| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
17/08/2021 |
|
Data da última atualização: |
17/08/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
RODRIGUES, E. V.; DAHER, R. F.; GRAVINA, G. de A.; VIANA, A. P.; ARAUJO, M. do S. B. de; OLIVEIRA, M. L. F.; VIVAS, M.; MENEZES, B. R. da S.; PEREIRA, A. V. |
|
Afiliação: |
ERINA VITÓRIO RODRIGUES, Universidade de Brasília; ROGÉRIO FIGUEIREDO DAHER, Universidade Estadual do Norte Fluminense Darcy Ribeiro; GERALDO DE AMARAL GRAVINA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ALEXANDRE PIO VIANA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; MARIA DO SOCORRO BEZERRA DE ARAÚJO, Universidade Estadual do Norte Fluminense Darcy Ribeiro; MARIA LORRAINE FONSECA OLIVEIRA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; MARCELO VIVAS, Universidade Estadual do Norte Fluminense Darcy Ribeiro; BRUNA RAFAELA DA SILVA MENEZES, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ANTONIO VANDER PEREIRA, CNPGL. |
|
Título: |
Repeatability estimates and minimum number of evaluations for selection of elephant-grass genotypes for forage production. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Bioscience Journal, v. 36, n. 1, p. 30-41, Jan./Feb. 2020. |
|
DOI: |
http://dx.doi.org/10.14393/BJ-v36n1a2020-42075 |
|
Idioma: |
Inglês |
|
Conteúdo: |
In forage-plants breeding, the selection of superior genotypes has been undertaken through successive harvests in previously established intervals. However, this process involves many steps, the evaluation of many traits, and a great spending with costs and labor. Thus the estimate of the repeatability is essential in improvement of perennials, it allows predicting genotypic value of the individual, the minimum number of evaluations in the selection of genotypes and minimizes resources and time in the selection of promising individuals. The objective of this study was to estimate the repeatability coefficient for morphological traits in elephant grass and determine the number of evaluations needed for phenotypic selection more efficient. The experimental randomized block design with 53 genotypes and two replications. The repeatability coefficients were estimated for variables plant height, number of tillers, stem diameter and dry matter yield, using the methods of Anova, Principal Components and Structural Analysis. We observed significant differences between genotypes (P <0.01) for all variables. The main components provide larger estimates of repeatability when compared to other methods. Estimates of the repeatability coefficients are of high magnitude average for the variables plant height (0.44) number of tillers (0.44) and stem diameter (0.63) and low magnitude for dry matter production (0.27). The Principal Components method requires five, five, two and eleven measurements for plant height, number of tillers, stem diameter and dry matter yield, respectively, with 80% reliability. MenosIn forage-plants breeding, the selection of superior genotypes has been undertaken through successive harvests in previously established intervals. However, this process involves many steps, the evaluation of many traits, and a great spending with costs and labor. Thus the estimate of the repeatability is essential in improvement of perennials, it allows predicting genotypic value of the individual, the minimum number of evaluations in the selection of genotypes and minimizes resources and time in the selection of promising individuals. The objective of this study was to estimate the repeatability coefficient for morphological traits in elephant grass and determine the number of evaluations needed for phenotypic selection more efficient. The experimental randomized block design with 53 genotypes and two replications. The repeatability coefficients were estimated for variables plant height, number of tillers, stem diameter and dry matter yield, using the methods of Anova, Principal Components and Structural Analysis. We observed significant differences between genotypes (P <0.01) for all variables. The main components provide larger estimates of repeatability when compared to other methods. Estimates of the repeatability coefficients are of high magnitude average for the variables plant height (0.44) number of tillers (0.44) and stem diameter (0.63) and low magnitude for dry matter production (0.27). The Principal Components method requires five, five, two and eleven measurem... Mostrar Tudo |
|
Palavras-Chave: |
Coefficient of determination; Dry matter yield; Main components. |
|
Thesagro: |
Capim Elefante; Forragem; Matéria Seca; Pennisetum Purpureum. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225234/1/Repeatability-estimates.pdf
|
|
Marc: |
LEADER 02605naa a2200313 a 4500
001 2133624
005 2021-08-17
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.14393/BJ-v36n1a2020-42075$2DOI
100 1 $aRODRIGUES, E. V.
