Your search resulted in 628 documents. Displaying 25 entries per page.
Proposals for collaborative work on laboratory soft rot testing
1986 - IRG/WP 2265
Proposals for collaborative experiments based on soil burial are presented. It is intended to study the use of defined horticultural loams with a view to obtaining more reproducability in laboratory soft rot tests....
D J Dickinson, S M Gray
The true dry rot fungus (Serpula lacrymans) found in the wild in the forests of the Himalayas
1993 - IRG/WP 93-10002
J Bech-Andersen, S A Elborne, F Goldie, J Singh, B Walker
A new approach to the maintenance of wooden railway sleepers. (Second report)
1988 - IRG/WP 3492
The microenvironment and micro-ecology of wooden railway sleepers was investigated to assess their condition to determine the necessary treatment, repair and replacement criteria. In this report the efficacy of the secondary preservative treatment with solid boron rods is discussed and the development of an in-situ, nondestructive test method based on the creation and assessment of structural dyna...
W Beauford, P I Morris, A M Brown, D J Dickinson
Susceptibility of angiosperm sapwood to white-rot fungal colonization and subsequent degradation: a hypothesis
1997 - IRG/WP 97-10211
It has long been recognized that angiosperm sapwood in nature is relatively easily and preferentially degraded by white-rot fungi. This susceptibility to white-rot fungi is generally believed to be mainly caused by the structure and concentration of angiosperm lignin. However, an explicit explanation as to why lignin structure makes a particular wood vulnerable to white-rot colonisation and subseq...
T Schultz, D D Nicholas
Evaluation of the decay caused by Chaetomium globosum Kunze, in the course of time
1987 - IRG/WP 2288
The main research done on soft rot has been directed to determining, by microscopic study, the different stages of penetration into the wood of the fungi that cause it. On the basis of the information furnished by this research, in this work we have tried to quantify its effect, by evaluating the weight loss caused by Chaetomium globosum Kunce in wood of Pinus sylvestris L. and Fagus sylvatica L. ...
M T De Troya, A M Navarrete
Collaborative soft rot test: Amended test method
1972 - IRG/WP 208
The initial draft of a standard test method (Document IRG/WP/201) was discussed at the meeting in Brussels in 1971. It was agreed that a revised draft should be prepared and that the Princes Risborough Laboratory (formerly FPRL) should conduct a trial test using the method as a preliminary to the main collaborative test....
J G Savory
A summary of tests and practical experiences with the Pilodyn wood testing instrument
1980 - IRG/WP 282
This paper presents a summary of the reports, tests and practical experiences with the Pilodyn wood tester not only, however, concerning poles but also in other fields such as standing trees, sawn timber etc. The principle of the Pilodyn is a spring-loaded pin which is fired into the object and the depth to which the pin penetrates is correlated to physical and mechanical properties of the object....
H Friis-Hansen
Final draft of a monographic card for Pole Fungus A, L Harmsen, Rigidoporus vitreus (Fr.) Donk according to the 'Model Questionnaire for preparation of monographic cards for wood-destroying fungi'
1978 - IRG/WP 178
L Harmsen
The use of C CP/MAS NMR in the chemical identification of decayed and undecayed, tropical timber species
1984 - IRG/WP 1224
13C CP/MAS NMR was found to be an extremely powerful tool for elucidating the chemical composition of Eucalyptus maculata, Pinus elliottii and Alstonia scholaris. The differences in lignin composition were different for each timber and discussed in relation to decay caused by soft-rot and white rot fungi. In particular the presence of syringyl and guaiacyl lignin types are discussed.
L E Leightley
The performance of wood preservatives in soil-bed soft rot tests
1993 - IRG/WP 93-20007
Testing the efficacy of wood preservatives in soil is recognised as a fundamental part of the assessment of long-term wood protection in ground contact. Laboratory based tests can provide a hazardous environment in which a preservative can be challenged by a range of micro-organisms. This paper presents the results of tests carried out to investigate the performance of wood preservatives in a wet ...
G R Williams, S Caswell
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water: Final report
1987 - IRG/WP 4133
Three timbers chosen as reference species were treated with 3, 6 and 10% solutions of CCA and CCB preservatives and exposed for up to 93 months at 8 tropical and temperate marine sites. Eleven local species treated in the same way were exposed at 4 of the 8 sites. There was no apparent difference in performance between CCA and CCB treated specimens. The severest test site was Panama Canal but mari...
