Inheritance of Compression Wood

Timell, T. E.

doi:10.1007/978-3-642-61616-7_14

Cited by 2 publications

(2 citation statements)

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“…This low mass loss can be due to the presence of compression wood. Greater resistance of compression wood to decay fungi compared to normal wood has been reported in previous studies (Blanchette, Obst, and Timell 1994; Timell 1986). Overall, Xylaria longipes resulted in significantly greater weight loss compared to Physisporinus vitreus after 45 days of incubation.…”

Section: Resultssupporting

confidence: 61%

“…It is strongly dependant on the wood anatomical structure, the level of interconnection among axial tracheids and any defects and anomalies in wood. Compression wood is an abnormal tissue that is usually formed on the lower side of a leaning softwood tree or the underside of branches, but sometimes also in all areas of an apparently vertical tree (Timell 1986; Tarmian, Remond, Dashti, and Perré 2012). Our previous study revealed that the compression wood of Picea abies L. is less permeable than the normal wood due to some differences in their anatomical features affecting fluid flow paths, such as bordered pit dimensions and proportions (Tarmian and Perré 2009).…”

Section: Introductionmentioning

confidence: 99%

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Improving the permeability of Douglas-fir (Pseudotsuga menziesii) containing compression wood byPhysisporinus vitreusandXylaria longipes

Emaminasab

Tarmian

Pourtahmasi

et al. 2016

International Wood Products Journal

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The bioincising impact of Physisporinus vitreus and Xylaria longipes on the porous structure, and permeability of Douglas-fir containing compression wood was investigated. Fungal cultivation was carried out at 25°C and 85% relative humidity in an incubator for three time periods, namely, 15, 30 and 45 days. Safranin solution was injected into wood specimens to evaluate liquid permeability whereas air permeability was measured by the falling-water method. Wood exposure to both fungi enhanced permeability by increasing incubation period. However, the parallel compression strength of wood reduced. Microscopic imagery revealed degradation of bordered pits, bore-hole formation through tracheid walls as well as ray damage which are thought to be main reasons for improvements in air and liquid permeability. No pronounced differences were found between the fungi in their effects on permeability. Parenchyma rays were also shown to play an important role in the radial permeability of Douglas-fir compression wood.

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Section: Resultssupporting

confidence: 61%