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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
04/07/2019 |
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Data da última atualização: |
02/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FERREIRA, T. de O.; COSTA, R. R. da; FÉLIX, D. T.; ANDRADE NETO, E. R. de; CRUZ, M. de M.; LIMA, M. A. C. de. |
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Afiliação: |
Talita de Oliveira Ferreira; Rayssa Ribeiro da Costa; Débora Tamara Félix; Eugenio Ribeiro de Andrade Neto; Maísa de Macedo Cruz; MARIA AUXILIADORA COELHO DE LIMA, CPATSA. |
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Título: |
Quality and antioxidant potential of BRS Magna grapes harvested in the first half of the year under different training systems and rootstocks in a tropical region. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, v. 43, p. 1-12, 2019. |
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ISSN: |
1981-1829 |
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DOI: |
10.1590/1413-7054201943029518 |
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Idioma: |
Inglês |
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Conteúdo: |
The Submedium São Francisco Valley is renowned for its particular conditions for cultivating grapes for different uses. The production of grapes for juice is relatively recent, and thus, knowledge is still limited on components of the production system. The aim of this study was to characterize the quality and antioxidant activity of ?BRS Magna? grapes in irrigated crops of the Submedium São Francisco River Valley under the influence of training systems and rootstocks, in production cycles of the first half of the year. The experiment was conducted in the Experimental Field of Bebedouro/Embrapa Semiárido, in Petrolina, Pernambuco, Brazil. The following were studied: overhead trellis, lyre, and vertical shoot positioning (VSP) systems and rootstocks ?IAC 572? and ?IAC 766?, in the production cycles corresponding to the first halves of 2017 and 2018. Experimental design was in randomized blocks, with sub-subplots through time and four replicates. Overall, responses depended on training systems, rootstocks, and production cycles, which determined specific traits of the grapes. Production in the first half of 2018 was characterized by high anthocyanin contents, high total extractable polyphenols, and higher antioxidant activity, and responses were differentiated according to training system and rootstock. Plants trained to overhead trellis and grafted on ?IAC 572? had higher accumulation of total extractable polyphenols and antioxidant activity in berries. Plants trained to VSP had increased sugar, yellow flavonoid, and anthocyanin contents in berries while lyre training system led to higher bunch mass. MenosThe Submedium São Francisco Valley is renowned for its particular conditions for cultivating grapes for different uses. The production of grapes for juice is relatively recent, and thus, knowledge is still limited on components of the production system. The aim of this study was to characterize the quality and antioxidant activity of ?BRS Magna? grapes in irrigated crops of the Submedium São Francisco River Valley under the influence of training systems and rootstocks, in production cycles of the first half of the year. The experiment was conducted in the Experimental Field of Bebedouro/Embrapa Semiárido, in Petrolina, Pernambuco, Brazil. The following were studied: overhead trellis, lyre, and vertical shoot positioning (VSP) systems and rootstocks ?IAC 572? and ?IAC 766?, in the production cycles corresponding to the first halves of 2017 and 2018. Experimental design was in randomized blocks, with sub-subplots through time and four replicates. Overall, responses depended on training systems, rootstocks, and production cycles, which determined specific traits of the grapes. Production in the first half of 2018 was characterized by high anthocyanin contents, high total extractable polyphenols, and higher antioxidant activity, and responses were differentiated according to training system and rootstock. Plants trained to overhead trellis and grafted on ?IAC 572? had higher accumulation of total extractable polyphenols and antioxidant activity in berries. Plants trained to VSP ... Mostrar Tudo |
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Palavras-Chave: |
Compostos bioativos; Uvas híbridas; Uvas para suco; Vale do São Francisco. |
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Thesagro: |
Porta Enxerto; Suco de Fruta; Uva. |
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Thesaurus Nal: |
Bioactive compounds; Grape juice; Grapes. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199158/1/1981-1829-cagro-43-e029518.pdf
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Marc: |
LEADER 02639naa a2200325 a 4500
001 2110363
005 2019-12-02
008 2019 bl uuuu u00u1 u #d
022 $a1981-1829
024 7 $a10.1590/1413-7054201943029518$2DOI
100 1 $aFERREIRA, T. de O.
