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Notes: Estimating Relative Water Content of Leaves Without Oven Drying

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If leaf fresh weight and fully turgid weight are measured, then relative water content can be estimated using an estimate of oven dry weight based on the average ratio of oven dry over turgid weights previously determined for that species. The error in estimated relative water content of a leaf is shown mathematically to depend on (1) the difference between average ratio and the true oven dry over turgid weight ratio for the leaf, and (2) the true relative water content. Field measurements on leaf samples of four tree species showed that the expected error can be quite small, provided that procedures are properly standardized. Forest Sci. 20:101-103.
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Keywords: Leaf water content; oven dry/turgid weight ratio

Document Type: Miscellaneous

Affiliations: Research Scientist, Forest Research Branch, Ontario Ministry of Natural Resources, Maple, Ontario, Canada

Publication date: 1974-03-01

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.

    2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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