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Heritabilities of Height, Diameter, and Specific Gravity of Young Virginia Pine

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In young Virginia pine, narrow-sense heritabilities were 0.50 for height at age 1, 0.59 for height at age 8, and 0.33 for diameter at age 8. High simple correlations between heights at early ages and age 8 indicate that selection can be made at young ages, but the simple correlation between total height and annual height growth from age 5 to 8 did not become significant until age 8. This suggests selection should be delayed until at least age 8. Heritabilities for unextracted and extracted specific gravity were 0.38 and 0.41, respectively. Correlation of 0.98 between the two densities indicates that extraction is not necessary on 8-year-old material. FOREST SCI. 23:450-456.
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Keywords: Correlations; Pinus virginiana; growth

Document Type: Journal Article

Affiliations: Professor of Forest Genetics, Department of Forestry, Auburn University

Publication date: 1977-12-01

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    Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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