Journal of Food, Agriculture and Environment




Vol 19, Issue 1,2021
Online ISSN: 1459-0263


Monitoring mutagenic effectiveness and efficiency of gamma rays and sodium azide in breeding line of linseed: Implicating their roles in induction of chlorophyll mutations


Author(s):

Roshan Jahan, Ruhul Amin, Samiullah Khan

Recieved Date: 2020-10-02, Accepted Date: 2020-12-15

Abstract:

Since many decades, the plant breeders are enthusiastically engaged for utilizing the useful mutations for plant breeding and the systematic study ofinduced mutagenesis is vital in order to produce the genetic diversity in a variety of crops. Previously, several similar studies have been undertakenfor many cereal crops. Gamma rays and sodium azide were used to induce the chlorophyll mutations in a variety of linseed, Padmini. The seeds weretreated with four doses of gamma rays (50 Gy, 100 Gy, 150 Gy and 200 Gy) and four doses of sodium azide (0.1% SA, 0.2% SA, 0.3% SA and 0.4%SA). The combined treatments of gamma rays and sodium azide (50 Gy +0.1% SA, 100 Gy+0.2% SA, 150 Gy+0.3% SA and 200 Gy+0.4% SA) werealso given to compare their effectiveness. Chlorophyll mutants were found in M2 generation when seedlings were 15-25 days old. In mutationbreeding the basic parameters considered for the assessment of mutagenic potency of the mutagens are their effectiveness and efficiency. In view oftheir effectiveness and efficiency, frequency and spectrum of mutations are discussed. Therefore, we observed a broad spectrum of chlorophyllmutations in M2 generation. In the present study, maculata and xanthaviridis survived up to the maturity, however, albino, chlorina, tigrina and xanthawere found dead at the seedling stage. The highest frequency of chlorophyll mutations was perceived in combined treatments of gamma rays andsodium azide in contrast to their individual treatments. The effectiveness and efficiency were estimated based on chlorophyll mutations frequency.The main objective of the induced mutagenesis is to increase the yield of the several crops. However, linseed has been identified as a health improvingplant and used in many diseases. The importance of linseed is epitomized by its various uses in daily life as human food, animal feed and industrialapplications

Keywords:

Chlorophyll mutations,   gamma rays, linseed,   mutagenic effectiveness, efficiency,   sodium azide


Journal: Journal of Food, Agriculture and Environment
Year: 2021
Volume: 19
Issue: 1
Category: Agriculture
Pages: 61-67


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