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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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Embrapa Gado de Leite (CNPGL) |
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| 2. |  | OLIVEIRA, S. J. de M.; FERNANDES, S. R.; PAGANINI, B.; COSTA, E. M. da. Análise de custo e benefício de duas tecnologias na cafeicultura em Ouro Preto do Oeste, RO. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 6., 2009, Vitória. Inovação científica, competitividade e mudanças climáticas : anais. Vitória: Consórcio Pesquisa Café, 2009.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Rondônia. |
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| 5. | | SOUZA, F. de F.; COSTA, E. F. de M.; SANTOS, C. A. F.; SANTOS, M. M. Coleta de acessos de Psidium em Rondônia, Brasil. In: SIMPOSIO DE RECURSOS GENÉTICOS PARA AMÉRICA LATINA Y EL CARIBE, SIRGEALC, 6., 2007, Chapingo, Mexico. Por la valoracion de los recursos genéticos para el desarrollo sustentable en América Latina y el Caribe: memoria. Chapingo: Universidad Autónoma Chapingo, 2007. p. 125.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia; Embrapa Semiárido. |
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| 6. | | SOUZA, F. de F.; COSTA, E. F. de M.; SANTOS, C. A. F.; SANTOS, M. M. Diversidade de acessos de Psidium coletados em Rondônia, Brasil. In: SIMPOSIO DE RECURSOS GENÉTICOS PARA AMÉRICA LATINA Y EL CARIBE, SIRGEALC, 6., 2007, Chapingo, Mexico. Por la valoracion de los recursos genéticos para el desarrollo sustentable en América Latina y el Caribe: memoria. Chapingo: Universidad Autónoma Chapingo, 2007. p. 37.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia; Embrapa Semiárido. |
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| 7. | | COSTA, E. F. M.; VIEIRA JÚNIOR, J. R.; FERNANDES, C. F.; SILVA, A. G.; SOUZA, F. F. Avaliação de feijoeiro comum quanto à produtividade e resistência a Thanatephorus cucumeris. Summa Phytopathol., Botucatu, v. 34, supl., p. S.98, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia. |
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| 9. | | SOUZA, F. de F.; COSTA, E. F. de M.; DIAS, R. de C. S.; QUEIRÓZ, M. A. Agrupamento de linhagens e híbridos de melancia usando variáveis canônicas. Horticultura Brasileira, Brasília, DF, v. 25, n. 1, p. S90, Suplemento, ago. 2007. Resumo 487. Trabalho apresentado no 47. Congresso Brasileiro de Olericultura, 4. Simpósio Brasileiro sobre Cucurbitáceas, 2007. Porto Seguro.| Biblioteca(s): Embrapa Rondônia. |
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| 11. | | SOUZA, F. de F.; COSTA, E. F. de M.; DIAS, R. de C. S.; QUEIRÓZ, M. A. de. Capacidade de combinação em linhagens e acessos de melancia. Horticultura Brasileira, Brasília, DF, v. 25, n. 1, Suplemento, ago. 2007. Resumo 486. Trabalho apresentado no 47. Congresso Brasileiro de Olericultura, 4. Simpósio Brasileiro sobre Cucurbitáceas, 2007. Porto Seguro.| Biblioteca(s): Embrapa Rondônia. |
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| 15. | | REIS, N. D.; VIEIRA JUNIOR, J. R.; FERNANDES, C. de F.; COSTA, E. F. de M.; SILVA, D. S. G. da. Resposta de acessos e cultivares de feijoeiro quanto à resistência à mela ou teia micélica (Thanatephorus cucumeris) em Rondônia. In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 9., 2008, Campinas. Ciência e tecnologia na cadeia produtiva do feijão. Campinas: Instituto Agronômico, 2008. 1 CD-ROM. (IAC. Documentos, 85). p. 1047-1050.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Rondônia. |
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| Registros recuperados : 15 | |
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