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U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Geographic Variation In Loblolly Pine

Twenty-five year results in a test of 36 seed sources in southern AR showed that early height differences between eastern and western sources, evident since the fifth year, continued to diverge, with consequent volume differences of about 30 percent near rotation age. The rangewide sources proved to be well adapted in southern Arkansas except for those from near the Gulf Coast and Florida. Source latitude was very important to adaptation, source longitude was not. Eastern loblolly has been planted on an operational basis in Arkansas and Oklahoma for several years.


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Author(s): O. O. Wells

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1983