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Auxin Inhibition of Epicormic Shoots in White Oak

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Experiments with auxins to inhibit bud development were conducted on Quercus alba L. stem sections cut from young sprout clumps. Indoleacetic, indolebutyric, and naphthaleneacetic acids were equally effective in reducing the number of epicormic branches, when applied at 1 percent concentration in lanolin to the top, cross-sectional surface of the severed bolts. Bud inhibition increased as the concentration of indoleacetic acid was increased from 0 to 1 percent. The differences in response of stem sections among sprout clumps substantiate results of other experiments indicating that the tendency for epicormic branching is genetically controlled to a substantial degree.

Document Type: Journal Article

Affiliations: Professor of Silviculture, School of Forest Resources, The Pennsylvania State University

Publication date: 1968-06-01

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.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 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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