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Effect of Gibberellic Acid on Germination and Initial Seedling Growth of Northern Red Oak

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Gibberellic acid (GA) reduced the stratification time required for 50 percent germination of red oak from nearly 7 weeks to less than 3 weeks. Seed respiration was similarly stimulated by GA. Seedling growth from GA-treated seeds depended on the degree of stratification and on the concentration of GA applied. In general, initial root elongation, stem height growth, and number of leaves per seedling were promoted by GA or stratification. Root growth increased with duration of stratification but was inhibited by GA treatments of fully stratified seeds. Forest Sci. 16:453-459.

Keywords: Quercus rubra L; pre-chilling; respiration; stratification

Document Type: Journal Article

Affiliations: Associate Professor in the Dep. of Forestry at the Ohio Agr. Research and Development Center, Wooster, Ohio, and in the School of Natural Resources, Ohio State Univ., Columbus

Publication date: December 1, 1970

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

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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