Summary
Optimum mutation rates for practical purpose were discussed based on the theoretically derived formulae, and mutagen doses giving the optimum mutation rates were estimated from the experiments reported hitherto. It was suggested that in cereal crops such as rice and barley, considerably low mutation rates as with the mutagen doses lower than 5 kR of λ or X rays and 2%·h of EMS are appropriate for obtaining directly applicable mutants. High mutation rates seem to be limited to the production of some rare breeding stocks.
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Yonezawa, K., Yamagata, H. On the optimum mutation rate and optimum dose for practical mutation breeding. Euphytica 26, 413–426 (1977). https://doi.org/10.1007/BF00027003
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DOI: https://doi.org/10.1007/BF00027003