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    Author(s): Jerry Tecklin; Douglas D. McCreary
    Date: 1991
    Source: In: Standiford, Richard B., tech. coord. 1991. Proceedings of the symposium on oak woodlands and hardwood rangeland management; October 31 - November 2, 1990; Davis, California. Gen. Tech. Rep. PSW-GTR-126. Berkeley, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 48-53
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (325 KB)

    Description

    Field performance was evaluated for blue oak (Quercus douglasii Hook. & Am.) acorns of different size classes (weights) and from different trees which produced predominantly small, medium, or large acorns. Emergence, height, and survival were monitored for two growing seasons. A parallel evaluation, mainly of root characteristics, was conducted in an observation growth box. Acorn size significantly influenced emergence, survival, and height the first year, and influenced height growth the second year. Large acorns produced taller seedlings with heavier total root weight. Acorn size also affected other variables in a significant manner. Parent tree influence was significant for some variables but not for height growth.

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    Citation

    Tecklin, Jerry ; McCreary, Douglas D. 1991. Acorn Size as a Factor in Early Seedling Growth of Blue Oaks. In: Standiford, Richard B., tech. coord. 1991. Proceedings of the symposium on oak woodlands and hardwood rangeland management; October 31 - November 2, 1990; Davis, California. Gen. Tech. Rep. PSW-GTR-126. Berkeley, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 48-53

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