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Authors
Affiliations
1 Department of Genetics and Plant Breeding, University of Agricultural Sciences, Raichur, Karnataka, IN
Source
Asian Journal of Bio Science, Vol 8, No 1 (2013), Pagination: 25-27
Abstract
Mutagenic effectiveness and efficiency of gamma rays were studied in the four inbreds of sunflower. Gamma rays produced high frequency as well as a wide spectrum in mutation. The frequency of mutation was high at higher dose of mutagen. The mutagenic effectiveness and efficiency was calculated based on biological damage. In M1 generation based on seed lethality and pollen sterility and M2 generation was carefully screened for various chlorophyll and viable mutation. Mutagenic effectiveness and efficiency reduced with the increase in dose or concentration. In present investigation higher dose of 20kR was very effective and efficient in induction of mutation in all the genotypes studied except CMS- 104B where 15 kR dose was effective and efficient.
Keywords
Gamma Rays, Effectiveness, Efficiency, Sunflower
References
- Amano, E. and Smithh, H.H. (1965). Mutation induced by EMS in Maize. Mut. Res., 2: 344-351.
- Amano, E. (1968). Comparison of EMS and radiation–induced waxy mutant in Maize. Mut. Res., 5: 41-46.
- Goud, J.V. (1967). Induced polygenic mutations in hexaploid Wheats. Radiat. Bot., 7: 321-331.
- Gustafsson, A. (1940). The mutation system of chlorophyll apparatus. Lunds univ. Abst., 36: 1-40.
- Konzak, C.F., Wagne, J. and Legaut, R.R. (1965). Effectiveness and efficiency of radiations for inducing genetic and cytogenetic changes., F.A.O/IAEA, tech. meeting on the use of induce mutation in plant breeding. Rome., Radiat. Bot., (Suppl.)
- Sparrow, A.H. and Woodwell, G. M. (1962). Prediction of sensitivities of plants to chronic gamma irradiation. Radiat. Bot., 2: 9-26.
- Swaminathan, M.S., Chopra, V.L. and Bhaskaran, S. (1962). Chromosome aberrations, the frequency and spectrum of mutations induced by EMS in barley and wheat. Indian J. Genet., 22: 190-207.
- Wang, P. Y. and Yu, B.S. (1991). Preliminary study on gamma rays for growing plants in soybean. Soybean Genet. Newsl., 18: 82-85.
