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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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Registro original: |
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: |
11/03/2024 |
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Data da última atualização: |
11/03/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, C. V. de.; VENTURA, J. A.; SILVA, D. M.; MATTOS, C. A. S. |
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Afiliação: |
Cássio VinÃcius de Souza, Incaper; Jose Aires Ventura, Incaper; Diolina Moura Silva, UFES; Carlos Alberto Sangali de Mattos, Incaper. |
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Título: |
Energy sustainability in viticulture in a hot climate region in Brazil. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Applied Fruit Science, v. 66, n. 1, 2024. |
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DOI: |
https://doi.org/10.1007/s10341-024-01056-1 |
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Idioma: |
Português |
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Conteúdo: |
On a global scale, agricultural systems consume approximately one third of the energy available on the planet. Viticulture is an important agricultural activity for Brazil, mainly due to the characteristics of family production and because it is a product with high added value. Studies addressing the energy balance in grape production in Brazil have rarely been conducted. The objective of this study was to evaluate the energy balance in family-based viticulture in a hot climate region in Brazil. The mean production data of 11 table grape orchards (Vitis labrusca L.), located in the municipality of Guarapari, state of EspÃrito Santo/Brazil, were used. The energy coefficient (MJ) of each component involved in the production process per hectare (ha) of cultivation was quantified. The energy inputs were categorized as direct and indirect energy. The study considered ripe grapes and vine pruning residues as available energy. The direct input energy accounted
for 60.62% (18,515.5MJ), and the indirect input accounted for 39.38% (12,027.01MJ). Renewable energy contributed 24% (7180.27MJ) and nonrenewable energy contributed 76% (23,362.24MJ) of the entries. The ripe grapes and pruning residues corresponded to 78%(192,771.88MJ) and 22% (52,820.00MJ), respectively, of the outputs. The total energy efficiency (TEE), grape energy efficiency (GEE) and grape energy conversion (GEC) were 8.04, 6.31, and 0.53kg MJ?1, respectively. The grape specific energy (GSE) and net available energy (NAE) were 1.87MJ kg?1 and 215,049.37MJ, respectively. The sustainability levels were considerably increased when the pruning residues were converted into viticulture inputs. MenosOn a global scale, agricultural systems consume approximately one third of the energy available on the planet. Viticulture is an important agricultural activity for Brazil, mainly due to the characteristics of family production and because it is a product with high added value. Studies addressing the energy balance in grape production in Brazil have rarely been conducted. The objective of this study was to evaluate the energy balance in family-based viticulture in a hot climate region in Brazil. The mean production data of 11 table grape orchards (Vitis labrusca L.), located in the municipality of Guarapari, state of EspÃrito Santo/Brazil, were used. The energy coefficient (MJ) of each component involved in the production process per hectare (ha) of cultivation was quantified. The energy inputs were categorized as direct and indirect energy. The study considered ripe grapes and vine pruning residues as available energy. The direct input energy accounted
for 60.62% (18,515.5MJ), and the indirect input accounted for 39.38% (12,027.01MJ). Renewable energy contributed 24% (7180.27MJ) and nonrenewable energy contributed 76% (23,362.24MJ) of the entries. The ripe grapes and pruning residues corresponded to 78%(192,771.88MJ) and 22% (52,820.00MJ), respectively, of the outputs. The total energy efficiency (TEE), grape energy efficiency (GEE) and grape energy conversion (GEC) were 8.04, 6.31, and 0.53kg MJ?1, respectively. The grape specific energy (GSE) and net available energy (NA... Mostrar Tudo |
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Palavras-Chave: |
Guarapari. |
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Thesagro: |
Agricultura Familiar; Uva; Viticultura. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02302naa a2200217 a 4500
001 1025523
005 2024-03-11
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10341-024-01056-1$2DOI
100 1 $aSOUZA, C. V. de.
245 $aEnergy sustainability in viticulture in a hot climate region in Brazil.$h[electronic resource]
260 $c2024
520 $aOn a global scale, agricultural systems consume approximately one third of the energy available on the planet. Viticulture is an important agricultural activity for Brazil, mainly due to the characteristics of family production and because it is a product with high added value. Studies addressing the energy balance in grape production in Brazil have rarely been conducted. The objective of this study was to evaluate the energy balance in family-based viticulture in a hot climate region in Brazil. The mean production data of 11 table grape orchards (Vitis labrusca L.), located in the municipality of Guarapari, state of EspÃrito Santo/Brazil, were used. The energy coefficient (MJ) of each component involved in the production process per hectare (ha) of cultivation was quantified. The energy inputs were categorized as direct and indirect energy. The study considered ripe grapes and vine pruning residues as available energy. The direct input energy accounted for 60.62% (18,515.5MJ), and the indirect input accounted for 39.38% (12,027.01MJ). Renewable energy contributed 24% (7180.27MJ) and nonrenewable energy contributed 76% (23,362.24MJ) of the entries. The ripe grapes and pruning residues corresponded to 78%(192,771.88MJ) and 22% (52,820.00MJ), respectively, of the outputs. The total energy efficiency (TEE), grape energy efficiency (GEE) and grape energy conversion (GEC) were 8.04, 6.31, and 0.53kg MJ?1, respectively. The grape specific energy (GSE) and net available energy (NAE) were 1.87MJ kg?1 and 215,049.37MJ, respectively. The sustainability levels were considerably increased when the pruning residues were converted into viticulture inputs.
650 $aAgricultura Familiar
650 $aUva
650 $aViticultura
653 $aGuarapari
700 1 $aVENTURA, J. A.
700 1 $aSILVA, D. M.
700 1 $aMATTOS, C. A. S.
773 $tApplied Fruit Science$gv. 66, n. 1, 2024.
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