Variations in decay resistance of Cryptomeria fortunei
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| Format: | Artículo científico |
| Langue: | en |
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Universidad del Bío Bío
2023
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| _version_ | 1876478175913967616 |
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| author | Li Xiaoping |
| author_facet | Li Xiaoping |
| contents | Variations in decay resistance of Cryptomeria fortunei Li Xiaoping Li Chunli Jeffrey J. Morrell He Haishan Qiu Jian Zhang Neng Agrociencias Brown rot white rot heartwood extractives decay resistance Cryptomeria fortunei has been widely planted in many cities in southern China. Eventually some of this material may be utilized for timber, but there are relatively few studies of durability of this resource. There is also some question as to whether Cryptomeria fortunei is a synonym for Cryptomeria japonica or Japanese cedar (Sugi). Evaluating the durability of the Chinese resource will help ensure that the decay resistance of this urban plantation resource is properly categorized. The decay resistance of Cryptomeria fortunei wood was assessed in soil block and agar block tests against Trametes versicolor, Gloeophyllum trabeum and Rhodonia placenta. Hot water and ethanol extractive contents of the heartwood were determined on sections from various distances above ground and then FTIR spectroscopy was used to characterize the wood before and after fungal exposure. Weight losses in sapwood were consistent with the minimal decay resistance of this portion of the wood. Inner and outer heartwood weight losses were more variable suggesting that the heartwood of this species would be considered to be only moderately durable. Extractives were weakly correlated with decay resistance. FTIR results were more variable, although they suggested heavier attack of lignin components by the brown rot fungi. The results suggest that Cryptomeria fortunei would need to be protected from the weather unless supplemental preservative treatments were applied. 2023 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48575202013 https://www.redalyc.org/journal/485/48575202013/ https://www.redalyc.org/journal/485/48575202013/html/ https://www.redalyc.org/journal/485/48575202013/48575202013.epub https://www.redalyc.org/journal/485/48575202013/movil 10.14482/INDES.30.1.303.661 en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.25 |
| format | Artículo científico |
| id | redalyc_48575202013 |
| institution | Redalyc |
| language | en |
| publishDate | 2023 |
| publisher | Universidad del Bío Bío |
| spellingShingle | Variations in decay resistance of Cryptomeria fortunei Li Xiaoping Agrociencias Brown rot white rot heartwood extractives decay resistance Variations in decay resistance of Cryptomeria fortunei Li Xiaoping Li Chunli Jeffrey J. Morrell He Haishan Qiu Jian Zhang Neng Agrociencias Brown rot white rot heartwood extractives decay resistance Cryptomeria fortunei has been widely planted in many cities in southern China. Eventually some of this material may be utilized for timber, but there are relatively few studies of durability of this resource. There is also some question as to whether Cryptomeria fortunei is a synonym for Cryptomeria japonica or Japanese cedar (Sugi). Evaluating the durability of the Chinese resource will help ensure that the decay resistance of this urban plantation resource is properly categorized. The decay resistance of Cryptomeria fortunei wood was assessed in soil block and agar block tests against Trametes versicolor, Gloeophyllum trabeum and Rhodonia placenta. Hot water and ethanol extractive contents of the heartwood were determined on sections from various distances above ground and then FTIR spectroscopy was used to characterize the wood before and after fungal exposure. Weight losses in sapwood were consistent with the minimal decay resistance of this portion of the wood. Inner and outer heartwood weight losses were more variable suggesting that the heartwood of this species would be considered to be only moderately durable. Extractives were weakly correlated with decay resistance. FTIR results were more variable, although they suggested heavier attack of lignin components by the brown rot fungi. The results suggest that Cryptomeria fortunei would need to be protected from the weather unless supplemental preservative treatments were applied. 2023 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48575202013 https://www.redalyc.org/journal/485/48575202013/ https://www.redalyc.org/journal/485/48575202013/html/ https://www.redalyc.org/journal/485/48575202013/48575202013.epub https://www.redalyc.org/journal/485/48575202013/movil 10.14482/INDES.30.1.303.661 en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.25 |
| title | Variations in decay resistance of Cryptomeria fortunei |
| topic | Agrociencias Brown rot white rot heartwood extractives decay resistance |
| url | https://www.redalyc.org/articulo.oa?id=48575202013 https://www.redalyc.org/journal/485/48575202013/ https://www.redalyc.org/journal/485/48575202013/html/ https://www.redalyc.org/journal/485/48575202013/48575202013.epub https://www.redalyc.org/journal/485/48575202013/movil |