The Components of Leaf Water Potential III. Effects of Tissue Characteristics and Relative Water Content on Water Potential

Abstract

A theoretical treatment suggests that osmotic, matric, and pressure potentials (1T, 7, andP) and their sum the water potential (.p) for any relative water content (R) can be calculated if three quantities that characterize the tissue are known: the sum of osmotic and matric potentials at full turgor (1Tt + 7t), bound water content as a proportion of total water content at full turgor (B), and coefficient of enlargement (e) .