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Rapid assessment of wood density of live trees using the Resistograph for selection in tree improvement programs

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Academic year: 2020

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Figure

Fig. 1. The drilling unit (left) and the electronic unit (right) of the Resistograph system.
Fig. 2. The Resistograph profiles of two trees showing drillingof a 10-year-old tree from the bark to the pith
Table 1. Individual-tree phenotypic correlations (rP) and linear regression models to predictwood density (wd) using the Resistograph readings (amplitude) at four test sites.
Table 3. Variance component estimates (± standard error) and percentage of total pheno-typic variance explained by each factor in the model, as well as heritabilities and full-sibfamily and within-family coefficients of phenotypic variances for wood density, amplitude,and diameter inside bark (DIB).
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