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Notes: Genetic Variation Among and Within Single-Tree Progenies of Northern Red Oak

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Twelve genotypes from each of five open-pollinated families of northern red oak (Quercus rubra L.) were clonally multiplied by splitting embryos from seeds. Height and stem diameter were measured on all clones over two growing seasons in outdoor planters. Families, and clones from the same family, differed significantly in first- and second-year height and diameter adjusted to the same seed weight. Clone-within-family variance was greater than family variance for first-year height (53% versus 35% of total variance), while family variance was greater than clone-within-family variance for second-year height (40% versus 35%). For. Sci. 35(1):pp. 251-256.
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Keywords: Quercus rubra; clonal variation; juvenile growth rate

Document Type: Miscellaneous

Affiliations: Professor, Forest Resources Laboratory, School of Forest Resources, The Pennsylvania State University, University Park, PA 16802

Publication date: 1989-03-01

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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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