Auxin Inhibition of Epicormic Shoots in White Oak
Abstract: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
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