5/24/2023 0 Comments Dulce amargo dulce maria pdfSilica inclusions, effective against depredation by some marine borers, did not contribute to terrestrial durability. As yet unidentified extractives undoubtedly contributed significantly to the natural resistance of other woods in this study. One of these, obtusaquinone, subsequently isolated from Dalbergia retusa, is effective against marine borers and marine fungi as well as against terrestrial organisms. Many of the most resistant woods contained extractives known to confer protection against termites or fungi. Generally, the denser woods were more durable than the lighter woods, however, density was not an absolute requirement for resistance. Subterranean termites destroyed susceptible woods much more rapidly than did the fungi, however, many woods showed a higher resistance to termites than to fungi. ![]() The most severe fungal damage to the stakes was caused by attack at or below the groundline aboveground fungal decay was somewhat less severe. ![]() Thirty-nine of the 112 woods survived the 158 months of exposure of these only six were considered to be highly resistant to all wood-destroying organisms present. O livro de Dulce é uma espécie de memória íntima e pessoal, sem filtros. Half-buried heartwood stakes of 112 tropical woods and two domestic woods, southern yellow pine and Douglas fir, were evaluated in the Panamanian jungle for natural resistance to infestation by subterranean termites and to fungal decay. Download em pdf centenas de títulos de livros. Descarga Libro Dulce Amargo Online Gratis pdf.
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