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Registro Completo |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
09/03/2018 |
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Data da última atualização: |
29/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREIRA, C. B.; TESSMANN, D. J.; SANTANA, R. G.; CONTRERAS-SOTO, R. I.; SOUZA, R. T. de; NAVES, R. de L. |
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Afiliação: |
Carolina Bertuzzi Pereira, Discente, Curso de Doutorado, Programa de Pós-Graduação em Agronomia, Proteção Vegetal, Universidade Estadual de Maringá, UEM, Maringá, PR, Brasil. E-mail: carol_bertuzzi@hotmail.com; Dauri José Tessmann, Prof. Dr., Departamento de Ciências Agrárias, UEM, Maringá, PR, Brasil. E-mail: djtessmann@gmail.com; Rosangela Getirana Santana, Profa Dra , Departamento de Estatística, UEM, Maringá, PR, Brasil. E-mail: rgsantana@uem.br; Rodrigo Iván Contreras-Soto, Prof. Dr. e Pesquisador, Instituto de Ciências Agronômicas, Universidad de O’Higgins, UOH, Rancagua, Chile e Centro de Estudios Avanzados en Fruticultura, CEAF, Rengo, Chile. E-mail: contrerasudec@gmail.com; REGINALDO TEODORO DE SOUZA, CNPUV; ROSEMEIRE DE LELLIS NAVES, CNPUV. |
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Título: |
Temporal dynamics and management of downy mildew on the table grape "BRS Vitória" in northern Paraná. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, Londrina, v. 39, n. 1, p. 19-28, jan./fev. 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Downy mildew caused by Plasmopara viticola is a major disease of grapes in Paraná State, Brazil and other wine-producing regions. The seedless table grape "BRS Vitória" stands out for its tolerance to this disease and is a viable alternative to reduce fungicide applications. The objectives of this study were to analyze the influence of weather-related factors, such as temperature and rainfall on disease progress and to evaluate the efficacy of fungicide spray programs for controlling downy mildew of grapes during the summer-fall and winter-spring crop seasons in northern Paraná, Brazil. Field trials were conducted in Marialva, Paraná, during the winter-spring crop seasons (August to December) in 2013 and 2014 and the summer-fall crop seasons (January to May) in 2014 and 2015. The experimental design used was completely randomized with repeated measurements over the phenological periods, with five treatments and 10 replicates. The following treatments were compared: (1) conventional, in which fungicides were applied according to conventional standards; (2) preventive fungicide sprays every seven days; (3) preventive fungicide sprays every 14 days; (4) fungicide sprays after observing the first downy mildew symptoms; and (5) no fungicide sprays. In the conventional fungicide program, sprays were performed two or three times per week. Treatments 2 and 3 received sprayings between the start of branch budding and fruit ripening. In treatment 4, sprays started from the first occurrence of oil spot symptoms, and then, the applications were spaced every seven days until fruit ripening. The severity of disease was evaluated weekly. The disease was severe only in the 2014 and 2015 summer-fall crop seasons, reaching a maximum severity of 17.3% and 21.3% of the leaf area, respectively. The highest disease severity in the summer-fall crop seasons was associated with higher frequencies of rainy days and higher temperatures. Disease severity in conventional treatments did not differ from severity in treatments with sprayings made every seven and 14 days during the summer-fall crops in both years. Severity index on bunches were not observed for the evaluated trials. The seedless grape ?BRS Vitória? is less dependent on the use of fungicides to control downy mildew in northern Paraná. Key words: Control. Epidemiology. Plasmopara viticola. Vitis vinifera. MenosDowny mildew caused by Plasmopara viticola is a major disease of grapes in Paraná State, Brazil and other wine-producing regions. The seedless table grape "BRS Vitória" stands out for its tolerance to this disease and is a viable alternative to reduce fungicide applications. The objectives of this study were to analyze the influence of weather-related factors, such as temperature and rainfall on disease progress and to evaluate the efficacy of fungicide spray programs for controlling downy mildew of grapes during the summer-fall and winter-spring crop seasons in northern Paraná, Brazil. Field trials were conducted in Marialva, Paraná, during the winter-spring crop seasons (August to December) in 2013 and 2014 and the summer-fall crop seasons (January to May) in 2014 and 2015. The experimental design used was completely randomized with repeated measurements over the phenological periods, with five treatments and 10 replicates. The following treatments were compared: (1) conventional, in which fungicides were applied according to conventional standards; (2) preventive fungicide sprays every seven days; (3) preventive fungicide sprays every 14 days; (4) fungicide sprays after observing the first downy mildew symptoms; and (5) no fungicide sprays. In the conventional fungicide program, sprays were performed two or three times per week. Treatments 2 and 3 received sprayings between the start of branch budding and fruit ripening. In treatment 4, sprays started from the first occur... Mostrar Tudo |
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Palavras-Chave: |
BRS Vitória; Control; Controle; Disease; Grape; Grape (BRS Vitória); Seedless; Videira. |
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Thesagro: |
Doença de planta; Fungo; Míldio; Vitis Vinifera. |
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Thesaurus Nal: |
Downy mildew; Epidemiology; Fungicides; Plasmopara viticola. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/173773/1/Mildio-BRS-Vitoria-Semina.pdf
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Marc: |
LEADER 03420naa a2200373 a 4500
001 2088898
005 2019-04-29
008 2018 bl uuuu u00u1 u #d
100 1 $aPEREIRA, C. B.
