NATURAL DECAY RESISTANCE OF SIX AMAZON WOOD SPECIES IN SOIL BLOCK TESTS

• Autor(a) principal: Alves, Marcus Vinicius da Silva
• Data de Publicação: 2006
• Outros Autores: Costa, Alexandre Florian da, Espig, Daniele da Silva, Vale, Ailton Teixeira do
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/1884
• topic: amazonian woods; natural resistance; soil block test; decay fungi; Madeiras da Amazônia; resistência natural; ensaio acelerado; fungos apodrecedores

This study evaluated the natural resistance of six Amazonian wood species: Aspidosperma desmanthum (Araracanga), Parinari excelsa (Parinari), Mouriri callocarpa (Miraúba), Marmaroxylon racemosum (Angelim-rajado), Peltogyne paniculata (Roxinho) e Astronium sp. (Muiracatiara) against Pycnoporus sanguineous, a white rot fungus, and Gloeophyllum trabeum, a brown rot fungus. Testing was performed based on the American Society for Testing and Materials - Standard Method for Accelerated Laboratory Test of Natural Decay Resistance of Woods - ASTM D2017/81(86). Results showed that all tested wood species were classified as very resistant to both decay fungi, except the wood of Aspidosperma desmanthum, which demonstrated to be very resistant to Pycnoporus sanguineous and resistant to Gloeophyllum trabeum. The wood of Peltogyne paniculata showed the best performance against Pycnoporus sanguineous, whereas the wood of Astronium sp. presented the best results when submitted to Gloeophyllum trabeum attack.