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Increasing Southern Pine Timber Production Through Tree Improvement

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Increasing pressures on the pine timber supply in the South make it mandatory to find ways to increase the inventory. One effective way is through tree improvement. A major objective is to improve adaptability and maintain a broad genetic base, needed both for short-term development for marginal sites and for long-range breeding programs. Results have been good, with a number of specialty orchards already established. Accomplishments through tree improvement are: (1) volume increases varying from 10 to 30 percent for first-generation orchards, depending on selection intensity, roguing methods, and breeding strategy; (2) improvement in tree form, especially straightness; (3) proof that specific gravity of wood is strongly inherited; and (4) gains in fusiform rust resistance up to 40 percent in heavily infected areas.
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Document Type: Journal Article

Affiliations: Professor of Forest Genetics, School of Forest Resources, North Carolina State University, Raleigh

Publication date: 1977-02-01

More about this publication?
  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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