Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability
White rot wood decay under Malaysian (humid tropical) terrestrial conditions pose more serious threats to the in-ground service life of hardwoods than other common fungal decay types. A study is made on decay resistance variation for a total combined list of 30 Peninsular Malaysian and Sarawak ti...
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| Format: | Article |
| Language: | English |
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IRGWP
2012
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| Online Access: | http://ir.unimas.my/id/eprint/16023/ http://ir.unimas.my/id/eprint/16023/1/Classifying%20white%20rot%20decay%20resistance%20%28abstract%29.pdf |
| _version_ | 1848837969309335552 |
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| author | Wong, Andrew H.H Jem, Jessica M.E. Lai, Jiew Kok |
| author_facet | Wong, Andrew H.H Jem, Jessica M.E. Lai, Jiew Kok |
| author_sort | Wong, Andrew H.H |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | White rot wood decay under Malaysian (humid tropical) terrestrial conditions pose
more serious threats to the in-ground service life of hardwoods than other common
fungal decay types. A study is made on decay resistance variation for a total
combined list of 30 Peninsular Malaysian and Sarawak timber species (plus 6 exotic
reference temperate commercial woods for comparison) using the laboratory soilblock
decay test method of ASTM D 2017, challenged with a representative virulent
Malaysian white rot Basidiomycete Pycnoporus sanguineus. Results showed that
Hevea brasiliensis (rubberwood) suffered the most severe wood decay with average
percentage mass loss of 43.9%, and regarded as non-durable. On the other scale, there
was expectedly negligible decay of the most durable species Eusideroxylon zwageri
(belian) heartwood with mean mass loss of only 0.7 %. The remaining species varies
between non-durability and high decay durability, but mainly moderately durable on
the American ASTM 2017 and European EN350-1 decay resistance classification
scales. The decay test findings were weakly correlated with recent Malaysian stake
test results. Comparative variation of the white rot decay resistance among the timber
species will augment the existing pool of information on wood quality classifications
of some tropical timbers that are currently sought by the international timber trade, as
well as detecting promising relatively decay resistant lesser-utilised species, that the
international forest products trade may also be inclined to utilize in addition to the
traditional commercial Malaysian species that are now in limited supplies. |
| first_indexed | 2025-11-15T06:48:06Z |
| format | Article |
| id | unimas-16023 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:48:06Z |
| publishDate | 2012 |
| publisher | IRGWP |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-160232017-05-02T03:54:42Z http://ir.unimas.my/id/eprint/16023/ Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability Wong, Andrew H.H Jem, Jessica M.E. Lai, Jiew Kok GE Environmental Sciences SD Forestry White rot wood decay under Malaysian (humid tropical) terrestrial conditions pose more serious threats to the in-ground service life of hardwoods than other common fungal decay types. A study is made on decay resistance variation for a total combined list of 30 Peninsular Malaysian and Sarawak timber species (plus 6 exotic reference temperate commercial woods for comparison) using the laboratory soilblock decay test method of ASTM D 2017, challenged with a representative virulent Malaysian white rot Basidiomycete Pycnoporus sanguineus. Results showed that Hevea brasiliensis (rubberwood) suffered the most severe wood decay with average percentage mass loss of 43.9%, and regarded as non-durable. On the other scale, there was expectedly negligible decay of the most durable species Eusideroxylon zwageri (belian) heartwood with mean mass loss of only 0.7 %. The remaining species varies between non-durability and high decay durability, but mainly moderately durable on the American ASTM 2017 and European EN350-1 decay resistance classification scales. The decay test findings were weakly correlated with recent Malaysian stake test results. Comparative variation of the white rot decay resistance among the timber species will augment the existing pool of information on wood quality classifications of some tropical timbers that are currently sought by the international timber trade, as well as detecting promising relatively decay resistant lesser-utilised species, that the international forest products trade may also be inclined to utilize in addition to the traditional commercial Malaysian species that are now in limited supplies. IRGWP 2012-01 Article PeerReviewed text en http://ir.unimas.my/id/eprint/16023/1/Classifying%20white%20rot%20decay%20resistance%20%28abstract%29.pdf Wong, Andrew H.H and Jem, Jessica M.E. and Lai, Jiew Kok (2012) Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability. International Research Group on Wood Protection. ISSN 2000-8953 https://www.researchgate.net/publication/291832162 |
| spellingShingle | GE Environmental Sciences SD Forestry Wong, Andrew H.H Jem, Jessica M.E. Lai, Jiew Kok Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability |
| title | Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability |
| title_full | Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability |
| title_fullStr | Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability |
| title_full_unstemmed | Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability |
| title_short | Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability |
| title_sort | classifying white rot decay resistance of some hardwoods from sarawak and peninsular malaysia and correlations with their tropical in-ground durability |
| topic | GE Environmental Sciences SD Forestry |
| url | http://ir.unimas.my/id/eprint/16023/ http://ir.unimas.my/id/eprint/16023/ http://ir.unimas.my/id/eprint/16023/1/Classifying%20white%20rot%20decay%20resistance%20%28abstract%29.pdf |