Indian Society of Genetics & Plant Breeding

INDUCED MUTATIONS IN HOMOZYGOUS AND HETEROZYGOUS GENOTYPES OF TOBACCO

Published on

A comparative study of frequency and spectrum of chlorophyll and morphological
mutations induced by EMS in homozygous genotypes of chewing tobacco (Nicotiana
tabacum L.) was made. Higher frequency (10.34%) of morphological variants was
observed in homozygous treated material (Ml) than heterozygous (7.84%) treated
material (FlMl). Six types of chlorophyll and ten types of morphological mutants were
isolated in M2 generation. Frequencies of chlorophyll and morphological mutants were
higher (1.27 and 2.07% respectively) in treated heterozygous (F2M2) material as compared
to treated homozygous (0.87 ad 1.47% respectively) material (M2). Glazed leaf mutant
holds promise for higher recovery of first grade leaves.
 

Keywords: Tobacco (Nicotiana tabacum), chlorophyll & morphological mutations, frequency & spectrum.

Info

Year: 2000
Volume: 60
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

info_circle

Download PDF