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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Gado de Leite. |
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Data corrente: |
13/01/2021 |
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Data da última atualização: |
09/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FERREIRA, F. M.; ROCHA, J. R. do A. S. de C.; ALVES, R. S.; ELIZEU, A. M.; BENITES, F. R. G.; RESENDE, M. D. V. de; SOUZA SOBRINHO, F. de; BHERING, L. L. |
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Afiliação: |
Filipe Manoel Ferreira, UFV; João Romero do Amaral Santos de Carvalho Rocha, UFV; Rodrigo Silva Alves, UFV; Arthur Mayrink Elizeu, UFV; FLAVIO RODRIGO GANDOLFI BENITES, CNPGL; MARCOS DEON VILELA DE RESENDE, CNPF; FAUSTO DE SOUZA SOBRINHO, CNPGL; Leonardo Lopes Bhering, UFV. |
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Título: |
Estimates of repeatability coefficients and optimum number of measures for genetic selection of Cynodon spp. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Euphytica, v. 216, article 70, 2020. |
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DOI: |
https://doi.org/10.1007/s10681-020-02605-x |
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Idioma: |
Inglês |
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Conteúdo: |
The genus Cynodon includes species that have huge potential to produce high-quality fodder, for grazing and hay production. In perennial forage breeding, selection should be performed based on repeated measurements in the same individual over time, which maximizes the selective efficiency. Thus, the objectives of this study were to estimate the coefficients of repeatability and optimal number of measures for the genetic selection of Cynodon spp. clones. We evaluated 202 clones, being five checks, during four harvests, in augmented block design. A mixed model methodology (REML/BLUP) was used to estimate the variance components and predict the genotypic values. The repeatability coefficient for plant height, green weight, dry matter, and plant vigor were equal to 0.50, 0.67, 0.25, and 0.73, respectively. The accuracies obtained by performing m repeated measures revealed that 5, 2, 13, and 2 measurements are required to attain an accuracy C 90% in genetic gain from the selection for plant height, green weight, dry matter, and plant vigor, respectively. Furthermore, the efficiency of performing four measurements compared with that of performing only one measurement was 27%, 15%, 51%, and 12% for plant height, green weight, dry matter, and vigor, respectively. In addition, the additive index, adopting a 10% selection intensity, was used in simultaneous selection, leading to desirable genetic gains for plant height, green weight, and plant vigor. In conclusion, the use of the repeatability coefficient suggests performing three measurements to obtain a high accuracy and good efficiency on the selection of superior genotypes of Cynodon spp. MenosThe genus Cynodon includes species that have huge potential to produce high-quality fodder, for grazing and hay production. In perennial forage breeding, selection should be performed based on repeated measurements in the same individual over time, which maximizes the selective efficiency. Thus, the objectives of this study were to estimate the coefficients of repeatability and optimal number of measures for the genetic selection of Cynodon spp. clones. We evaluated 202 clones, being five checks, during four harvests, in augmented block design. A mixed model methodology (REML/BLUP) was used to estimate the variance components and predict the genotypic values. The repeatability coefficient for plant height, green weight, dry matter, and plant vigor were equal to 0.50, 0.67, 0.25, and 0.73, respectively. The accuracies obtained by performing m repeated measures revealed that 5, 2, 13, and 2 measurements are required to attain an accuracy C 90% in genetic gain from the selection for plant height, green weight, dry matter, and plant vigor, respectively. Furthermore, the efficiency of performing four measurements compared with that of performing only one measurement was 27%, 15%, 51%, and 12% for plant height, green weight, dry matter, and vigor, respectively. In addition, the additive index, adopting a 10% selection intensity, was used in simultaneous selection, leading to desirable genetic gains for plant height, green weight, and plant vigor. In conclusion, the use of the repe... Mostrar Tudo |
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Palavras-Chave: |
Bermudagrass; Coeficiente de repetibilidade; Forage breeding; Forrageira; Longitudinal data; Mixed models. |
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Thesagro: |
Forragem; Melhoramento Genético Vegetal; Seleção Genética. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal
G Melhoramento Genético |
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Marc: |
LEADER 02665naa a2200325 a 4500
001 2133355
005 2021-08-09
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10681-020-02605-x$2DOI
100 1 $aFERREIRA, F. M.
245 $aEstimates of repeatability coefficients and optimum number of measures for genetic selection of Cynodon spp.$h[electronic resource]
260 $c2020
520 $aThe genus Cynodon includes species that have huge potential to produce high-quality fodder, for grazing and hay production. In perennial forage breeding, selection should be performed based on repeated measurements in the same individual over time, which maximizes the selective efficiency. Thus, the objectives of this study were to estimate the coefficients of repeatability and optimal number of measures for the genetic selection of Cynodon spp. clones. We evaluated 202 clones, being five checks, during four harvests, in augmented block design. A mixed model methodology (REML/BLUP) was used to estimate the variance components and predict the genotypic values. The repeatability coefficient for plant height, green weight, dry matter, and plant vigor were equal to 0.50, 0.67, 0.25, and 0.73, respectively. The accuracies obtained by performing m repeated measures revealed that 5, 2, 13, and 2 measurements are required to attain an accuracy C 90% in genetic gain from the selection for plant height, green weight, dry matter, and plant vigor, respectively. Furthermore, the efficiency of performing four measurements compared with that of performing only one measurement was 27%, 15%, 51%, and 12% for plant height, green weight, dry matter, and vigor, respectively. In addition, the additive index, adopting a 10% selection intensity, was used in simultaneous selection, leading to desirable genetic gains for plant height, green weight, and plant vigor. In conclusion, the use of the repeatability coefficient suggests performing three measurements to obtain a high accuracy and good efficiency on the selection of superior genotypes of Cynodon spp.
