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Morphological and Chemical Differences Between Sapwood, Discolored Sapwood, and Heartwood in Black Locust and Osage Orange

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A comparison was made of morphological and chemical differences between sapwood, discolored sapwood (wound-initiated discolorations), and heartwood in Maclura pomifera (Raf.) Schneid. and Robinia pseudoacacia L. The heartwood and discolored sapwood in the vicinity of wounds differed significantly in color, water content, frequency of amorphous deposits, percentage of material soluble in water (hot and cold) and 1% NaOH, ash content, and pH. Hence, when the living cells of the sapwood die as a result of mechanical injury of a type which results in discolored tissue, this tissue, while similar in appearance to heartwood, is not synonymous with heartwood.

Document Type: Journal Article

Affiliations: Assistant Professor, Department of Botany and Plant Pathology, Michigan State University, East Lansing

Publication date: September 1, 1968

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  • 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.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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