Abstract

Oxygen enhancement ratios (OERs) were determined for pink mutations in stamen hairs of Tradescantia clone 02. These were determined for X-rays (OER of 3·2) and neutrons at six energies ranging from 0·395 to 13·4-MeV (OERs ranging from 1·32 to 1·68). Unlike RBE, OER values showed only a slight dependence on neutron energy and were not found to vary as a function of dose. Our results appear consistent with OERs generally reported from other systems, but at certain energies do not agree with results previously reported for Tradescantia .

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