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metadata.artigo.dc.title: Spatial variation of wood density, stiffness and microfibril angle along Eucalyptus trunks grown under contrasting growth conditions
metadata.artigo.dc.creator: Hein, Paulo Ricardo Gherardi
Chaix, Gilles
Clair, Bruno
Brancheriau, Loïc
Gril, Joseph
metadata.artigo.dc.subject: Terrain slope
Wind speed
Modulus of elasticity
NIR spectroscopy
Environmental control
Wood quality
Declive do terreno
Velocidade do vento
Módulos de elasticidade
Espectroscopia NIR
Controle ambiental
Qualidade da madeira
metadata.artigo.dc.publisher: Springer Jun-2016
metadata.artigo.dc.identifier.citation: HEIN, P. R. G. et al. Spatial variation of wood density, stiffness and microfibril angle along Eucalyptus trunks grown under contrasting growth conditions. Trees, Santa Monica, v. 30, n. 3, p. 871-882, June 2016.
metadata.artigo.dc.description.abstract: Few studies have investigated the influence of environmental conditions on the within-tree variation in Eucalyptus wood traits. The genotype and environment effects and their interactions influence the wood properties. Their evaluations are crucial to estimate the genotype values and to select with efficiency. Thus, the aim of this study was to better understand the effect of ground slope and wind speed on the spatial variation of basic density (ρ), stiffness (MOE) and microfibril angle (MFA) of Eucalyptus wood. Wood discs cut along the trunk were sampled from one-hundred fifty 6-year-old Eucalyptus grandis × E. urophylla hybrids growing in three contrasting growing conditions influenced by ground slope and wind regime. Near infrared (NIR) calibrations previously developed for ρ, MOE and MFA were used to predict in our discs. 2-D plots presenting the spatial variation of predicted wood traits were compared. The higher the ground slope, the greater the magnitude of radial variation in ρ, principally in the medium zone of the trunk. The spatial variation of wood stiffness seems to be sensitive to two environmental conditions. The MFA radial decreases were more pronounced where the wind speed was higher. At the base and top of the trees, however, there was no significant effect of growing conditions on the radial variation of the wood properties considered here.
metadata.artigo.dc.language: en_US
Appears in Collections:DCF - Artigos publicados em periódicos

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