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Root Regeneration and Early Growth of Red Oak Seedlings: Influence of Soil Temperature

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One-year-old northern red oak (Quercus rubra) nursery stock was grown in a greenhouse at various day/night soil temperature regimes for 4 weeks. No single optimum soil temperature for root growth was evident, but roots grew well at constant 24°C, and some aspects of root growth decreased at 18 and 29°C. Shoot growth was good at 29° soil temperature but was greatly reduced below 18° even though air temperatures remained favorable. Seedling growth responded to the total daily degree hours of soil heat rather than to the differential between day and night temperature. In a second experiment, seedlings were pretreated, with roots at 24° and tops at 2°C. Seedlings pretreated 1 week grew more roots and shoots than did seedlings pretreated either 2 or 3 weeks, but none grew significantly better than untreated controls. Both pretreated and untreated seedlings responded similarly to soil temperature treatments. Forest Sci. 16:442-446.
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Keywords: Quercus rubra

Document Type: Journal Article

Affiliations: Professor, Forestry Dep., Ohio Agr. Res. and Devel. Center, Wooster 44691

Publication date: 1970-12-01

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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.

    2016 Impact Factor: 1.782 (Rank 17/64 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
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