245 $aRepeatability estimates and minimum number of evaluations for selection of elephant-grass genotypes for forage production.$h[electronic resource]
260 $c2020
520 $aIn forage-plants breeding, the selection of superior genotypes has been undertaken through successive harvests in previously established intervals. However, this process involves many steps, the evaluation of many traits, and a great spending with costs and labor. Thus the estimate of the repeatability is essential in improvement of perennials, it allows predicting genotypic value of the individual, the minimum number of evaluations in the selection of genotypes and minimizes resources and time in the selection of promising individuals. The objective of this study was to estimate the repeatability coefficient for morphological traits in elephant grass and determine the number of evaluations needed for phenotypic selection more efficient. The experimental randomized block design with 53 genotypes and two replications. The repeatability coefficients were estimated for variables plant height, number of tillers, stem diameter and dry matter yield, using the methods of Anova, Principal Components and Structural Analysis. We observed significant differences between genotypes (P <0.01) for all variables. The main components provide larger estimates of repeatability when compared to other methods. Estimates of the repeatability coefficients are of high magnitude average for the variables plant height (0.44) number of tillers (0.44) and stem diameter (0.63) and low magnitude for dry matter production (0.27). The Principal Components method requires five, five, two and eleven measurements for plant height, number of tillers, stem diameter and dry matter yield, respectively, with 80% reliability.
650 $aCapim Elefante
650 $aForragem
650 $aMatéria Seca
650 $aPennisetum Purpureum
653 $aCoefficient of determination
653 $aDry matter yield
653 $aMain components
700 1 $aDAHER, R. F.
700 1 $aGRAVINA, G. de A.
700 1 $aVIANA, A. P.
700 1 $aARAUJO, M. do S. B. de
700 1 $aOLIVEIRA, M. L. F.
700 1 $aVIVAS, M.
700 1 $aMENEZES, B. R. da S.
700 1 $aPEREIRA, A. V.
773 $tBioscience Journal$gv. 36, n. 1, p. 30-41, Jan./Feb. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
|
Data corrente: |
06/03/2017 |
|
Data da última atualização: |
06/03/2017 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
SOMBRA, K. E. S.; SANTOS FILHO, L. G. dos S.; RODRIGUES, A. J. O.; SILVA, R. I. R.; PASSOS, O. S.; BASTOS, D. C. |
|
Afiliação: |
KÁSSIO EWERTON SANTOS SOMBRA, IFCE – Limoeiro do Norte, CE; LUIZ GONZAGA DOS SANTOS FILHO, IFCE - Limoeiro do Norte, CE; ANA JANAINA OLIVEIRA RODRIGUES, IFCE - Limoeiro do Norte, CE; RAIMUNDO IVAN REMÍGIO SILVA, IFCE - Limoeiro do Norte, CE; ORLANDO SAMPAIO PASSOS, CNPMF; DEBORA COSTA BASTOS, CPATSA. |
|
Título: |
Desenvolvimento inicial de laranjeira Westin sobre porta-enxertos e espaçamento adensado no Semiárido do Ceará. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
In: FEIRA INTERNACIONAL DA FRUTICULTURA TROPICAL IRRIGADA - EXPOFRUIT, 2016, Mossoró. Mais longevidade para você e seus negócios. Mossoró: COEX: SEBRAE: UFERSA, 2016. |
|
Idioma: |
Português |
|
Conteúdo: |
O trabalho teve objetivo de avaliar o desenvolvimento vegetativo inicial de laranjeira Westin CNPMF sobre diferentes porta-enxertos de citros nas condições de Semiárido Cearense. |
|
Palavras-Chave: |
Desenvolvimento vegetativo; Orange; Variedade Westin. |
|
Thesagro: |
ESpaçamento; Laranja; Porta enxerto. |
|
Thesaurus NAL: |
Citrus. |
|
Categoria do assunto: |
A Sistemas de Cultivo |
|
Marc: |
LEADER 01091naa a2200265 a 4500
001 2066186
005 2017-03-06
008 2016 bl uuuu u00u1 u #d
100 1 $aSOMBRA, K. E. S.
245 $aDesenvolvimento inicial de laranjeira Westin sobre porta-enxertos e espaçamento adensado no Semiárido do Ceará.$h[electronic resource]
260 $c2016
520 $aO trabalho teve objetivo de avaliar o desenvolvimento vegetativo inicial de laranjeira Westin CNPMF sobre diferentes porta-enxertos de citros nas condições de Semiárido Cearense.
650 $aCitrus
650 $aESpaçamento
650 $aLaranja
650 $aPorta enxerto
653 $aDesenvolvimento vegetativo
653 $aOrange
653 $aVariedade Westin
700 1 $aSANTOS FILHO, L. G. dos S.
700 1 $aRODRIGUES, A. J. O.
700 1 $aSILVA, R. I. R.
700 1 $aPASSOS, O. S.
700 1 $aBASTOS, D. C.
773 $tIn: FEIRA INTERNACIONAL DA FRUTICULTURA TROPICAL IRRIGADA - EXPOFRUIT, 2016, Mossoró. Mais longevidade para você e seus negócios. Mossoró: COEX: SEBRAE: UFERSA, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
|
Nenhum exemplar cadastrado para este documento. |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
