants develop different canopy structures their importance in attaining a
suitable plant type in Brassica is also discussed.

Keywords: Brassica, EMS, leaf shape, mutant

Info

Year: 1998
Volume: 58
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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