Loblolly Pine Seed Sources Differ in Stem Form
Date Published: 1988
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- Schmidtling, R.C.
USDA Forest Service, Southern Forest Experiment Station, Gulfport, MS - Clark, A. III
USDA Forest Service, Southeastern Forest Experiment Station, Athens, GA
The loblolly pine planting in the Southwide Southern Pine Seed Source Study in southwest Georgia was sampled at 35 years of age. Felled-tree dendrometric measurements were collected from 204 trees of 9 provenances. Regressions of actual volume on D²H revealed significant seed source differences. The slope of the volume prediction equation for the Livingston Parish, LA, source differed from that of the other eight seed sources. That is, for trees of the same height and diameter, those from Livingston Parish have the least volume because of different stem form. Despite this difference, the Livingston parish source ranked first in volume per acre because of greater growth rate.
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