BASIC WOOD DENSITY, FIBER DIMENSIONS, AND WOOD CHEMICAL COMPOSITION OF FOUR Eucalyptus SPECIES PLANTED IN SOUTHERN BRAZIL

Authors

  • Eraldo Antonio Bonfatti Júnior Universidade Federal do Paraná, Departamento de Engenharia e Tecnologia Florestal, Curitiba, PR - Brasil.
  • Elaine Cristina Lengowski Universidade Federal de Mato Grosso, Faculdade de Engenharia Florestal, Cuiabá, MT - Brasil
  • Bruna Mulinari Cabral Universidade Federal do Paraná, Programa de Pós-Graduação em Engenharia Florestal, Curitiba, PR - Brasil.
  • Thiago Wendling Gonçalves de Oliveira Universidade Federal do Paraná, Programa de Pós-Graduação em Engenharia Florestal, Curitiba, PR - Brasil.
  • Jeinna Michelly Rodrigues de Barros Universidade Federal de Mato Grosso, Programa de Pós-Graduação em Ciências Florestais e Ambientais, Cuiabá, MT - Brasil
  • Rudson Silva Oliveira Universidade Federal do Paraná, Programa de Pós-Graduação em Engenharia Florestal, Curitiba, PR - Brasil.
  • Alan Sulato de Andrade Universidade Federal do Paraná, Departamento de Engenharia e Tecnologia Florestal, Curitiba, PR - Brasil.
  • Umberto Klock Universidade Federal do Paraná, Departamento de Engenharia e Tecnologia Florestal, Curitiba, PR - Brasil.
  • Dimas Agostinho da Silva Universidade Federal do Paraná, Departamento de Engenharia e Tecnologia Florestal, Curitiba, PR - Brasil.

Keywords:

Basic density, Fibers, Wood chemistry

Abstract

In the Brazilian planted forest sector, most of the species used are from the genus Eucalyptus. Even though Southern Brazil has a suitable climate for species of the genus Pinus, the planting of frost-resistant Eucalyptus species has been increasing annually. The objective of this study was to evaluate the basic density, fiber dimensions, and chemical composition of Eucalyptus benthamii, Eucalyptus dunnii, Eucalyptus saligna, and Eucalyptus cloeziana woods. The trees used were from a six-year-old experimental plantation located in Canoinhas, state of Santa Catarina. For each species, three trees were selected, and discs were removed from each tree at 0%, 25%, 50%, 75%, and 100% of the commercial stem height. To evaluate the quality of the wood, the basic wood density, fiber dimensions, and chemical composition of the wood were determined by comparing the values between species and between the heights in the stem. The highest basic density was that of the wood of E. cloeziana; this species also had the greatest length and width of fibers. E. dunnii had the lowest levels of lignin and the highest levels of holocellulose. The highest lignin content was found in the wood of E. benthamii, E. saligna, and E. cloeziana. The relationship between wood properties and stem height was not relevant. The results highlight the tendency for higher extractives to be found at taller heights (100%), and holocellulose and lignin content are similar at all heights.

Keywords: Basic density; Fibers; Wood chemistry

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Published

2023-02-17

How to Cite

Bonfatti Júnior, E. A., Lengowski, E. C., Cabral, B. M., de Oliveira, T. W. G., de Barros, J. M. R., Oliveira, R. S., de Andrade, A. S., Klock, U., & da Silva, D. A. (2023). BASIC WOOD DENSITY, FIBER DIMENSIONS, AND WOOD CHEMICAL COMPOSITION OF FOUR Eucalyptus SPECIES PLANTED IN SOUTHERN BRAZIL. Revista Árvore, 47, https://doi.org/10.1590/1806–908820230000004. Retrieved from https://revistaarvore.ufv.br/rarv/article/view/262616

Issue

Revista Árvore, Viçosa-MG, v.47, 2023

Section

Wood Technology and Utilization of Forest Products

License

All authors agreed to submit the work to Revista Árvore and granted the exclusive license to publish the article. The authors affirm that it is an original work and has not been previously published elsewhere. The scientific content and opinions expressed in the article are the sole responsibility of the authors and reflect their opinions, not necessarily representing the opinions of the editorial board of Revista Árvore or of the Society of Forest Investigations (SIF).

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