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

Parental Selection Versus Half-Sib Family Selection of Longleaf Pine

Longleaf pine (Pinus palustris Mill.) differs from other southern pines in that it grows very slowly in height during the first few years. The speed with which longleaf seedlings come out of this grass stage will be important to any program for genetic improvement of the species. This study reports variation in open-pollinated progeny relative to parental ratings established by use of comparison trees. It indicates that both progeny-test selection and phenotypic selection for early height growth will be effective.


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Author(s): E. Bayne Snyder

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1969