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Genetic variation in basic density and modulus of elasticity of coastal Douglas-fir.Author(s): G.R. Johnson; B.L. Gartner
Source: Tree Genetics and Genomes. 3: 25-33
Publication Series: Scientific Journal (JRNL)
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DescriptionDouglas-fir trees from 39 open-pollinated families at four test locations were assessed to estimate heritability of modulus of elasticity (MOE) and basic density. Heritability estimates of MOE (across-site h
= 0.55) were larger than those for total height (0.15) and diameter at breast height (DBH; 0.29), and similar to those for density (0.59). Negative genetic correlations were found for MOE with height (rA = -0.30) and DBH (rA = -0.51). Negative genetic correlations were found for MOE with height (r = -0.30) and DBH (r = -0.51). The partial correlations of height with MOE and density, while holding DBH constant, were positive. Taper [DBH/9 (height - 1.4)] was found to be negatively associated with MOE.
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CitationJohnson, G.R.; Gartner, B.L. 2006. Genetic variation in basic density and modulus of elasticity of coastal Douglas-fir. Tree Genetics and Genomes. 3: 25-33
KeywordsMOE, density, heritability, genetic correlation
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