Estimativas de parâmetros genéticos para caracteres quantitativos em progênies de polinização aberta de Eucalyptus urophylla

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dc.contributor.authorde Souza, Cidinei Santos [UNESP]
dc.contributor.authorFreitas, Miguel Luiz Menezes
dc.contributor.authorde Moraes, Mário Luiz Teixeira
dc.contributor.authorSebbenn, Alexandre Magno
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionDivisão de Dasonomia
dc.contributor.institutionEstação Experimental de Tupi
dc.date.accessioned2014-05-27T11:26:21Z
dc.date.available2014-05-27T11:26:21Z
dc.date.issued2011-12-28
dc.description.abstractEucalyptus urophylla S. T. Blake is outstanding for valuable wood production potential, adaptation plasticity for different environmental conditions, and for tolerance to canker. However, genetic improvement of this specie in Brazil depends on the existence of genetic variability in the introduced populations. The objective of this study was to investigate the genetic variation and gains in quantitative traits in a population established in 1992 in Selvíria - MS. The progeny trial was established in a partially balanced, 8 x 8 lattice design, with 64 families, collected at Anhembi Experimental Station (IPEF/ESALQ/USP). Each plot was made up of eight trees planted in a 3 × 3 m spacing. Significant among families genetic variations were observed in diameter at breast height (DBH), bark type, stem form, and survival. Estimates of average family heritability were high for all traits, ranging from 0.50 to 0.85. The simulated selection by using multi-effect index showed that under a varying number of plants per family. This method is the most indicated to maximize genetic gains (7.24%) and the effective population size (69.3). These results are a useful support for the transformation of this test into a seedling seed orchard and to become a source of vegetative material to build a clonal seed orchard.en
dc.description.affiliationFaculdade de Engenharia de Ilha Solteira UNESP, São Paulo, SP
dc.description.affiliationInstituto Florestal Divisão de Dasonomia, São Paulo, SP
dc.description.affiliationFaculdade de Engenharia de Ilha Solteira, UNESP São Paulo, SP
dc.description.affiliationInstituto Florestal Estação Experimental de Tupi, São Paulo, SP
dc.description.affiliationUnespFaculdade de Engenharia de Ilha Solteira UNESP, São Paulo, SP
dc.format.extent847-856
dc.identifierhttp://ojs.c3sl.ufpr.br/ojs/index.php/floresta/article/viewArticle/25348
dc.identifier.citationFloresta, v. 41, n. 4, p. 847-856, 2011.
dc.identifier.file2-s2.0-84255199553.pdf
dc.identifier.issn0015-3826
dc.identifier.issn1982-4688
dc.identifier.scopus2-s2.0-84255199553
dc.identifier.urihttp://hdl.handle.net/11449/73112
dc.language.isopor
dc.relation.ispartofFloresta
dc.relation.ispartofsjr0,354
dc.relation.ispartofsjr0,354
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectGains in selection
dc.subjectGenetic variance
dc.subjectHeritability
dc.subjectProgeny test
dc.subjectTree breeding
dc.titleEstimativas de parâmetros genéticos para caracteres quantitativos em progênies de polinização aberta de Eucalyptus urophyllapt
dc.title.alternativeEstimates of genetic parameters for quantitative traits in open-pollinated families of Eucalyptus urophyllaen
dc.typeArtigo
dcterms.licensehttp://ojs.c3sl.ufpr.br/ojs/index.php/floresta/about/editorialPolicies#openAccessPolicy

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