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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/01/2017 |
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Data da última atualização: |
18/01/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, G. A. dos; NUNES, A. C. P.; RESENDE, M. D. V. de; SILVA, L. D.; HIGA, A.; ASSIS, T. F. de. |
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Afiliação: |
G. A. dos Santos, UFV; A. C. P. Nunes, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; L. D. Silva, ESALQ; A. R. Higa, UFPR; T. F. de Assis, Assistech Tecnologia em Melhoramento. |
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Título: |
An index combining volume and Pilodyn penetration to study stability and adaptability of Eucalyptus multi-species hybrids in Rio Grande do Sul, Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Australian Forestry,v. 79, n. 4, p. 248-255, 2016. |
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DOI: |
http://dx.doi.org/10.1080/00049158.2016.1237253 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper presents results from a study into the stability and adaptability of Eucalyptus multispecies hybrids in the state of Rio Grande do Sul, Brazil, using an index that includes volume growth and Pilodyn penetration. Clonal tests were established with 146 Eucalyptus clones from 34 different species and/or hybrids, in a randomised block design with 30 replications, and one plant per plot in four different sites. Diameter at breast height (dbh), tree total height (th), and Pilodyn penetration for indirect estimate of basic density were measured in trees at three years of age. An index (MAIweight) combining mean annual volume increment and Pilodyn penetration was calculated. In the analysis of MAIweight for each site, the best clones were from pure species (E. urophylla, E. grandis and E. saligna). In contrast, the evaluation of adaptability and stability between the four environments simultaneously showed that three-way cross and single cross hybrids ranked more highly: E. urophylla × (E. camaldulensis × E. grandis), E. grandis × (E. urophylla × E. grandis) and E. grandis × E. urophylla. This study demonstrates the importance of heterosis (hybrid vigour) to improving adaptability and stability. Genetic complementarity from crosses between different species was the principal process that produced the observed heterosis. While the pure species performed well in specific environments, the hybrids presented better broad adaptation to a range of environments. Breeding efforts should therefore account for these features when planning crosses and choosing sites for establishing trials. MenosThis paper presents results from a study into the stability and adaptability of Eucalyptus multispecies hybrids in the state of Rio Grande do Sul, Brazil, using an index that includes volume growth and Pilodyn penetration. Clonal tests were established with 146 Eucalyptus clones from 34 different species and/or hybrids, in a randomised block design with 30 replications, and one plant per plot in four different sites. Diameter at breast height (dbh), tree total height (th), and Pilodyn penetration for indirect estimate of basic density were measured in trees at three years of age. An index (MAIweight) combining mean annual volume increment and Pilodyn penetration was calculated. In the analysis of MAIweight for each site, the best clones were from pure species (E. urophylla, E. grandis and E. saligna). In contrast, the evaluation of adaptability and stability between the four environments simultaneously showed that three-way cross and single cross hybrids ranked more highly: E. urophylla × (E. camaldulensis × E. grandis), E. grandis × (E. urophylla × E. grandis) and E. grandis × E. urophylla. This study demonstrates the importance of heterosis (hybrid vigour) to improving adaptability and stability. Genetic complementarity from crosses between different species was the principal process that produced the observed heterosis. While the pure species performed well in specific environments, the hybrids presented better broad adaptation to a range of environments. Breeding efforts... Mostrar Tudo |
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Palavras-Chave: |
Genotype by environment interaction; Melhoramento genético; Single cross hybrid; Three-way cross hybrid. |
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Thesaurus Nal: |
Eucalyptus; Plant breeding; Wood quality. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02543naa a2200277 a 4500
001 2060987
005 2017-01-18
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1080/00049158.2016.1237253$2DOI
100 1 $aSANTOS, G. A. dos
245 $aAn index combining volume and Pilodyn penetration to study stability and adaptability of Eucalyptus multi-species hybrids in Rio Grande do Sul, Brazil.$h[electronic resource]
260 $c2016
520 $aThis paper presents results from a study into the stability and adaptability of Eucalyptus multispecies hybrids in the state of Rio Grande do Sul, Brazil, using an index that includes volume growth and Pilodyn penetration. Clonal tests were established with 146 Eucalyptus clones from 34 different species and/or hybrids, in a randomised block design with 30 replications, and one plant per plot in four different sites. Diameter at breast height (dbh), tree total height (th), and Pilodyn penetration for indirect estimate of basic density were measured in trees at three years of age. An index (MAIweight) combining mean annual volume increment and Pilodyn penetration was calculated. In the analysis of MAIweight for each site, the best clones were from pure species (E. urophylla, E. grandis and E. saligna). In contrast, the evaluation of adaptability and stability between the four environments simultaneously showed that three-way cross and single cross hybrids ranked more highly: E. urophylla × (E. camaldulensis × E. grandis), E. grandis × (E. urophylla × E. grandis) and E. grandis × E. urophylla. This study demonstrates the importance of heterosis (hybrid vigour) to improving adaptability and stability. Genetic complementarity from crosses between different species was the principal process that produced the observed heterosis. While the pure species performed well in specific environments, the hybrids presented better broad adaptation to a range of environments. Breeding efforts should therefore account for these features when planning crosses and choosing sites for establishing trials.
