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Mutagenic Effectiveness and Efficiency in [Vigna unguiculata (L.) Walp.] Variety Phule Phandari (PP) and VCM-8

DOI: 10.18805/IJARe.A-5597    | Article Id: A-5597
K.D. Savant savantkd@gmail.com
Address : Rajarshi Shahu Mahavidyalaya (Autonomous), Latur- 413 512, Maharashtra, India.
Submitted Date : 8-05-2020
Accepted Date : 8-10-2020

Abstract

Background: Mutation breeding is one of the cheapest and surest method of plant breeding. In mutation breeding program effectiveness and efficiency of mutagens could be helpful to realize the spectrum of desirable mutations in the treated populations. The effectiveness and efficiency of two mutagens EMS and gamma rays were studied in two varieties of cowpea [Vigna unguiculata (L.)Walp.]. 
Methods: In the present investigation, the seeds of two varieties of cowpea, phulepandhari and VCM-8 were treated with gamma rays and EMS to obtain the spectrum and frequency of chlorophyll mutations in M2 generation. Mutagenic effectiveness and efficiency were calculated using frequency of chlorophyll mutations.
Result: The individual treatment of EMS was found to be more efficient than gamma rays to induce chlorophyll mutants. A progressive increase in mutation frequency of chlorophyll mutations was observed with increasing doses. Four different types of chlorophyll mutants, such as, chlorina albina, xantha and viridis were induced with effect of mutagens. The highest frequency of chlorophyll mutations was reported in the gamma rays. There was a dose dependent increase in the spectrum and frequency of chlorophyll mutations. The lower dosages of gamma rays and EMS were proved to be most effective and efficient.  Among two mutagens used EMS was much more effective than gamma rays in both the varieties viz.  variety phulepandhari and VCM-8

Keywords

Chlorophyll mutants Effectiveness Efficiency Gamma rays LD50 Mutagens

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