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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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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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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
21/08/2009 |
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Data da última atualização: |
21/08/2009 |
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Tipo da produção científica: |
Orientação de Tese de Pós-Graduação |
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Autoria: |
OLIVEIRA, H. R. B. de. |
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Afiliação: |
Hana Rosa Borges de Oliveira, UFPI. |
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Título: |
Efeitos socioeconômicos e ambientais do uso da cultivar de feijão-caupi (Vigna unguiculata (L.) Walp) - BR 17 Gurguéia pela agricultura familiar no perímetro irrigado município de Alvorada do Gurguéia - Piauí. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
2009. |
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Páginas: |
113 f. |
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Idioma: |
Português |
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Notas: |
Dissertação (Mestrado em Desenvolvimento e Meio Ambiente) - Universidade Federal do Piauí, Teresina. Co-Orientador: Francisco Rodrigues Freire Filho. |
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Conteúdo: |
Este estudo aborda os efeitos socioeconômicos e ambientais do uso da cultivar de feijão-caupi (Vigna unguiculata (L.) Walp) pela agricultura familiar no perímetro irrigado, no município de Alvorada do Gurgueia no estado do Piauí, após a utilização da cultivar BR 17 Gurgueia no processo produtivo, quando foi difundido seu uso comercial... |
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Palavras-Chave: |
Feijão-caupi. |
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Thesagro: |
Meio Ambiente; Mercado; Produção; Variedade. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01114nam a2200193 a 4500
001 1257046
005 2009-08-21
008 2009 bl uuuu m 00u1 u #d
100 1 $aOLIVEIRA, H. R. B. de
245 $aEfeitos socioeconômicos e ambientais do uso da cultivar de feijão-caupi (Vigna unguiculata (L.) Walp) - BR 17 Gurguéia pela agricultura familiar no perímetro irrigado município de Alvorada do Gurguéia - Piauí.
260 $a2009.$c2009
300 $a113 f.
500 $aDissertação (Mestrado em Desenvolvimento e Meio Ambiente) - Universidade Federal do Piauí, Teresina. Co-Orientador: Francisco Rodrigues Freire Filho.
520 $aEste estudo aborda os efeitos socioeconômicos e ambientais do uso da cultivar de feijão-caupi (Vigna unguiculata (L.) Walp) pela agricultura familiar no perímetro irrigado, no município de Alvorada do Gurgueia no estado do Piauí, após a utilização da cultivar BR 17 Gurgueia no processo produtivo, quando foi difundido seu uso comercial...
650 $aMeio Ambiente
650 $aMercado
650 $aProdução
650 $aVariedade
653 $aFeijão-caupi
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