650 $aForragem
650 $aMelhoramento Genético Vegetal
650 $aSeleção Genética
653 $aBermudagrass
653 $aCoeficiente de repetibilidade
653 $aForage breeding
653 $aForrageira
653 $aLongitudinal data
653 $aMixed models
700 1 $aROCHA, J. R. do A. S. de C.
700 1 $aALVES, R. S.
700 1 $aELIZEU, A. M.
700 1 $aBENITES, F. R. G.
700 1 $aRESENDE, M. D. V. de
700 1 $aSOUZA SOBRINHO, F. de
700 1 $aBHERING, L. L.
773 $tEuphytica$gv. 216, article 70, 2020.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 172 | |
| 121. |  | VIANA, J. H. M. Mineralogia das frações areia e silte dos solos da IX RCC. In: SILVA, L. M. da; ANJOS, L. H. C. dos; LUMBRERAS, J. F.; PEREIRA, M. G.; WADT, P. G. S. (Ed.). Pesquisas coligadas da IX Reunião Brasileira de Classificação e Correlação de Solos: solos de formações sedimentares em sistemas amazônicos: potencialidades e demandas de pesquisa. Brasília, DF: Embrapa, 2019.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 123. | | VIANA, J. H. M.; ALBUQUERQUE FILHO, M. R. de; SANTOS, F. C. dos; THOMAZINI, A.; BRANDÃO, A, L. Condutividade hidráulica saturada de solos arenosos com pastagem no sudoeste da Bahia. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 37., 2019, Cuiabá. Intensificação sustentável em sistemas de produção: resumos. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2019.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 128. | | VIANA, J. H. M.; CLEMENTE, E. de P. Morfometria dos grãos de areia. In: TEIXEIRA, P. C.; DONAGEMMA, G. K.; FONTANA, A.; TEIXEIRA, W. G. (Ed.). Manual de métodos de análise de solo. 3. ed. rev. e ampl. Brasília, DF: Embrapa, 2017. pt. 1, cap. 18, p. 177-183.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Solos. |
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| 130. | | VIANA, J. H. M.; COELHO, A. M.; THOMAZINI, A.; CARVALHO, M. P. F. de; FRANÇA, A. C. F.; CLEMENTE, E. de P. Dry matter production and nutrient extraction by three successive crops fertilized with serpentinite rock as a soil remineralizer. Observatorio de La Economia Latinoamerica, v. 22, n. 4, p. 1-17, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 133. | | VIANA, J. H. M.; COSTA, A. M. da; SILVA, V. C. da; MOURA, M. S. de; MARTINS, A. K.; MELO, D. P. de. Quantificação expedita de mosqueados e de plintitas: avaliação de procedimentos em dois perfis da XIII RCC. In: SILVA, M. B. e; LUMBRERAS, J. F.; COELHO, M. R.; OLIVEIRA, V. A. de (ed.). Guia de campo da XIII Reunião Brasileira de Classificação e Correlação de Solos: RCC do Maranhão. Brasília, DF: Embrapa, 2020. cap. 19. E-book.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 135. | | VIANA, J. H. M.; COUCEIRO, P. R. C.; PEREIRA, M. C.; FABRIS, J. D.; FERNANDES FILHO, E. I.; SCHAEFER, C. E. G. R.; RECHENBERG, H. R.; ABRAHAO, W. A.; MANTOVANI, E. C. Occurrence of magnetite in the sand fraction of an Oxisol in the Brazilian savanna ecosystem, developed from a magnetite-free lithology. Australian Journal of Soil Research, Victoria, v. 44, n. 1, p. 71-83, 2006.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 137. | | VIANA, J. H. M.; CRUZ, J. C.; ALVARENGA, R. C.; SANTANA, D. P. Manejo do solo para a cultura do milho. In: CRUZ, J. C.; KARAM, D.; MONTEIRO, M. A. R.; MAGALHAES, P. C. (Ed.). A cultura do milho. Sete Lagoas: Embrapa Milho e Sorgo, 2008. cap. 5, p. 99-129.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 139. | | VIANA, J. H. M.; DONAGEMMA, G. K. Limite de pegajosidade. In: TEIXEIRA, P. C.; DONAGEMMA, G. K.; FONTANA, A.; TEIXEIRA, W. G. (Ed.). Manual de métodos de análise de solo. 3. ed. rev. e ampl. Brasília, DF: Embrapa, 2017. pt. 1, cap. 15, p. 149-151.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Solos. |
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| 140. | | VIANA, J. H. M.; DONAGEMMA, G. K. Granulometria dos solos da RCC de Roraima: subsídios a sua gênese, classificação e manejo. In: BATISTA, K. D.; LUMBRERAS, J. F.; COELHO, M. R.; OLIVEIRA, V. A. de; VALE JÚNIOR, J. F. do (Ed.). Guia de campo da XI Reunião Brasileira de Classificação e Correlação de Solos: RCC de Roraima. Brasília, DF: Embrapa, 2018. cap. 5.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Solos. |
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| Registros recuperados : 172 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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