Data/hora: 02/06/2024 01:29:50

Provedor de dados: | 86
País: | Brazil
Título: | Characterization of eucalyptus clones subject to wind damage
Autores: | Zanuncio,Antônio José Vinha; Carvalho,Amélia Guimarães; Carneiro,Angélica de Cassia Oliveira; Valenzuela,Paulina; Gacitúa,William; Leite,Fernando Palha; Colodette,Jorge Luiz.
Data: | 2017-11-01
Ano: | 2017
Palavras-chave: | Eucalyptus grandis × Eucalyptus urophylla; Basic density; Cell wall fraction; Cell wall ultrastructure; Fiber; Wood.
Resumo: | Abstract: The objective of this work was to test a new methodology to assess the resistance of trees to wind damage and determine the characteristics that increase clone resistance to winds. Tree resistance to breakage, basic density, ultrastructure, anatomy, mechanical properties, and wood growth stress have been evaluated in seven Eucalyptus grandis × Eucalyptus urophylla clones, collected from a region with a high incidence of wind damage. The Pearson correlation coefficient between the tree resistance to breakage and the ratio between the area damaged by the winds and the total planted area was -0.839, showing the efficiency of the methodology adopted and that high breaking strength results in a smaller area affected by wind damage. Trees with a high basic density, cell wall fraction, modulus of elasticity of the middle lamella and fibers, fiber hardness, modulus of rupture, growth stress and low microfibril angle and height and width of the rays showed greater resistance to wind damage. Therefore, the selection of clones with these features may reduce the incidence of damage by winds in Eucalyptus plantations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001100969

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/s0100-204x2017001100002
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.52 n.11 2017
Fonte: | info:eu-repo/semantics/openAccess