| A very high frequency of amber and awned mutants in Yaqui-50 suggests that both these
terminally located genes get deleted from the chromosome with a very high frequency which
leads to the production of amber mutants, awned mutants and amber and awned
mutants. On the basis of comparable frequencies of amber awnless and red awned mutants (terminally located) in the M2 generation, it may be postulated that all the genes which are terminally located, can get deleted by physical mutagens in equal proportions. To test this hypothesis work is under progress which will be published elsewhere. Yield performance of amber awnless, red awned and amber awned mutants of Yaqui-50 as compared to the parent variety is yet to be tested. Seeds of these mutants are available for distribution. Literature Cited BANSAL H.C., R.P. SHARMA and P.N. NARULA 1972. Induced mutations for amber grain color in two varieties of Wheat. Wheat Inf. Serv. 33-34: 13. JAIN, H.K., R.N. SAWHNEY D. SINGH and B.C. JOSHI 1970. Induction of earliness and grain colour mutation in wheat variety Nadadores. Wheat. Inf. Serv. 30: 13 VARUGHESE, G. and M.S. SWAMINATHAN 1967. Sharbati Sonara, a symbol of the age of algeny. Indian Fmg. 17(5): 8-9. |
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