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Maderas. Ciencia y tecnología

versão On-line ISSN 0718-221X

Resumo

HERNANDEZ, Mariano; ZADERENKO, Constantino  e  MONTEOLIVA, Silvia. Growth stresses and physical properties of Eucalyptus dunnii wood in Argentina. Maderas, Cienc. tecnol. [online]. 2014, vol.16, n.3, pp.373-384.  Epub 27-Jun-2014. ISSN 0718-221X.

To evaluate growth stresses in Eucalyptus dunnii and determine the effect of physical wood properties on that variable, a total of 45 trees were sampled from a 19-years-old trial located at Corrientes, Argentina. Growth stresses were determined using the growth stress indicator (GSI, CIRAD-Forêt) and the log end split index (IR). The physical wood properties basic density and total volumetric shrinkage were measured and the pith-to- bark gradient of the basic density was determined. GSI and IR values obtained were lower than those cited for the species (GSI: 0,0763 ± 0,0251 mm and IR: 0,43 ± 0,31 %) and showed good association between themselves (r: 0,71). A low association between growth stresses and the physical wood properties basic density (r: 0,35 - 0,39) and volumetric shrinkage total (r: 0,29-0,35) was founded. The association levels were higher when growth stresses (GSI and IR) and the pith-to-bark gradient of the basic density (r: 0,59-0,52) were correlated.

Palavras-chave : Basic density; volumetric shrinkage; GSI; split index; pith-to-bark gradient.

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