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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(7): 484-493
DOI: https://doi.org/10.20546/ijcmas.2019.807.059


Effectiveness and Efficiency of Different Doses of Physical Mutagen (γ- rays) in Clusterbean [Cyamopsis tetragonoloba (L.) Taub.] Genotypes
Jaya Rathore*, A.K. Singh and S.V.S. Chauhan
Department of Genetics and Plant Breeding, College of Agriculture, RVSKVV, Gwalior, India
*Corresponding author
Abstract:

In the present investigation, the mutagenic effectiveness and efficiency of different doses of a physical mutagen (gamma rays) were studied in clusterbean (Cyamopsis tetragonoloba (L) Taub) genotypes (viz. GST-15-204, RGC-1066, RCG-1055, RGC-1038. Ten different doses of gamma rays (viz. 5kR, 10kR, 15kR, 20kR, 25kR, 30kR, 35kR, 40kR 45kR and 50kR) were applied to. mutagenised the seeds of cluster bean genotypes. The effectiveness and efficiency was determined by accounting lethality and sterility in M1 generation of mutagenized seeds and frequency and spectrum of chlorophyll mutations in M2 generation. Four types of chlorophyll mutants albino, xantha, chlorina and viridis were screened in M2 generation. It has been observed that the frequency of mutations increased with increasing doses of mutagen. Though the highest mutation frequency was noticed in 50kR dose of gamma rays, the mutagenic effectiveness and efficiency was decreased with increased doses of gamma rays. Thus, the lower doses of mutagen like gamma rays were observed to be more effective and efficient than the higher doses of gamma rays in all four clusterbean genotype.


Keywords: Cluster bean, Mutagen, Mutagenic effectiveness, Mutagenic efficiency, Mutation frequency
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How to cite this article:

Jaya Rathore, A.K. Singh and Chauhan, S.V.S. 2019. Effectiveness and Efficiency of Different Doses of Physical Mutagen (γ- rays) in Clusterbean [Cyamopsis tetragonoloba (L.) Taub.] Genotypes.Int.J.Curr.Microbiol.App.Sci. 8(7): 484-493. doi: https://doi.org/10.20546/ijcmas.2019.807.059