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 | Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
07/01/2015 |
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Data da última atualização: |
07/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FONSECA, A. F. A. da.; SEDIYAMA, T.; CRUZ, C. D.; SAKIYAMA, N. S.; FERRÃO, R. G.; FERRÃO, M. A. G.; BRAGANÇA, S. M. |
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Afiliação: |
Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café; Romário Gava Ferrão, Incaper; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Scheilla Marina Bragança, Incaper. |
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Título: |
Repeatability and number of harvests required for selection in robusta coffee. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Crop Breeding in Applied Biotechnology, Viçosa, MG, v. 4, n. 3, p. 325-329, Sept. 2004 |
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DOI: |
10.12702/1984-7033.v04n03a10 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to estimate the repeatability coefficient of the grain yield in Coffea canephora by three methods: to quantify the precision of the measurements; to predict the real value of an individual based on n evaluations; and to determine the number of phenotypic measures required in each plant to obtain an adequate precision level for an efficient discrimination of the genotypes. The coefficients of repeatability and determination were estimated based on four harvests of 80 genotypes. Highest estimates of the repeatability coefficient were obtained by the method of the principal components derived from the matrix of covariances, which expresses the correlation between each measurement pair. The prediction precision of the real individual value ranged from 65.32 to 81.59%, and remained practically unchanged from the sixth harvest on.
Este trabalho objetivou estimar o coeficiente de repetibilidade da produção de grãos em Coffea canephora, por três métodos, visando quantificar a precisão das medidas, predizer o valor real do indivíduo com base em n avaliações e determinar o número de medidas fenotípicas que devem ser tomadas em cada indivíduo para que se obtenha o nível de precisão adequado na discriminação eficiente de genótipos. Os coeficientes de repetibilidade e de determinação foram estimados com base em quatro colheitas de 80 genótipos. As maiores estimativas do coeficiente de repetibilidade foram obtidas pelo método dos componentes principais obtidos da matriz de covariâncias, que considera a correlação entre cada par de medições. A precisão na predição do valor real dos indivíduos variou de 65,32 a 81,59%, e tornou-se praticamente inalterada a partir da sexta colheita. MenosThis study aimed to estimate the repeatability coefficient of the grain yield in Coffea canephora by three methods: to quantify the precision of the measurements; to predict the real value of an individual based on n evaluations; and to determine the number of phenotypic measures required in each plant to obtain an adequate precision level for an efficient discrimination of the genotypes. The coefficients of repeatability and determination were estimated based on four harvests of 80 genotypes. Highest estimates of the repeatability coefficient were obtained by the method of the principal components derived from the matrix of covariances, which expresses the correlation between each measurement pair. The prediction precision of the real individual value ranged from 65.32 to 81.59%, and remained practically unchanged from the sixth harvest on.
Este trabalho objetivou estimar o coeficiente de repetibilidade da produção de grãos em Coffea canephora, por três métodos, visando quantificar a precisão das medidas, predizer o valor real do indivíduo com base em n avaliações e determinar o número de medidas fenotípicas que devem ser tomadas em cada indivíduo para que se obtenha o nível de precisão adequado na discriminação eficiente de genótipos. Os coeficientes de repetibilidade e de determinação foram estimados com base em quatro colheitas de 80 genótipos. As maiores estimativas do coeficiente de repetibilidade foram obtidas pelo método dos componentes principais obtidos da matriz d... Mostrar Tudo |
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Thesaurus NAL: |
Coffea canephora; Genetic improvement; Repeatability; Robusta coffee. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02528naa a2200253 a 4500
001 1004804
005 2015-01-07
008 2004 bl uuuu u00u1 u #d
024 7 $a10.12702/1984-7033.v04n03a10$2DOI
100 1 $aFONSECA, A. F. A. da.