650 $aEucalyptus
650 $aPlant breeding
650 $aWood quality
653 $aGenotype by environment interaction
653 $aMelhoramento genético
653 $aSingle cross hybrid
653 $aThree-way cross hybrid
700 1 $aNUNES, A. C. P.
700 1 $aRESENDE, M. D. V. de
700 1 $aSILVA, L. D.
700 1 $aHIGA, A.
700 1 $aASSIS, T. F. de
773 $tAustralian Forestry,v. 79$gn. 4, p. 248-255, 2016.
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Embrapa Florestas (CNPF) |
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| 5. |  | CORDEIRO, I. M. C. C.; LAMEIRA, O. A. Hymenaea courbaril: Jatobá. In: CORADIN, L.; CAMILLO, J.; VIEIRA, I. C. G. (ed.). Espécies nativas da flora brasileira de valor econômico atual ou potencial: plantas para o futuro: região Norte. Brasília, DF: MMA, 2022. p. 1056-1062. (Série Biodiversidade, 53).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 7. | | CORDEIRO, I. M. C. C.; SANTANA, A. C. de; LAMEIRA, O. A.; SILVA, I. M. Análise econômica dos sistemas de cultivo com Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (Paricá) e Ananas comosus var. erectifolius (L. B. Smith) Coppus & Leal (Curauá) no município de Aurora do Pará (pa), Brasil. Revista de la Facultad de Agronomía, Maracaibo, v. 26, n. 2, p. 243-265, abr./jun. 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 14. | | GAZEL FILHO, A. B.; YARED, J. A. G.; MOURÃO JUNIOR, M.; CORDEIRO, I. M. C. C. Conservação de recursos fitogenéticos em quintais agroflorestais em Mazagão, Amapá. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 15. | | FERREIRA, G. C.; CORDEIRO, I. M. C. C.; MOURÃO JUNIOR, M.; ANDRADE, A. C. S. Composição florística de espécies oportunistas em agroecossistema de paricá e curauá. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 17. | | CORDEIRO, I. M. C. C.; LAMEIRA, O. A.; LOPES, S. da C.; RIOS, M. S. Germinação in vitro de Paricá: Schizolobium amazonicum Huber. Biotecnologia Ciência & Desenvolvimento, Brasília, DF, v. 5, n. 27, p. 58-61, jul./ago. 2002.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 18. | | CORDEIRO, I. M. C. C.; LAMEIRA, O. A.; LOPES, S. da C.; RIOS, M. S. Germinação in vitro de paricá (Schizolobium amazonicum Huber, Ex Ducke). In: CONGRESSO NACIONAL DE BOTÂNICA, 53.; REUNIÃO NORDESTINA DE BOTÂNICA, 25., 2002, Recife. Resumos. Recife: SBB, 2002. p. 14.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 19. | | FERREIRA, M. C.; LAMEIRA, O. A.; BARBOSA, R. K. da C.; CORDEIRO, I. M. C. C. Piper callosum: Elixir-paregórico. In: CORADIN, L.; CAMILLO, J.; VIEIRA, I. C. G. (ed.). Espécies nativas da flora brasileira de valor econômico atual ou potencial: plantas para o futuro: região Norte. Brasília, DF: MMA, 2022. p. 1078-1081. (Série Biodiversidade, 53).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 90 | |
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