EVAPORATION, TRANSPIRATION AND OXYGEN CONSUMPTION BY ROOTS

Abstract

Controlled exps. with shoots in culture solutions showed that the rate of O2 consumption by the root of willow is indirectly affected by the light relations of the shoot, and may be directly affected by the temp. of the solution. There appears to be no positive relation between transpiration rate and rate of oxygen absorption by the root. There may be a direct relation between evaporating power of air, as revealed by the B/W atmometer readings, and rate of O2 consumption.