RELATIONSHIP BETWEEN WOOD EXTRACTIVES AND WOOD DECAY | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 1, Volume 18, No. 2, December 2004, Pages 139-154 PDF (159.09 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2003.117542 | ||
| Authors | ||
| Sayed mahmood Kazemi1; Aliakbar Enayati2; Heshmatalah Rahymian3 | ||
| 1University of Mazandaran, Dept. Forestry, college of Agricultural Sciences | ||
| 2University of tehran | ||
| 3University of Mazandaran, faculty of agriculture | ||
| Abstract | ||
| The durability of following five wood species: Zelkova carpinifolia, Ulmus glabra, Pterocarya fraxinifolia, Carpinus betulus and Acer laetum were studied. Wood blocks exposed to Trametes versicolor(a white rot fungus) under laboratory conditions according to DIN52176 standard. After 16 weeks incubation the heart wood of Z. carpinifolia showed 2.19% reduction in weight loss, while U glabra with 41.69%, C. betulus with 45.64%, A. laetum with 53.03% and P. Fraxinifolia with 43.08% weight losses were very decayed. For finding relationship between amount of wood decay and wood extractives a regression was carried out. The percentages of extractive materials by using T20403 standard were 13.84% in Z. carpinifolia, 4.51% in U. glabra, 2.74% in C. betulus, 3.88% in A. laetum, and 4.11% in P. fraxinifolia. Finally there was a negative correlation between rate of decay and amount of wood there was expect P. fraxinifolia. for all wood species extractives. | ||
| Keywords | ||
| WEIGHT LOSS; EXTRACTIVES; WOOD DURABILITY; DECAY; TRAMETES VERSICOLOR; AZAD; MALAG; AFRA; VAN AND MAMRAZ | ||
| References | ||
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