245 $aRepeatability and number of harvests required for selection in robusta coffee.$h[electronic resource]
260 $c2004
520 $aThis study aimed to estimate the repeatability coefficient of the grain yield in Coffea canephora by three methods: to quantify the precision of the measurements; to predict the real value of an individual based on n evaluations; and to determine the number of phenotypic measures required in each plant to obtain an adequate precision level for an efficient discrimination of the genotypes. The coefficients of repeatability and determination were estimated based on four harvests of 80 genotypes. Highest estimates of the repeatability coefficient were obtained by the method of the principal components derived from the matrix of covariances, which expresses the correlation between each measurement pair. The prediction precision of the real individual value ranged from 65.32 to 81.59%, and remained practically unchanged from the sixth harvest on. Este trabalho objetivou estimar o coeficiente de repetibilidade da produção de grãos em Coffea canephora, por três métodos, visando quantificar a precisão das medidas, predizer o valor real do indivíduo com base em n avaliações e determinar o número de medidas fenotípicas que devem ser tomadas em cada indivíduo para que se obtenha o nível de precisão adequado na discriminação eficiente de genótipos. Os coeficientes de repetibilidade e de determinação foram estimados com base em quatro colheitas de 80 genótipos. As maiores estimativas do coeficiente de repetibilidade foram obtidas pelo método dos componentes principais obtidos da matriz de covariâncias, que considera a correlação entre cada par de medições. A precisão na predição do valor real dos indivíduos variou de 65,32 a 81,59%, e tornou-se praticamente inalterada a partir da sexta colheita.
650 $aCoffea canephora
650 $aGenetic improvement
650 $aRepeatability
650 $aRobusta coffee
700 1 $aSEDIYAMA, T.
700 1 $aCRUZ, C. D.
700 1 $aSAKIYAMA, N. S.
700 1 $aFERRÃO, R. G.
700 1 $aFERRÃO, M. A. G.
700 1 $aBRAGANÇA, S. M.
773 $tCrop Breeding in Applied Biotechnology, Viçosa, MG$gv. 4, n. 3, p. 325-329, Sept. 2004
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Biblioteca Rui Tendinha (BRT) |
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| Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
|
Registro Completo |
|
Biblioteca(s): |
Biblioteca Rui Tendinha. |
|
Data corrente: |
07/08/2023 |
|
Data da última atualização: |
07/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOMES, W. dos S.; PEREIRA, L. L.; LUZ, J. M. R. da; OLIVEIRA, E. C. da S.; GUARÇONI, R. G.; MOREIRA, T. R.; FILETE, C. A.; MORELI, A. P.; PARTELLI, F. L. |
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Afiliação: |
Willian dos Santos Gomes; Lucas Louzada Pereira; José Maria Rodrigues da Luz; Emanuele Catarina da Silva Oliveira; Rogerio Carvalho Guarçoni, Incaper; Taís Rizzo Moreira; Cristhiane Altoé Filete; Aldemar Polonini Moreli; Fábio Luiz Partelli. |
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Título: |
Preliminary study of variation in quality of fermented Coffea canephora genotypes using sensory assessment and mid-infrared spectroscopy. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Eur Food Res Technol, 2023. |
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DOI: |
10.1007/s00217-023-04339-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee is one of the most widely consumed beverages in the world. The genetic variability of Coffea canephora has demonstrated significant differences in the chemical compositions of genotypes, resulting in different sensory profiles in the beverage. Fermentation can also affect the sensory quality of coffee beverage. Therefore, the objective of this study was to analyze the sensory profile and the chemical groups that contribute to the sensory qualities of the coffee beverage of C. canephora var. Conilon genotypes subjected to different fermentation processes. Fermentations were carried out with 4 L of cherry coffee or peeled cherry coffee for 36 h at 25 ?. In the induced fermentation, the initial Colony Forming Unit (CFU/mL) was of 107 for Saccharomyces cerevisiae, Klebsiella sp, and Lactobacillus brevis. There was no microbial inoculation in the washed fermentation and the natural process. The sensory quality and chemical groups of the coffee were determined using the Uganda Coffee Development Authority Sensory Analysis Protocol with 6 Q-Graders and mid-infrared spectroscopy, respectively. The sensory and spectrometry analyses were able to distinguish the genotypes, highlighting the separations of genotypes