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Notes: Age Distribution of Needles in Red Pine Crowns

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Three Pinus resinosa tree crowns were analysed to determine the weight distribution of different aged needles. The trees differed in their crown development and little similarity between their comparable whorls was evident. Younger needles always predominated in the upper crown, older ones in the less virgorous lower levels with the maximum weights of each age class and total foliage being in the middle crown.

Document Type: News

Affiliations: Research and Development Officer, Timber Research and Development Assn., Tylers Green, High Wycombe, Buckinghamshire, England

Publication date: 1966-09-01

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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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