Oxygen enhancement ratios (OERS) for somatic mutations in tradescantia stamen hairs

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.