Indian Society of Genetics & Plant Breeding

Important

INDUCTION AND ISOLATION OF MORPHOLOGICAL MUTATIONS IN DIFFERENT MUTAGENIC DAMAGE GROUPS IN LENTIL (LENS CULINARIS MEDIK)

Published on

Seeds of a large seeded lentil cv., Precoz Selection, were treated with three doses each
of gamma rays, ethylene imine (EI) and N-nitroso-N-ethyl urea (NEU). Based on the
frequency of morphological mutations, the mutagens were arranged in the order; NEU
> EI> gamma rays. Different damage groups induced morphological mutations in the
order : HH > HL > LH > LL. The morphological mutations induced changes for
growth habit (compact, bushy and prostrate), foliage (narrow, broad, curly, laciniata
and tendrillar), plant height (tall and dwarf), and maturity and flowering behaviour
(early, late and sterile). A mild relative mutagenic specificity, and differences in
mutability of genes for different traits were observed. In general, the spectrum of
morphological mutations was not influenced by the groups of Ml damage, except that
some mutation types occurred more frequently than others (quantitative difference) in
certain groups.
 

Keywords: Morphological mutations, mutation frequency & spectrum, lentil

Info

Year: 1999
Volume: 59
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

info_circle

Download PDF