Skip to main content
PMC home page
Plant Physiology logoLink to Plant Physiology
. 1968 Jun;43(6):973–978. doi: 10.1104/pp.43.6.973

Effects of Changing Stomatal Width in A Red Pine Forest on Soil Water Content, Leaf Water Potential, Bole Diameter, and Growth

Neil C Turner 1, Paul E Waggoner 1
PMCID: PMC1086956  PMID: 16656870

Abstract

Spraying a 16 meter tall stand of red pine (Pinus resinosa Ait.) with 10−3 m phenylmercuric acetate in early June and again in mid-July resulted in the water use between June 1 and October 25 being reduced by almost 10%. It was demonstrated that this was caused by an increase in the leaf resistance with partial stomatal closure, which reduced absolute water potential in the needles by 1 to 3 bars in the middle of the day. Smaller demands were made upon the reserves of water in the bole of the tree as shown by the smaller bole contraction in the treated trees. Although needle length and dry weight were unaffected by the spray, radial growth was reduced by approximately 32%. The dependence of leaf resistance on light intensity is shown, and its independence from leaf water potential discussed.

Full text

PDF
974

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Boyer J. S. Leaf water potentials measured with a pressure chamber. Plant Physiol. 1967 Jan;42(1):133–137. doi: 10.1104/pp.42.1.133. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Scholander P. F., Bradstreet E. D., Hemmingsen E. A., Hammel H. T. Sap Pressure in Vascular Plants: Negative hydrostatic pressure can be measured in plants. Science. 1965 Apr 16;148(3668):339–346. doi: 10.1126/science.148.3668.339. [DOI] [PubMed] [Google Scholar]
  3. Shimshi D. Effect of Chemical Closure of Stomata on Transpiration in Varied Soil and Atmospheric Environments. Plant Physiol. 1963 Nov;38(6):709–712. doi: 10.1104/pp.38.6.709. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Waggoner P. E., Bravdo B. A. Stomata and the hydrologic cycle. Proc Natl Acad Sci U S A. 1967 Apr;57(4):1096–1102. doi: 10.1073/pnas.57.4.1096. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Wallihan E. F. Modification and Use of an Electric Hygrometer for Estimating Relative Stomatal Apertures. Plant Physiol. 1964 Jan;39(1):86–90. doi: 10.1104/pp.39.1.86. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Zelitch I. BIOCHEMICAL CONTROL OF STOMATAL OPENING IN LEAVES. Proc Natl Acad Sci U S A. 1961 Sep;47(9):1423–1433. doi: 10.1073/pnas.47.9.1423. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Zelitch I., Waggoner P. E. EFFECT OF CHEMICAL CONTROL OF STOMATA ON TRANSPIRATION OF INTACT PLANTS. Proc Natl Acad Sci U S A. 1962 Aug;48(8):1297–1299. doi: 10.1073/pnas.48.8.1297. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Plant Physiology are provided here courtesy of Oxford University Press

RESOURCES