Free-Energy Transfer in Plants
- 14 March 1969
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 163 (3872), 1219-1220
- https://doi.org/10.1126/science.163.3872.1219
Abstract
Free-energy transfer was used to study water transport through the soil-plant system. Resistances to free-energy transfer are proportional to resistances to water transfer. Under certain conditions, the proportionality factor is 1. For a sunflower plant in moist soil, plant resistance to free-energy transfer was 30 times the soil resistance, and root-stem-leaf resistances were in a ratio of about 2 : 1 : 1, respectively. However, root and sidered for a unit pathlength.Keywords
This publication has 10 references indexed in Scilit:
- Relationship of Water Potential to Growth of LeavesPlant Physiology, 1968
- Negative transport & resistance to water flow through plantsPlant Physiology, 1961
- DYNAMIC ASPECTS OF WATER AVAILABILITY TO PLANTSSoil Science, 1960
- Osmosis and Diffusion in Tissue: Half-times and Internal Gradients.Plant Physiology, 1958
- The mechanism of water absorption by roots I. Preliminary studies on the effects of hydrostatic pressure gradientsProceedings of the Royal Society of London. B. Biological Sciences, 1957
- The mechanism of water absorption by roots II. The role of hydrostatic pressure gradients across the cortexProceedings of the Royal Society of London. B. Biological Sciences, 1957
- Permeability of Avena Coleoptile Sections to Water Measured by Diffusion of Deuterium Hydroxide.Plant Physiology, 1956
- ROOT RESISTANCE AS A CAUSE OF DECREASED WATER ABSORPTION BY PLANTS AT LOW TEMPERATURESPlant Physiology, 1940
- Root Resistance as a Cause of the Absorption LagAmerican Journal of Botany, 1938
- ROOT RESISTANCE AS A CAUSE OF THE ABSORPTION LAGAmerican Journal of Botany, 1938