Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods

Resistance of six non-durable lesser-known Malaysian hardwoods, Pulai (Alstonia spp.), Rubberwood (Hevea brasiliensis), Ludai (Sapium spp.), Jelutong (Dyera costulata), Gaham Badak (Blumeodendron tokbrai) and Kayu arang (Diospyros spp.) compared with temperate Scots pine sapwood (Pinus sylvestris),...

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Main Author: Wong, Andrew H.H
Format: Article
Language:English
Published: IRGWP 2006
Subjects:
Online Access:http://ir.unimas.my/id/eprint/16071/
http://ir.unimas.my/id/eprint/16071/1/Laboratory%20evaluation%20of%20soft%20rot%20resistance%20%28abstract%29.pdf
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author Wong, Andrew H.H
author_facet Wong, Andrew H.H
author_sort Wong, Andrew H.H
building UNIMAS Institutional Repository
collection Online Access
description Resistance of six non-durable lesser-known Malaysian hardwoods, Pulai (Alstonia spp.), Rubberwood (Hevea brasiliensis), Ludai (Sapium spp.), Jelutong (Dyera costulata), Gaham Badak (Blumeodendron tokbrai) and Kayu arang (Diospyros spp.) compared with temperate Scots pine sapwood (Pinus sylvestris), were evaluated using the unsterile soil burial (mixed with Chaetomium globosum) versus vermiculite-burial (of C. globosum only) laboratory techniques and decay rates expressed as either percent mass/mass or percent mass/volume basis. Scots pine was expectedly soft rot resistant but Pulai wood was almost immune to decay. Other wood species varied from being moderately to highly susceptible to soft rot decay. The vermiculite-burial technique favoured greater soft rot degradation activity than unsterile soil-burial. Results also suggest that soft rot decay rates of susceptible woods could also be accelerated with higher surface area/volume ratios of test blocks. The use of mass/volume basis indicated similar reduced degrees of soft rot resistance among most test wood species whereas apparent differences among woods were found using mass/mass comparisons probably due to variable basic densities among these timbers.
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spelling unimas-160712017-05-02T08:26:59Z http://ir.unimas.my/id/eprint/16071/ Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods Wong, Andrew H.H GE Environmental Sciences SD Forestry Resistance of six non-durable lesser-known Malaysian hardwoods, Pulai (Alstonia spp.), Rubberwood (Hevea brasiliensis), Ludai (Sapium spp.), Jelutong (Dyera costulata), Gaham Badak (Blumeodendron tokbrai) and Kayu arang (Diospyros spp.) compared with temperate Scots pine sapwood (Pinus sylvestris), were evaluated using the unsterile soil burial (mixed with Chaetomium globosum) versus vermiculite-burial (of C. globosum only) laboratory techniques and decay rates expressed as either percent mass/mass or percent mass/volume basis. Scots pine was expectedly soft rot resistant but Pulai wood was almost immune to decay. Other wood species varied from being moderately to highly susceptible to soft rot decay. The vermiculite-burial technique favoured greater soft rot degradation activity than unsterile soil-burial. Results also suggest that soft rot decay rates of susceptible woods could also be accelerated with higher surface area/volume ratios of test blocks. The use of mass/volume basis indicated similar reduced degrees of soft rot resistance among most test wood species whereas apparent differences among woods were found using mass/mass comparisons probably due to variable basic densities among these timbers. IRGWP 2006 Article PeerReviewed text en http://ir.unimas.my/id/eprint/16071/1/Laboratory%20evaluation%20of%20soft%20rot%20resistance%20%28abstract%29.pdf Wong, Andrew H.H (2006) Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods. International Research Group on Wood Protection. ISSN 2000-8953 https://www.researchgate.net/publication/291696320
spellingShingle GE Environmental Sciences
SD Forestry
Wong, Andrew H.H
Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods
title Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods
title_full Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods
title_fullStr Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods
title_full_unstemmed Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods
title_short Laboratory Evaluation of Soft Rot Resistance of Non-Durable Lesser-Known Malaysian Hardwoods
title_sort laboratory evaluation of soft rot resistance of non-durable lesser-known malaysian hardwoods
topic GE Environmental Sciences
SD Forestry
url http://ir.unimas.my/id/eprint/16071/
http://ir.unimas.my/id/eprint/16071/
http://ir.unimas.my/id/eprint/16071/1/Laboratory%20evaluation%20of%20soft%20rot%20resistance%20%28abstract%29.pdf