Delimitação entre os lenhos juvenil e adulto de pinus elliottii engelm

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dc.contributor.authorPalermo, Gilmara Pires de Moura
dc.contributor.authorLatorraca, João Vicente de Figueiredo
dc.contributor.authorSevero, Elias Taylor Durgante [UNESP]
dc.contributor.authordo Nascimento, Alexandre Miguel
dc.contributor.authorde Rezende, Marcos Antônio [UNESP]
dc.contributor.institutionUniversidade Federal Rural do Rio de Janeiro (UFRRJ)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:27:31Z
dc.date.available2014-05-27T11:27:31Z
dc.date.issued2013-01-01
dc.description.abstractTrees produce different types of woody tissue during growth. The xylem produced in the first years until a certain cambial age is called juvenile wood and has different physical, mechanical, chemical and anatomical characteristics from that produced later, when the cambial cells have matured. Thus, prior knowledge of the quality of the wood is of fundamental importance for choosing the best use of the material. This work aimed at using data from length of the tracheid and wood density to define the age transition from juvenile to mature wood. For this, three Pinus elliottii var. elliottii trees, aged 35 years, were collected at the Itapetininga Experimental Station, located in the state of São Paulo, Brazil. From each tree, disks of about 5 cm thick were obtained 0.05 m above the ground and used to determine the radial density by the gamma ray attenuation method and to measure the length of the tracheids. The results obtained by linear regression analysis showed that juvenile wood is limited to the first seven years of tree growth and the formation of mature wood occurs after twenty years. For the mature wood, there are significant differences among the averages obtained from the tracheid length and wood density.en
dc.description.affiliationUniversidade Federal Rural do Rio de Janeiro
dc.description.affiliationUniversidade Estadual Paulista
dc.description.affiliationUnespUniversidade Estadual Paulista
dc.format.extent191-200
dc.identifierhttp://dx.doi.org/10.1590/S0100-67622013000100020
dc.identifier.citationRevista Arvore, v. 37, n. 1, p. 191-200, 2013.
dc.identifier.doi10.1590/S0100-67622013000100020
dc.identifier.file2-s2.0-84875867942.pdf
dc.identifier.issn0100-6762
dc.identifier.issn1806-9088
dc.identifier.lattes2712899450900716
dc.identifier.scieloS0100-67622013000100020
dc.identifier.scopus2-s2.0-84875867942
dc.identifier.urihttp://hdl.handle.net/11449/74253
dc.identifier.wosWOS:000316962400020
dc.language.isoeng
dc.language.isopor
dc.relation.ispartofRevista Árvore
dc.relation.ispartofjcr0.392
dc.relation.ispartofsjr0,458
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAge transition
dc.subjectWood density
dc.subjectWood quality
dc.titleDelimitação entre os lenhos juvenil e adulto de pinus elliottii engelmpt
dc.title.alternativeDelimitation the juvenile and mature wood of Pinus elliottii Engelmen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rarv/paboutj.htm
unesp.author.lattes2712899450900716
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt
unesp.departmentCiência Florestal - FCApt

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Botucatu - FCA - Faculdade de Ciências Agronômicas