Ganhos genéticos na seleção pelo método do índice multi-efeitos em progênies polinização livre de Eucalyptus grandis Hill ex Maiden

dc.contributor.authorMiranda, Aline Cristina [UNESP]
dc.contributor.authorDe Moraes, Mario Luiz Teixeira [UNESP]
dc.contributor.authorDa Silva, Paulo Henrique Müller
dc.contributor.authorSebbenn, Alexandre Magno
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionIPEF - Instituto de Pesquisas e Estudos Florestais
dc.contributor.institutionIF - Instituto Florestal de São Paulo
dc.date.accessioned2018-12-11T16:57:37Z
dc.date.available2018-12-11T16:57:37Z
dc.date.issued2015-01-01
dc.description.abstractIn Brazil, Eucalyptus grandis Hill ex Maiden is widely used for commercial reforestation, especially for production of pulp, paper and energy. Its genetic variability is being explored in tree improvement programs for over 30 years. The objective of this work was to estimate genetic parameters and compare genetic gains by multi-effects index in a breeding population of E. grandis. Progeny tests were established using open-pollinated seeds from ten provenances ranging from 153 to 160 progenies established in a completely randomized block design in four sites of São Paulo State (Anhembi, Avaré, Itararé e Pratânia). At 24 months of age the traits diameter at breast height (DBH), height (ALT) and volume (VOL) were measured. The individual site analyses indicated significant genetic differences among progenies, height genetic variability and the mean progeny heritability (> 0.70). For joint analyses of sites, significant differences in genotype x environmental interaction effects were detected, showing differences of performance of the progenies in different sites. The Itararé site gave high genetic gains, effective size and genetic diversity. The genetic diversity and low effective size are unviable factors; considering that the progeny tests studied should retain adequate levels of genetic variability in order to be transformed in future seedling seed orchards.en
dc.description.affiliationUNESP - Universidade Estadual Julio de Mesquita Filho, FCA - Faculdade de Ciências Agronômicas de Botucatu, Caixa Postal 237
dc.description.affiliationDepartamento de Fitotecnia, Tecnologia de Alimentos e Sócio Economia, UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, FEIS - Faculdade de Engenharia de Ilha Solteira, Caixa Postal 31
dc.description.affiliationIPEF - Instituto de Pesquisas e Estudos Florestais, Caixa Postal 530
dc.description.affiliationIF - Instituto Florestal de São Paulo, Caixa Postal 1322
dc.description.affiliationUnespUNESP - Universidade Estadual Julio de Mesquita Filho, FCA - Faculdade de Ciências Agronômicas de Botucatu, Caixa Postal 237
dc.description.affiliationUnespDepartamento de Fitotecnia, Tecnologia de Alimentos e Sócio Economia, UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, FEIS - Faculdade de Engenharia de Ilha Solteira, Caixa Postal 31
dc.format.extent203-209
dc.identifier.citationScientia Forestalis/Forest Sciences, v. 43, n. 105, p. 203-209, 2015.
dc.identifier.issn1413-9324
dc.identifier.scopus2-s2.0-84932599078
dc.identifier.urihttp://hdl.handle.net/11449/171897
dc.language.isopor
dc.relation.ispartofScientia Forestalis/Forest Sciences
dc.relation.ispartofsjr0,495
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectGenetic variability
dc.subjectREML/BLUP
dc.subjectTree breeding
dc.titleGanhos genéticos na seleção pelo método do índice multi-efeitos em progênies polinização livre de Eucalyptus grandis Hill ex Maidenpt
dc.title.alternativeGenetic gain in the selection by multi-effects index in open-pollinated progenies of Eucalyptus grandis Hill ex Maidenen
dc.typeArtigo

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