R A Eaton
An Australian test of wood preservatives. - Part IV: The condition, after 35 years' exposure, of stakes treated with creosote oils and oilborne preservatives
2000 - IRG/WP 00-30241
This paper contains the first results dealing with creosote oils and oilborne preservatives from this in-ground field trial in Australia. The substrates impregnated with preservative were Pinus radiata D. Don sapwood and Eucalyptus regnans F. Muell. heartwood and sapwood. Data are reported from stakes exposed for 35 years at three Australian sites (Innisfail, Sydney, Walpeup). Comparisons were mad...
G C Johnson, J D Thornton
Collaborative soft rot tests: Results of analyses of soil samples
1976 - IRG/WP 263
C R Levy
Groundline treatments for poles - Wedding Bells S.F. test site layout
1983 - IRG/WP 3259
R S Johnstone
The dry rot fungus and other fungi in houses. Part 3
1994 - IRG/WP 94-10083
J Bech-Andersen
Results from soft rot tests in vermiculite jars
1976 - IRG/WP 272
T Vihavainen
Draft of a monographic card for "Pole Fungus A". A paper for dicussion
1974 - IRG/WP 124
L Harmsen
Copper based water-borne preservatives: The biological performance of wood treated with various formulations
1987 - IRG/WP 3451
Wood samples treated with the various components of CCA preservative singly and in combination were tested against a soft rot organism, a copper tolerant brown rot organism and in soil burial both unleached and after leaching. The results suggest that, of the elements tested, fixed copper is essential for preventing soft rot attack and fixed arsenic is essential for preventing attack by a copper t...
S M Gray, D J Dickinson
Use of Transverse Compression Properties as a Measurement of Wood Biodeterioration, Part 1 of 2 - Effect of White-Rot on Yellow-Poplar
2002 - IRG/WP 02-40239
The soil block and agar block test methods are used extensively as a screening process for potential and modified wood preservatives. The extent of decay in standard screening tests, indicative of preservative efficacy, is currently based on mass loss. Mass loss techniques, due to their limit of sensitivity in detecting significant mass loss vis-à-vis decay, require an extended fungus exposure ...
S Janzen, D D Nicholas
Ultrastructural observations on wood-degrading erosion bacteria
1986 - IRG/WP 1283
G F Daniel, T Nilsson
Results of collaborative work on laboratory soft rot testing
1989 - IRG/WP 2341
S M Gray, D J Dickinson
Micromorphology of the decay caused by Chondrostereum purpureum (Pers.:Fr.) Pouzar and Flammulina velutipes (Curt.:Fr.) Singer
1988 - IRG/WP 1358
Two basidiomycetes, Chondrostereum purpureum and Flammulina velutipes, form typical soft rot cavities in hardwoods and softwoods. Cavity formation is prececed by T-branching or bending of hyphae penetrating the wood cell walls. The two fungi also cause erosion of the wood cell walls....
T Nilsson, G F Daniel
Collaborative soft rot tests: Proposed amendments to Document No: IRG/WP/208
1973 - IRG/WP 224
J K Carey, J G Savory
IRG soft-rot stake test - Site 03 Australia. Progress Report No. 3
1982 - IRG/WP 3202
The performance of test stakes was examined after four (4) years. Hardwood stakes treated with CCA showed significant soft-rot attack. The exception to this was Alstonia scholaris which was similar in performance to Pinus sylvestris. A supplementary test containing stakes treated with CBC, PCP and creosote, showed attack in all hardwoods examined. Little decay was found in stakes of Pinus sylvestr...
L E Leightley, R S Johnstone
A novel lipid-related compound, (Z)-1,7-nonadecadiene-2,3-dicarboxylic acid, produced by white-rot fungus Ceriporiopsis subvermispora
2001 - IRG/WP 01-10411
Lipid peroxidation is a possible oxidative process of lignin-degradation at a site far from the enzymes by selective white rot fungi. Production and peroxidation of saturated and unsaturated fatty acids by Ceriporiopsis subvermispora strongly suggests involvement of lipid peroxidation in its ligninolytic system. In this paper, a new aliphatic lipid-related fungal metabolite was isolated from wood ...
M Enoki, Y Honda, M Kuwahara, K Messner, T Watanabe