A1 and Verdim with the worst sensory results, and genotype 153 with the best result. Groups formation through the mean Euclidean distance reinforces the sensory differences between fermentations. Furthermore, the greatest chemical changes in coffee beans were promoted by fermentation induced by S. cerevisiae. Thus, the genotypes and the type of fermentation influence in the sensory quality demonstrating potential for optimizing fermentations to improve the sensory quality of conilon coffee. MenosCoffee is one of the most widely consumed beverages in the world. The genetic variability of Coffea canephora has demonstrated significant differences in the chemical compositions of genotypes, resulting in different sensory profiles in the beverage. Fermentation can also affect the sensory quality of coffee beverage. Therefore, the objective of this study was to analyze the sensory profile and the chemical groups that contribute to the sensory qualities of the coffee beverage of C. canephora var. Conilon genotypes subjected to different fermentation processes. Fermentations were carried out with 4 L of cherry coffee or peeled cherry coffee for 36 h at 25 ?. In the induced fermentation, the initial Colony Forming Unit (CFU/mL) was of 107 for Saccharomyces cerevisiae, Klebsiella sp, and Lactobacillus brevis. There was no microbial inoculation in the washed fermentation and the natural process. The sensory quality and chemical groups of the coffee were determined using the Uganda Coffee Development Authority Sensory Analysis Protocol with 6 Q-Graders and mid-infrared spectroscopy, respectively. The sensory and spectrometry analyses were able to distinguish the genotypes, highlighting the separations of genotypes A1 and Verdim with the worst sensory results, and genotype 153 with the best result. Groups formation through the mean Euclidean distance reinforces the sensory differences between fermentations. Furthermore, the greatest chemical changes in coffee beans were promoted ... Mostrar Tudo |
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Palavras-Chave: |
Café conilon. |
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Thesagro: |
Coffea Canephora; Qualidade. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02534naa a2200265 a 4500
001 1025022
005 2023-08-07
008 2023 bl uuuu u00u1 u #d
024 7 $a10.1007/s00217-023-04339-1$2DOI
100 1 $aGOMES, W. dos S.
245 $aPreliminary study of variation in quality of fermented Coffea canephora genotypes using sensory assessment and mid-infrared spectroscopy.$h[electronic resource]
260 $c2023
520 $aCoffee is one of the most widely consumed beverages in the world. The genetic variability of Coffea canephora has demonstrated significant differences in the chemical compositions of genotypes, resulting in different sensory profiles in the beverage. Fermentation can also affect the sensory quality of coffee beverage. Therefore, the objective of this study was to analyze the sensory profile and the chemical groups that contribute to the sensory qualities of the coffee beverage of C. canephora var. Conilon genotypes subjected to different fermentation processes. Fermentations were carried out with 4 L of cherry coffee or peeled cherry coffee for 36 h at 25 ?. In the induced fermentation, the initial Colony Forming Unit (CFU/mL) was of 107 for Saccharomyces cerevisiae, Klebsiella sp, and Lactobacillus brevis. There was no microbial inoculation in the washed fermentation and the natural process. The sensory quality and chemical groups of the coffee were determined using the Uganda Coffee Development Authority Sensory Analysis Protocol with 6 Q-Graders and mid-infrared spectroscopy, respectively. The sensory and spectrometry analyses were able to distinguish the genotypes, highlighting the separations of genotypes A1 and Verdim with the worst sensory results, and genotype 153 with the best result. Groups formation through the mean Euclidean distance reinforces the sensory differences between fermentations. Furthermore, the greatest chemical changes in coffee beans were promoted by fermentation induced by S. cerevisiae. Thus, the genotypes and the type of fermentation influence in the sensory quality demonstrating potential for optimizing fermentations to improve the sensory quality of conilon coffee.
650 $aCoffea Canephora
650 $aQualidade
653 $aCafé conilon
700 1 $aPEREIRA, L. L.
700 1 $aLUZ, J. M. R. da
700 1 $aOLIVEIRA, E. C. da S.
700 1 $aGUARÇONI, R. G.
700 1 $aMOREIRA, T. R.
700 1 $aFILETE, C. A.
700 1 $aMORELI, A. P.
700 1 $aPARTELLI, F. L.
773 $tEur Food Res Technol, 2023.
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