245 $aQuality and antioxidant potential of BRS Magna grapes harvested in the first half of the year under different training systems and rootstocks in a tropical region.$h[electronic resource]
260 $c2019
520 $aThe Submedium São Francisco Valley is renowned for its particular conditions for cultivating grapes for different uses. The production of grapes for juice is relatively recent, and thus, knowledge is still limited on components of the production system. The aim of this study was to characterize the quality and antioxidant activity of ?BRS Magna? grapes in irrigated crops of the Submedium São Francisco River Valley under the influence of training systems and rootstocks, in production cycles of the first half of the year. The experiment was conducted in the Experimental Field of Bebedouro/Embrapa Semiárido, in Petrolina, Pernambuco, Brazil. The following were studied: overhead trellis, lyre, and vertical shoot positioning (VSP) systems and rootstocks ?IAC 572? and ?IAC 766?, in the production cycles corresponding to the first halves of 2017 and 2018. Experimental design was in randomized blocks, with sub-subplots through time and four replicates. Overall, responses depended on training systems, rootstocks, and production cycles, which determined specific traits of the grapes. Production in the first half of 2018 was characterized by high anthocyanin contents, high total extractable polyphenols, and higher antioxidant activity, and responses were differentiated according to training system and rootstock. Plants trained to overhead trellis and grafted on ?IAC 572? had higher accumulation of total extractable polyphenols and antioxidant activity in berries. Plants trained to VSP had increased sugar, yellow flavonoid, and anthocyanin contents in berries while lyre training system led to higher bunch mass.
650 $aBioactive compounds
650 $aGrape juice
650 $aGrapes
650 $aPorta Enxerto
650 $aSuco de Fruta
650 $aUva
653 $aCompostos bioativos
653 $aUvas híbridas
653 $aUvas para suco
653 $aVale do São Francisco
700 1 $aCOSTA, R. R. da
700 1 $aFÉLIX, D. T.
700 1 $aANDRADE NETO, E. R. de
700 1 $aCRUZ, M. de M.
700 1 $aLIMA, M. A. C. de
773 $tCiência e Agrotecnologia$gv. 43, p. 1-12, 2019.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Pantanal. |
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Data corrente: |
27/04/2022 |
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Data da última atualização: |
27/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
ABREU, U. G. P. de; LIMA, L. D. de; ALBUQUERQUE, F. H. M. A. R. de; SOUZA, J. D. F. de. |
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Afiliação: |
URBANO GOMES PINTO DE ABREU, CPAP; LISIANE DORNELES DE LIMA, CNPC; FERNANDO HENRIQUE MELO ANDRADE RODRIGUES DE ALBUQUERQUE, CNPC; JUAN DIEGO FERELLI DE SOUZA, CNPM. |
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Título: |
Efficiency modeling, an important factor in the development of sheep and goat production in a semiarid region. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Brazilian Journal of Development, Curitiba, v. 8, n. 4, p. 28680-28692, apr. 2022. |
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DOI: |
10.34117/bjdv8n4-385 |
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Idioma: |
Inglês |
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Conteúdo: |
The paper aims to use the Data Envelopment Analysis (DEA) approach to evaluate the performance of sheep and goat production systems in the semi-arid region in Brazil. By applying a questionnaire with 127 variables, we obtained information from 254 producers in the municipality of Tauá - CE, with the input variables number of sheep and number of cattle, and the output variable of revenues from animal production. The DEA model with constant returns to scale (RCE) and variable returns to scale (RVE) and were used. The average technical efficiency measures of RCE and RVE models were 9.72% and 23.65% for all farmers. Only two and eight producers obtained efficiency equal to one (maximum) in RCE and RVE, respectively. Most producers operate in terms of increasing returns, and are inefficient. That is, the vast majority of producers are working below the optimum scale, which leads to the exclusion of producers.
[Modelagem da eficiência, fator importante para o desenvolvimento da ovinocaprinocultura, dos produtores do Semiárido].
O artigo propõe a utilização da Análise Envoltória de Dados (DEA) para avaliar o desempenho de sistemas de ovinocaprinocultura no semiárido do Brasil. Por meio de questionário com 127 variáveis, foram coletadas informações de 254 produtores do município de Tauá -CE, as varáveis de input número de ovinos e número de bovinos, e a variável output receita com produção animal. Foi realizada a modelagem DEA de orientação produto com retornos constantes à escala (RCE), e com retornos variáveis à escala (RVE). As medidas de eficiência técnica médias dos modelos RCE e RVE foram 9,72% e 23,65%, no conjunto de todos os produtores. Apenas dois e oito produtores obtiveram eficiência igual a um (máxima) na modelagem RCE e RVE, respectivamente.Observamos que a grande maioria dos produtores operam na faixa de retorno crescente, e são ineficientes. Ou seja, a maioria dos produtores está trabalhando abaixo da escala ótima. MenosThe paper aims to use the Data Envelopment Analysis (DEA) approach to evaluate the performance of sheep and goat production systems in the semi-arid region in Brazil. By applying a questionnaire with 127 variables, we obtained information from 254 producers in the municipality of Tauá - CE, with the input variables number of sheep and number of cattle, and the output variable of revenues from animal production. The DEA model with constant returns to scale (RCE) and variable returns to scale (RVE) and were used. The average technical efficiency measures of RCE and RVE models were 9.72% and 23.65% for all farmers. Only two and eight producers obtained efficiency equal to one (maximum) in RCE and RVE, respectively. Most producers operate in terms of increasing returns, and are inefficient. That is, the vast majority of producers are working below the optimum scale, which leads to the exclusion of producers.
