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Plant water status, hydraulic resistance and capacitance

  • Roger T. Koide
  • Robert H. Robichaux
  • Suzanne R. Morse
  • Celia M. Smith
Chapter

Abstract

Many excellent reviews have been written about plant water status and its measurement (e.g. Slaty er, 1967; Barrs, 1968; Boyer, 1969; Brown and van Haveren, 1972; Slavik, 1974; Turner, 1981). The reader is referred to these sources for a more complete review, particularly of the older literature. In this chapter, our major goals are to introduce the reader to the concept and measurement of plant water potential and its components, and then to discuss the consequences of gradients in these components within the plant. First, we describe the most commonly used techniques for measuring the water potential of higher plants growing under field conditions, specifically the psychrometric and pressure chamber techniques. Second, we describe methods for measuring the components of water potential, particularly turgor pressure and osmotic potential, and water content.

Keywords

Water Potential Relative Water Content Pressure Chamber Leaf Water Potential Hydraulic Resistance 
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© Chapman and Hall 1989

Authors and Affiliations

  • Roger T. Koide
  • Robert H. Robichaux
  • Suzanne R. Morse
  • Celia M. Smith

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