End-use related physical and mechanical properties of selected fast-growing poplar hybrids (Populus trichocarpa × P. deltoides)

Boever, Lieven De; Vansteenkiste, Dries; Acker, Joris Van; Stevens, Marc

doi:10.1051/forest:2007040

Cited by 31 publications

(20 citation statements)

References 11 publications

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“…Clones with denser wood generally showed higher mechanical properties (Table 4). This result is in good agreement with previous reports (Bendtsen et al 1981;Hernández et al 1998;Kretschmann et al 1999;De Boever et al 2007). In contrast, Mátyás and Peszlen (1997) did not detect significant clonal effects for strength properties of poplar clones.…”

Section: Clonal Variationsupporting

confidence: 93%

“…The overall MOE of the clones studied was comparable to or higher than previous results (Mátyás and Peszlen 1997;Kretschmann et al 1999;De Boever et al 2007). On the other hand, the overall MOR of clones was higher than previous results (Kretschmann et al 1999;De Boever et al 2007). Based on multiple comparisons, clone-4813 and clone-3565 showed higher flexural strength properties among all studied clones (Table 4).…”

Section: Clonal Variationsupporting

confidence: 87%

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Variation of the Physical and Mechanical Properties of Hybrid Poplar Clones

Huda¹,

Koubaa²,

Cloutier³

et al. 2014

BioResources

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The physical and mechanical properties of poplar clones largely determine their suitability for various end-uses, especially for high valueadded applications. The main objective of this study was to determine the clonal variation of selected physical and mechanical properties of seven hybrid poplar clones grown at three sites in southern Quebec, Canada. Five trees per clone were randomly sampled from each site for wood properties measurement. Site had a significant effect on all measured properties except radial shrinkage. All properties of hybrid poplar wood showed significant interclonal variation, indicating the possibility of identifying clones with superior wood properties, especially for density, flexural modulus of rupture, and ultimate crushing strength. High heritability values for the studied properties indicated that these properties are under moderate to high genetic control. The genetic gain for these wood properties ranged from 2.0% to 13.5%.

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Section: Clonal Variationsupporting

confidence: 93%

Section: Clonal Variationsupporting

confidence: 87%

Variation of the Physical and Mechanical Properties of Hybrid Poplar Clones

Huda¹,

Koubaa²,

Cloutier³

et al. 2014

BioResources

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“…Previous studies have found highly significant relationships between density and mechanical properties in hybrid poplar clones [56,57]. At the individual tree level, density showed a highly significant correlation with flexural MOR and ultimate crushing strength and a moderate but significant correlation with flexural MOE.…”

Section: Phenotypic Correlations Between Wood Propertiesmentioning

confidence: 73%

Phenotypic and Genotypic Correlations for Wood Properties of Hybrid Poplar Clones of Southern Quebec

Huda

Koubaa

Cloutier

et al. 2018

Forests

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This study aims to understand the phenotypic and genotypic correlations among wood anatomical, physical, and mechanical properties of hybrid poplar clones. Samples were taken from seven clones grown on three sites in Southern Quebec, Canada. Five trees per clone were randomly sampled from each site to measure anatomical (fiber length, fiber proportion, vessel proportion, fiber wall thickness, tension wood), physical (basic density, volumetric, longitudinal, tangential, and radial shrinkage), and mechanical wood properties (flexural modulus of elasticity (MOE), modulus of rupture (MOR), ultimate crushing strength parallel to the grain). The observed phenotypic and genotypic correlations between these wood properties were moderate to strong, except for fiber length and vessel proportion. Genotypic correlations for all wood properties were higher than for corresponding phenotypic correlations. Furthermore, fiber length showed weak correlations, whereas, vessel proportion showed strongly negative correlations with all other properties. Strong correlations were also found among fiber proportion, fiber wall thickness, basic density, and mechanical properties. Furthermore, results from this study show close genotypic and phenotypic correlations between fiber proportion, fiber wall thickness, and wood density, which consequently affect the mechanical performance of wood products. These findings indicate that there is a substantial opportunity to improve wood quality by selecting several wood properties for different end uses.

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“…(Bendtsen and Senft 1986;Roos et al 1990). Similarly, Peszlen (1998) found mechanical properties tended to increase from the pith to the bark and De Boever et al (2007) observed changes in MOE, MOR, and density with tree height in hybrid poplar that they attributed to changes in the ratio of heartwood to tension wood. Koubaa et al (1998b) found that tangential and volumetric shrinkage tended to increase from pith to bark in hybrid poplar and that clones varied significantly in wood shrinkage properties but variation between trees of the same clone, while statistically significant, accounted for less than 5% of the variation in shrinkage.…”

Section: Introductionmentioning

confidence: 93%

Variation in Wood Properties of Hybrid Poplar Lumber by Radial and Vertical Position in Stem: A Case Study from Boardman, Oregon

Himes

Leavengood²,

Polinko³

2021

WFS

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Understanding of wood quality of hybrid poplar is critically important for manufacturers who want to know the suitability of the wood for specific products. To this end, lumber was milled from the merchantable stem of four hybrid poplar clones ages 10-11 yr, grown at a single site near Boardman, OR. The vertical and radial position in the stem were recorded for each board and the boards were kiln dried, surfaced, and samples from each board tested to determine specific gravity (SG), dimensional stability, hardness, screw withdrawal, and bending strength and stiffness (modulus of rupture [MOR] and modulus of elasticity [MOE], respectively) from small clear specimens. Results show differences in wood properties relative to vertical and radial position in the stem. SG, hardness, screw withdrawal, and bending properties of lumber samples generally increased with height in tree. Tangential hardness, SG, and MOR varied significantly between different sides of the trees corresponding to predominant wind in the area. Boards milled from the center of the stem had lower MOE and MOR than boards milled from nearer the bark. The results of this study may be used to target specific stem locations for different end uses.

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End-use related physical and mechanical properties of selected fast-growing poplar hybrids (Populus trichocarpa × P. deltoides)

Cited by 31 publications

References 11 publications

Variation of the Physical and Mechanical Properties of Hybrid Poplar Clones

Variation of the Physical and Mechanical Properties of Hybrid Poplar Clones

Phenotypic and Genotypic Correlations for Wood Properties of Hybrid Poplar Clones of Southern Quebec

Variation in Wood Properties of Hybrid Poplar Lumber by Radial and Vertical Position in Stem: A Case Study from Boardman, Oregon

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