Key points are not available for this paper at this time.
The effects of temperature on root and shoot hydraulic conductances ( gshoot and groot ) were investigated for Quercus robur L. saplings. In a first experiment, conductances were measured with a High Pressure Flow Meter on excised shoots and detopped root systems. The groot and gshoot increased considerably with temperature from 0–50 °C. Between 15 °C and 35 °C, gshoot and groot varied with water viscosity. In a second experiment, the impact of temperature‐induced changes in groot on sapling transpiration ( E ) and leaf water potential (Ψ leaf ) was assessed. Intact plants were placed in a growth cabinet with constant air and variable soil temperatures. E increased linearly with soil temperature but Ψ leaf remained constant. As a consequence, a linear relationship was found between E and gplant . The results illustrate the significance of gplant for the stomatal control of transpiration and the significance of temperature for tree water transport.
Cochard et al. (2000) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: