National Academy of Agricultural Sciences (NAAS)
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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 2018: 95.39 NAAS RATING 2020: 5.38 |
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.
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