245 $aTemporal dynamics and management of downy mildew on the table grape "BRS Vitória" in northern Paraná.$h[electronic resource]
260 $c2018
520 $aDowny mildew caused by Plasmopara viticola is a major disease of grapes in Paraná State, Brazil and other wine-producing regions. The seedless table grape "BRS Vitória" stands out for its tolerance to this disease and is a viable alternative to reduce fungicide applications. The objectives of this study were to analyze the influence of weather-related factors, such as temperature and rainfall on disease progress and to evaluate the efficacy of fungicide spray programs for controlling downy mildew of grapes during the summer-fall and winter-spring crop seasons in northern Paraná, Brazil. Field trials were conducted in Marialva, Paraná, during the winter-spring crop seasons (August to December) in 2013 and 2014 and the summer-fall crop seasons (January to May) in 2014 and 2015. The experimental design used was completely randomized with repeated measurements over the phenological periods, with five treatments and 10 replicates. The following treatments were compared: (1) conventional, in which fungicides were applied according to conventional standards; (2) preventive fungicide sprays every seven days; (3) preventive fungicide sprays every 14 days; (4) fungicide sprays after observing the first downy mildew symptoms; and (5) no fungicide sprays. In the conventional fungicide program, sprays were performed two or three times per week. Treatments 2 and 3 received sprayings between the start of branch budding and fruit ripening. In treatment 4, sprays started from the first occurrence of oil spot symptoms, and then, the applications were spaced every seven days until fruit ripening. The severity of disease was evaluated weekly. The disease was severe only in the 2014 and 2015 summer-fall crop seasons, reaching a maximum severity of 17.3% and 21.3% of the leaf area, respectively. The highest disease severity in the summer-fall crop seasons was associated with higher frequencies of rainy days and higher temperatures. Disease severity in conventional treatments did not differ from severity in treatments with sprayings made every seven and 14 days during the summer-fall crops in both years. Severity index on bunches were not observed for the evaluated trials. The seedless grape ?BRS Vitória? is less dependent on the use of fungicides to control downy mildew in northern Paraná. Key words: Control. Epidemiology. Plasmopara viticola. Vitis vinifera.
650 $aDowny mildew
650 $aEpidemiology
650 $aFungicides
650 $aPlasmopara viticola
650 $aDoença de planta
650 $aFungo
650 $aMíldio
650 $aVitis Vinifera
653 $aBRS Vitória
653 $aControl
653 $aControle
653 $aDisease
653 $aGrape
653 $aGrape (BRS Vitória)
653 $aSeedless
653 $aVideira
700 1 $aTESSMANN, D. J.
700 1 $aSANTANA, R. G.
700 1 $aCONTRERAS-SOTO, R. I.
700 1 $aSOUZA, R. T. de
700 1 $aNAVES, R. de L.
773 $tSemina: Ciências Agrárias, Londrina$gv. 39, n. 1, p. 19-28, jan./fev. 2018.
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Embrapa Uva e Vinho (CNPUV) |
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| 1. |  | PEREIRA, C. B.; TESSMANN, D. J.; SANTANA, R. G.; CONTRERAS-SOTO, R. I.; SOUZA, R. T. de; NAVES, R. de L. Temporal dynamics and management of downy mildew on the table grape "BRS Vitória" in northern Paraná. Semina: Ciências Agrárias, Londrina, v. 39, n. 1, p. 19-28, jan./fev. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Uva e Vinho. |
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