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Estimating solid wood properties using Pilodyn and acoustic velocity on standing trees of Norway spruce
SLU Swedish University of Agricultural Sciences, Sweden.
Skogforsk, Sweden.
RISE, Innventia.
SLU Swedish University of Agricultural Sciences, Sweden.
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2015 (English)In: Annals of Forest Science, ISSN 1286-4560, E-ISSN 1297-966X, Vol. 72, no 4, p. 499-508Article in journal (Refereed) Published
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Abstract [en]

Key message: Strong genetic correlations were observed between Pilodyn measurement and wood density, and between acoustic velocity and MFA. Combination of Pilodyn penetration and acoustic velocity measurements from standing trees can provide reliable prediction of stiffness of Norway spruce for breeding selection.

Context: Traditional methods for the estimation of solid wood quality traits of standing tree such as wood density, microfibril angle (MFA), and modulus of elasticity (MOE) are time-consuming and expensive, which render them unsuitable for rapidly screening a large number of trees in tree breeding programs.

Aim: This study aims to evaluate the suitability of using Pilodyn penetration and acoustic velocity (nondestructive evaluation) to assess wood density, MFA, and MOE for Norway spruce.

Methods: Pilodyn penetration and Hitman acoustic velocity, as well as wood density, MFA, and MOE using benchmark SilviScan were measured on 5618 standing trees of 524 open-pollinated families in two 21-year-old Norway spruce (Picea abies) progeny trials in southern Sweden.

Results: Strong genetic correlations were observed between Pilodyn measurement and wood density (rg = −0.96), and between acoustic velocity and MFA (rg = −0.94). Combination of Pilodyn penetration and Hitman acoustic velocity measurements (Formula presented.) obtained from standing trees showed a genetic correlation with benchmark MOE of 0.99. This combined MOE(Formula presented.) had higher selection efficiency for benchmark MOE (92 %) compared to 58–60 % using acoustic velocity alone and 78 % using Pilodyn penetration alone.

Conclusion: Combination of Pilodyn penetration with Hitman acoustic velocity provided very high selection efficiency for the three most important quality traits for wood mechanical properties in Norway spruce.

Place, publisher, year, edition, pages
2015. Vol. 72, no 4, p. 499-508
Keywords [en]
Microfibril angle, Modulus of elasticity, Nondestructive evaluation, Norway spruce, Wood density
National Category
Wood Science
Identifiers
URN: urn:nbn:se:ri:diva-762DOI: 10.1007/s13595-015-0458-9Scopus ID: 2-s2.0-84929175063OAI: oai:DiVA.org:ri-762DiVA, id: diva2:970744
Available from: 2016-09-14 Created: 2016-08-03 Last updated: 2023-05-25Bibliographically approved

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