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Comparison of Field Techniques for Measuring Moisture Stress in Large Loblolly Pines

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In lobolly pine (Pinus taeda L.) oleoresin exudation pressure (OEP) was highly correlated with relative water content (RWC) of needles and water potential (WP) of twigs as measured by the pressure-chamber technique. Oleoresin exudation flow was correlated poorly with RWC and WP and not at all with OEP. The manometric technique of measuring OEP is a convenient and inexpensive way to estimate water stress in large loblolly pines. Forest Sci. 17:220-223.

Keywords: Pinus taeda; oleoresin exudation pressure; plant water stress

Document Type: Journal Article

Affiliations: Principal Soil Scientist, Forest Insect Research Project in Pineville, La., is maintained by the Southern Forest Exp. Sta., USDA Forest Serv.

Publication date: June 1, 1971

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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