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Science 20 November 1959:
Vol. 130. no. 3386, pp. 1407 - 1409
DOI: 10.1126/science.130.3386.1407
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Articles

Effect of Ultraviolet Pretreatment on Yield of Mutations by X-rays in Wheat

M. S. SWAMINATHAN 1 and A. T. NATARAJAN 1

1 Botany Division, Indian Agricultural Research Institute, New Delhi

A decrease in the yield of chromosomal aberrations in root meristems of wheat induced by four different doses of x-rays has been found to occur when the seeds are pretreated with ultraviolet radiation. However, in X2 generation, the mutation rate for combined treatment is lower than for x-rays alone in lower dosages and higher than for x-rays alone in higher dosages.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)