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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 0103-9954
Vol. 16, No. 1, 2006, pp. 45-50
Bioline Code: cf06005
Full paper language: Portuguese
Document type: Research Article
Document available free of charge

Ciência Florestal, Vol. 16, No. 1, 2006, pp. 45-50

 pt MICOBIOTA ASSOCIADA À MADEIRA SERRADA DE Eucalyptus grandis check for this species in other resources HILL EX MAIDEN DURANTE A SECAGEM AO AR LIVRE
Mesquita, João Basílio; Lima, José Tarcísio & Trugilho, Paulo Fernando

Resumo

O objetivo principal deste trabalho foi o de acompanhar a secagem ao ar livre da madeira serrada de Eucalyptus grandis check for this species in other resources conduzida na região de Lavras, MG e identificar a micobiota associada à madeira em diversas fases da secagem. As tábuas foram cortadas de oito toras de 3,0 m de comprimento, oriundas de três árvores, com 27 anos de idade, plantadas em área experimental da UFLA. Dos resultados, pôde-se concluir que a secagem da madeira de Eucalyptus grandis ao ar livre, iniciada em janeiro, consumiu 158 dias até atingir umidade próxima a 12,5%. A curva de secagem foi representada por uma equação logarítmica com coeficiente de determinação (R2) igual a 98,3%. Os fungos causadores de bolores superficiais e de manchas tiveram maior ocorrência no início da secagem. As mais altas freqüências de fungos, verificadas no início da secagem, foram observadas para Penicillium check for this species in other resources spp. e Pestalotiopsis check for this species in other resources sp. O fungo Lentinus lepideus check for this species in other resources ocorreu com maior freqüência no final da secagem.

Palavras-chave
Eucalyptus; madeira; secagem; fungos.

 
 en MYCOBIOTA ASSOCIATED WITH Eucalyptus grandis check for this species in other resources HILL EX MAIDEN LUMBER DURING AIR DRYING
Mesquita, João Basílio; Lima, José Tarcísio & Trugilho, Paulo Fernando

Abstract

This work’s main objective was to follow the air-drying of Eucalyptus grandis check for this species in other resources lumber, carried out in Lavras, MG, and to identify the mycobiota associated with the lumber at various phases of drying. The lumbers were obtained from eight 3.0 meter long logs from 27 year-old trees, planted in an experimental area of UFLA. Results showed that the air-drying of Eucalyptus grandis, started in January, demanded 158 days to achieve moisture content around 12.5 %. The moisture content-time curve was represented by a logarithmic equation with coefficient of determination equal to 98.3 %. The highest occurrence of fungi that cause surface mold and stain was observed at the beginning of the drying. The highest frequencies of fungi were verified at the beginning of the drying for Penicillium check for this species in other resources spp and Pestalotiopsis check for this species in other resources sp. The fungus Lentinus lepideus check for this species in other resources occurred with higher frequency at the end of the drying.

Keywords
Eucalyptus; lumber; air-drying; fungi.

 
© Copyright 2006 - Ciência Florestal
Alternative site location: http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/index

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