Rapid prediction of wood stiffness from microfibril angle and density

Wood quality is rapidly becoming a major consideration in tree improvement programs. Rapid, cost-effective methods will be required to cope with the large numbers of samples (increment cores) generated by such programs. Wood stiffness, or longitudinal modulus of elasticity (EL) is one of the most im...

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Bibliographic Details
Published in:Forest products journal 2001-03, Vol.51 (3), p.53-57
Main Authors: EVANS, Robert, ILIC, Jugo
Format: Article
Language:English
Subjects:
Agriculture, Cooperative
Applied sciences
Automation
Exact sciences and technology
Forest products
Forest products industry
Forests and forestry
Polymer industry, paints, wood
Properties and testing
Quality management
Regression analysis
Statistical analysis
Studies
Trees
Wood
Wood. Paper. Non wovens
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Summary:Wood quality is rapidly becoming a major consideration in tree improvement programs. Rapid, cost-effective methods will be required to cope with the large numbers of samples (increment cores) generated by such programs. Wood stiffness, or longitudinal modulus of elasticity (EL) is one of the most important wood properties for solid timber applications and a rapid method for predicting EL from measurements of density and microfibril angle (MFA) is described. Very strong linear relationships have been found between EL, measured by a sonic resonance technique, and various combinations of wood density and MFA for 104 clearwood samples of Eucalyptus delegatensis R. T. Baker. The results of the study indicate that density, MFA, and EL could be included in tree improvement programs using instruments based on SilviScan technology.
ISSN:0015-7473
2376-9637