[Modelagem da eficiência, fator importante para o desenvolvimento da ovinocaprinocultura, dos produtores do Semiárido].
O artigo propõe a utilização da Análise Envoltória de Dados (DEA) para avaliar o desempenho de sistemas de ovinocaprinocultura no semiárido do Brasil. Por meio de questionário com 127 variáveis, foram coletadas informações de 254 produtores do município de Tauá -CE, as varáveis de input número de ovinos e número de bovinos, e a variável output receita com produção animal. Foi realizada a modelagem DEA de orientação produto com retornos constantes à esc... Mostrar Tudo |
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Palavras-Chave: |
Constant returns; Production system; Retorno constante; Retorno variável; Variable returns. |
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Thesagro: |
Caprino; Caprinocultura; Ovino; Ovinocultura; Sistema de Produção. |
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Thesaurus NAL: |
Animal production; Economic performance; Goats; Input output analysis; Semiarid zones; Sheep; Systems analysis. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1142439/1/Efficiency-modeling-an-important-factor-in-the-development-of-sheep-and-goat-production-in-a-semiarid-region-2022.pdf
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Marc: |
LEADER 03126naa a2200373 a 4500
001 2142439
005 2022-04-27
008 2022 bl uuuu u00u1 u #d
024 7 $a10.34117/bjdv8n4-385$2DOI
100 1 $aABREU, U. G. P. de
245 $aEfficiency modeling, an important factor in the development of sheep and goat production in a semiarid region.$h[electronic resource]
260 $c2022
520 $aThe paper aims to use the Data Envelopment Analysis (DEA) approach to evaluate the performance of sheep and goat production systems in the semi-arid region in Brazil. By applying a questionnaire with 127 variables, we obtained information from 254 producers in the municipality of Tauá - CE, with the input variables number of sheep and number of cattle, and the output variable of revenues from animal production. The DEA model with constant returns to scale (RCE) and variable returns to scale (RVE) and were used. The average technical efficiency measures of RCE and RVE models were 9.72% and 23.65% for all farmers. Only two and eight producers obtained efficiency equal to one (maximum) in RCE and RVE, respectively. Most producers operate in terms of increasing returns, and are inefficient. That is, the vast majority of producers are working below the optimum scale, which leads to the exclusion of producers. [Modelagem da eficiência, fator importante para o desenvolvimento da ovinocaprinocultura, dos produtores do Semiárido]. O artigo propõe a utilização da Análise Envoltória de Dados (DEA) para avaliar o desempenho de sistemas de ovinocaprinocultura no semiárido do Brasil. Por meio de questionário com 127 variáveis, foram coletadas informações de 254 produtores do município de Tauá -CE, as varáveis de input número de ovinos e número de bovinos, e a variável output receita com produção animal. Foi realizada a modelagem DEA de orientação produto com retornos constantes à escala (RCE), e com retornos variáveis à escala (RVE). As medidas de eficiência técnica médias dos modelos RCE e RVE foram 9,72% e 23,65%, no conjunto de todos os produtores. Apenas dois e oito produtores obtiveram eficiência igual a um (máxima) na modelagem RCE e RVE, respectivamente.Observamos que a grande maioria dos produtores operam na faixa de retorno crescente, e são ineficientes. Ou seja, a maioria dos produtores está trabalhando abaixo da escala ótima.
650 $aAnimal production
650 $aEconomic performance
650 $aGoats
650 $aInput output analysis
650 $aSemiarid zones
650 $aSheep
650 $aSystems analysis
650 $aCaprino
650 $aCaprinocultura
650 $aOvino
650 $aOvinocultura
650 $aSistema de Produção
653 $aConstant returns
653 $aProduction system
653 $aRetorno constante
653 $aRetorno variável
653 $aVariable returns
700 1 $aLIMA, L. D. de
700 1 $aALBUQUERQUE, F. H. M. A. R. de
700 1 $aSOUZA, J. D. F. de
773 $tBrazilian Journal of Development, Curitiba$gv. 8, n. 4, p. 28680-28692, apr. 2022.
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Registro original: |
Embrapa Pantanal (CPAP) |
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