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Effects of Applied Abscisic Acid and Plant Water Stress on Transpiration of Woody Angiosperms

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A 10+ACY-sup-4+ADs- M solution of (+ACY-plusmn+ADs-) abscisic acid (ABA) was applied to the leaves of five plants each of three species of woody angiosperms. Transpiration of treated plants decreased, presumably as a result of stomatal closure. Water loss of Acer saccharum seedlings was reduced more rapidly than water loss of Fraxinus americana seedlings, but less rapidly than that of Citrus mitis. In Fraxinus, one ABA application reduced transpiration for 21 days. Applied ABA acted as a nontoxic metabolic antitranspirant. Transpiration of Citrus mitis and Acer saccharum was more sensitive to decreases in plant water potential than was transpiration of Fraxinus americana. Forest Sci. 21:191-195.

Keywords: Acer saccharum; Citrus mitis; Fraxinus americana; Stomata; antitranspirant

Document Type: Journal Article

Affiliations: A J. Riker Professor of Forestry, Dept. of Forestry, University of Wisconsin, Madison, Wisconsin 53706

Publication date: June 1, 1975

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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