Gamma rays and sodium azide induced variations in bio-physiological and agronomical traits in linseed ( L.).

Heliyon

Mutation Breeding Laboratory, Department of Botany, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India.

Published: June 2024


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Article Abstract

Linseed is a valuable oilseed crop with huge therapeutic importance due to its high content of omega-3 fatty acids in the form of Alpha-linolenic acid (ALA). It is a self-pollinated crop with a low-yielding potential that restricts its improvement endeavors. To overcome low-yielding potential, individual and combination treatments of gamma rays and sodium azide were employed in widely grown linseed varieties. The results revealed a dose-dependent decline in seed germination, seedling height, pollen fertility, chlorophyll, and carotenoid contents and a dose-independent decline in carbonic anhydrase activity. Bio-physiological parameters decreased substantially in combination treatments compared to individual treatments of gamma rays and sodium azide. In contrast, lower doses of gamma rays, sodium azide, and their combinations effectively increased mean values of yield and yield-attributing traits in a few putative mutants. Such putative mutants represent a valuable genetic resource that could be used in future breeding programs for the genetic improvement of linseed and related medicinal plants.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11153108PMC
http://dx.doi.org/10.1016/j.heliyon.2024.e31329DOI Listing

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