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| 20. | | SALES, F. A.; CARAMORI, P. H.; RICCE, W. S.; COSTA, M. A. T.; ZARO, G. C. Biomass of elephant grass and leucaena for bioenergy production. Semina: Ciências Agrárias, Londrina, v. 36, n. 6, p. 3567-3578, 2015.| Biblioteca(s): Epagri-Sede. |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
10/08/2018 |
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Data da última atualização: |
10/08/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
RICCE, W. S.; ROBERTO, S. R.; PADRÃO, G. A.; CARAMORI, P. H. |
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Título: |
Grape harvest periods based on degree-days in Paraná state, Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Agronomy Science and Biotechnology, Londrina, PR, v. 4, n. 2, p. 59-69, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Grape harvest period can be decisive for greater profitability to grape growers and for production quality. Thus, the objective of this work was to evaluate grape harvest periods based on degree-days (DD) during different pruning periods and under the risk of frosts in the State of Paraná. Based on a series of maximum and minimum temperatures data from 21 conventional stations managed by IAPAR, from 1976 to 2010, this study evaluated the risk of frosts and the degree -days required to complete grapevine cycle in several regions of the state. Results showed that the occurrence of frosts is a restrictive factor for vine pruning in regions with higher altitudes and latitudes. For cultivars with low degree-days needs, results showed that in the Northeast of the state, harvest could occur from the second ten-day-period of September, when winter pruning is performed on July 5, making the commercialization during periods of less grapes offer. In this same region, cultivars with more needs of degree-days could be harvested between the first and second ten-day period of November. For the Central, Southern and Eastern regions, the risk of frosts in July is high and pruning may result in cold damages to new shoots and vines. Therefore, harvest must occur from January to May in these regions. |
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Palavras-Chave: |
Agroclimatic zoning; commercialization; frost; pruning period; Vitis sp. |
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Categoria do assunto: |
E Economia e Indústria Agrícola |
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Marc: |
LEADER 01944naa a2200217 a 4500
001 1127590
005 2018-08-10
008 2018 bl uuuu u00u1 u #d
100 1 $aRICCE, W. S.
245 $aGrape harvest periods based on degree-days in Paraná state, Brazil.$h[electronic resource]
260 $c2018
520 $aGrape harvest period can be decisive for greater profitability to grape growers and for production quality. Thus, the objective of this work was to evaluate grape harvest periods based on degree-days (DD) during different pruning periods and under the risk of frosts in the State of Paraná. Based on a series of maximum and minimum temperatures data from 21 conventional stations managed by IAPAR, from 1976 to 2010, this study evaluated the risk of frosts and the degree -days required to complete grapevine cycle in several regions of the state. Results showed that the occurrence of frosts is a restrictive factor for vine pruning in regions with higher altitudes and latitudes. For cultivars with low degree-days needs, results showed that in the Northeast of the state, harvest could occur from the second ten-day-period of September, when winter pruning is performed on July 5, making the commercialization during periods of less grapes offer. In this same region, cultivars with more needs of degree-days could be harvested between the first and second ten-day period of November. For the Central, Southern and Eastern regions, the risk of frosts in July is high and pruning may result in cold damages to new shoots and vines. Therefore, harvest must occur from January to May in these regions.
653 $aAgroclimatic zoning
653 $acommercialization
653 $afrost
653 $apruning period
653 $aVitis sp
700 1 $aROBERTO, S. R.
700 1 $aPADRÃO, G. A.
700 1 $aCARAMORI, P. H.
773 $tAgronomy Science and Biotechnology, Londrina, PR$gv. 4, n. 2, p. 59-69, 2018.
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