Synergism between EMS and X-rays for the Induction of Somatic Mutations in<i>Tradescantia</i>

SummaryThe induction of pink and colourless mutations in the stamen hairs of the Tradescantia clone KU9 has been studied following exposure of cuttings with inflorescences to X-rays, ethylmethane sulphonate (EMS) and combinations of the radiation and chemical mutagen. The results demonstrate a synergistic interaction between the radiation and the chemical mutagen for both somatic mutations. Such synergism has implications for acceptable levels of radiation exposure and needs further investigation.

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