Ganhos genéticos na seleção pelo método do índice multi-efeitos em progênies polinização livre de Eucalyptus grandis Hill ex Maiden
dc.contributor.author | Miranda, Aline Cristina [UNESP] | |
dc.contributor.author | De Moraes, Mario Luiz Teixeira [UNESP] | |
dc.contributor.author | Da Silva, Paulo Henrique Müller | |
dc.contributor.author | Sebbenn, Alexandre Magno | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | IPEF - Instituto de Pesquisas e Estudos Florestais | |
dc.contributor.institution | IF - Instituto Florestal de São Paulo | |
dc.date.accessioned | 2018-12-11T16:57:37Z | |
dc.date.available | 2018-12-11T16:57:37Z | |
dc.date.issued | 2015-01-01 | |
dc.description.abstract | In 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.affiliation | UNESP - Universidade Estadual Julio de Mesquita Filho, FCA - Faculdade de Ciências Agronômicas de Botucatu, Caixa Postal 237 | |
dc.description.affiliation | Departamento 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.affiliation | IPEF - Instituto de Pesquisas e Estudos Florestais, Caixa Postal 530 | |
dc.description.affiliation | IF - Instituto Florestal de São Paulo, Caixa Postal 1322 | |
dc.description.affiliationUnesp | UNESP - Universidade Estadual Julio de Mesquita Filho, FCA - Faculdade de Ciências Agronômicas de Botucatu, Caixa Postal 237 | |
dc.description.affiliationUnesp | Departamento 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.extent | 203-209 | |
dc.identifier.citation | Scientia Forestalis/Forest Sciences, v. 43, n. 105, p. 203-209, 2015. | |
dc.identifier.issn | 1413-9324 | |
dc.identifier.scopus | 2-s2.0-84932599078 | |
dc.identifier.uri | http://hdl.handle.net/11449/171897 | |
dc.language.iso | por | |
dc.relation.ispartof | Scientia Forestalis/Forest Sciences | |
dc.relation.ispartofsjr | 0,495 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | Genetic variability | |
dc.subject | REML/BLUP | |
dc.subject | Tree breeding | |
dc.title | Ganhos genéticos na seleção pelo método do índice multi-efeitos em progênies polinização livre de Eucalyptus grandis Hill ex Maiden | pt |
dc.title.alternative | Genetic gain in the selection by multi-effects index in open-pollinated progenies of Eucalyptus grandis Hill ex Maiden | en |
dc.type | Artigo | |
unesp.department | Fitotecnia, Tecnologia de Alimentos e Socioeconomia - FEIS | pt |