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- Title
Comparison of Loblolly, Shortleaf, and Pitch X Loblolly Pine Plantations Growing in Oklahoma.
- Authors
Dipesh, K. C.; Will, Rodney E.; Lynch, Thomas B.; Heinemann, Robert; Holeman, Randal
- Abstract
We measured survival, growth, stem volume, bark thickness, crown area, and stem specific gravity of 10-year-old loblolly pine (Pinus taeda L.), shortleaf pine (P. echinata Mill.), and pitch X loblolly pine hybrid (P. rigida Mill. X P. taeda L.) stands planted at four sites in southeastern Oklahoma to determine the best species for expanding the commercial pine range. Loblolly pine and the pitch X loblolly pine hybrid plantations had greater survival (>70%) than shortleaf pine (59%). After 10 growing seasons, loblolly pine reached an average height of 9.4 m and dbh of 16.5 cm, outgrowing both the pitch X loblolly pine hybrids (8.3 m and 14.2 cm height and dbh, respectively) and shortleaf pine (6.8 m and 11.8 cm, height and dbh, respectively). We did not observe any statistical differences in stemwood specific gravity among the pine species when measured near ground level (overall mean of 0.50). Although crown area and bark thickness increased with tree size, loblolly, shortleaf, and pitch X loblolly pine did not differ when compared at the same dbh. We conclude that planting loblolly pine has the highest potential for extending the commercial pine range in the region tested.
- Subjects
OKLAHOMA; LOBLOLLY pine; SHORTLEAF pine; PLANTATION life; FORESTS &; forestry; AGRICULTURE; PLANT reproduction; SEEDS
- Publication
Forest Science, 2015, Vol 61, Issue 3, p540
- ISSN
0015-749X
- Publication type
Article
- DOI
10.5849/forsci.14-004