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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(7): 1825-1834
DOI: https://doi.org/10.20546/ijcmas.2017.607.220


Induced Macromutational Spectrum and Frequency of Viable Mutants in M2 Generation of Rice (Oryza sativa L.)
Manikandan* and C. Vanniarajan
Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Madurai, Tamil Nadu Agricultural University, Tamil Nadu, 625 104, India
*Corresponding author
Abstract:

The present study was conducted to know the frequency and spectrum of viable mutations after irradiation and revealed that viable mutation frequency was high on M1 plant basis than M2 seedling basis in gamma rays, electron beam and recurrent treatment. Electron beam gave higher frequency of viable mutants than gamma rays. The spectrum of viable mutants included a total of 286 mutants of gamma rays, 516 in electron beam and 153 mutants in recurrent treatment dose in ADT - 37. In ADT - 45, a total of 235 mutants in gamma irradiated population and 455 mutants in electron beam treated population and 159 mutants recurrent treatment dose were observed. Economic mutants such as plants possessing earliness, lodging resistance, grain size and high yielding mutants were isolated in the present study. A wide spectrum of viable mutants was observed in electron beam than gamma rays in both the genotypes used. The variety ADT - 37 had more number of viable mutants than ADT - 45. Electron beam was found to be effective than Gamma rays in inducing chlorophyll and viable mutants.


Keywords: Viable mutants,Electron beam, Gamma rays, Recurrent mutation.
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How to cite this article:

Manikandan, V. and Vanniarajan, C. 2017. Induced Macromutational Spectrum and Frequency of Viable Mutants in M2 Generation of Rice (Oryza Sativa L.).Int.J.Curr.Microbiol.App.Sci. 6(7): 1825-1834. doi: https://doi.org/10.20546/ijcmas.2017.607.220