Observational analysis reveals superior seed and seedling production of loblolly pine in Oklahoma, suggesting potential for wider adaptation.
Loblolly pine planted ten miles west of Stillwater, Oklahoma, in 1939 has produced considerable seed and seedlings for several years over the last ten-year period. Shortleaf and ponderosa pine plated the same year on the same site have not grown, or reproduced as well as loblolly pine.
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Clayton E. Posey (1967) studied this question.
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