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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
22/09/2016 |
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Data da última atualização: |
22/09/2016 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
PETRI, J. L.; COUTO, M.; SEZERINO, A. A.; PINTO, E. S. P.; MISZINSKI, J. |
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Título: |
Monitoramento do frio - setembro de 2016. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Caçador: Epagri, 2016. |
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Páginas: |
5 p. |
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Idioma: |
Português |
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Conteúdo: |
As unidades de frio (UF) acumuladas de 01/04/2016 a 31/08/2016 foram superiores a média
histórica e aos últimos três anos em todos os locais monitorados, a exceção de São Joaquim que acumulou
UF abaixo da média histórica, bem como em comparação aos últimos três anos (Tabelas 1 e 2). Em todos
os locais o acúmulo de UF no período entre 01 de abril e 31 de Agosto de 2016 foi menor do que no ano
com maior acúmulo de UF da série histórica. No mês de agosto de 2016 houve uma redução no acúmulo
de UF, em relação aos últimos três meses, o que é normal. A média das temperaturas máximas e mínimas
em agosto de 2016 foram dentro da média histórica, observando-se em Caçador que a temperatura média
das máximas diárias ultrapassou os 20o C em diversos períodos (Figura 2 e 4). |
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Palavras-Chave: |
horas de frio; Unidades de frio. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01320nam a2200193 a 4500
001 1125528
005 2016-09-22
008 2016 bl uuuu t 00u1 u #d
100 1 $aPETRI, J. L.
245 $aMonitoramento do frio - setembro de 2016.$h[electronic resource]
260 $aCaçador: Epagri$c2016
300 $a5 p.
520 $aAs unidades de frio (UF) acumuladas de 01/04/2016 a 31/08/2016 foram superiores a média histórica e aos últimos três anos em todos os locais monitorados, a exceção de São Joaquim que acumulou UF abaixo da média histórica, bem como em comparação aos últimos três anos (Tabelas 1 e 2). Em todos os locais o acúmulo de UF no período entre 01 de abril e 31 de Agosto de 2016 foi menor do que no ano com maior acúmulo de UF da série histórica. No mês de agosto de 2016 houve uma redução no acúmulo de UF, em relação aos últimos três meses, o que é normal. A média das temperaturas máximas e mínimas em agosto de 2016 foram dentro da média histórica, observando-se em Caçador que a temperatura média das máximas diárias ultrapassou os 20o C em diversos períodos (Figura 2 e 4).
653 $ahoras de frio
653 $aUnidades de frio
700 1 $aCOUTO, M.
700 1 $aSEZERINO, A. A.
700 1 $aPINTO, E. S. P.
700 1 $aMISZINSKI, J.
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Registro original: |
Epagri-Sede (Epagri-Sede) |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
05/09/2023 |
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Data da última atualização: |
06/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CANALE, M. C.; NESI, C. N.; CASTILHOS, R. V. |
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Título: |
Abundance of Dalbulus maidis and impact of maize rayado fino disease on different genotypes in field conditions in Santa Catarina, Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Viçosa, MG, v. 48, 2023. |
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Idioma: |
Inglês |
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Conteúdo: |
Corn stunt complex disease has been a major problem to maize production in Brazil. Dalbulus maidis incidence can vary greatly over the years, as well as the occurrence of corn stunt diseases. Among the corn stunt pathogens, the maize rayado fino virus (MRFV) is involved in this disease complex. MRFV is persistently transmitted by the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) in a persistent propagative relationship. In this work, we assessed the abundance of D. maidis and rayado fino in experimental field plots with a commercial hybrid (P4285 VYHR) and an open pollinated variety (SCS156 Colorado) in the early phase of the planting in the late-sowing season, in two consecutive crop years (2020?21 and 2021?22), in Chapecó, Santa Catarina (South Brazil). Also, we evaluated the incidence of rayado fino and counted corn leafhoppers that were infesting MRFV-symptomatic and asymptomatic plants. D. maidis did not sort between the two maize genotypes in field conditions, but preferentially infests asymptomatic plants. This could be an evidence for the vector manipulation to aid pathogen spread. Incidence of rayado fino is greater in P4285 than in Colorado in early vegetative stages of maize and impacted plant production in about 40%. Additionally, we evaluated the incidence of rayado fino in 18 commercial maize genotypes in a field plot experiment at 50 days after sowing in the early-sowing season of the 2022?23 crop year. These genotypes showed a differential incidence to the disease, which could be explored in breeding programs. Our results also support that the corn stunt complex pathosystem, with the rayado fino viral disease, is dynamic and unequal over the years. MenosCorn stunt complex disease has been a major problem to maize production in Brazil. Dalbulus maidis incidence can vary greatly over the years, as well as the occurrence of corn stunt diseases. Among the corn stunt pathogens, the maize rayado fino virus (MRFV) is involved in this disease complex. MRFV is persistently transmitted by the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) in a persistent propagative relationship. In this work, we assessed the abundance of D. maidis and rayado fino in experimental field plots with a commercial hybrid (P4285 VYHR) and an open pollinated variety (SCS156 Colorado) in the early phase of the planting in the late-sowing season, in two consecutive crop years (2020?21 and 2021?22), in Chapecó, Santa Catarina (South Brazil). Also, we evaluated the incidence of rayado fino and counted corn leafhoppers that were infesting MRFV-symptomatic and asymptomatic plants. D. maidis did not sort between the two maize genotypes in field conditions, but preferentially infests asymptomatic plants. This could be an evidence for the vector manipulation to aid pathogen spread. Incidence of rayado fino is greater in P4285 than in Colorado in early vegetative stages of maize and impacted plant production in about 40%. Additionally, we evaluated the incidence of rayado fino in 18 commercial maize genotypes in a field plot experiment at 50 days after sowing in the early-sowing season of the 2022?23 crop year. These genotypes showed a differential inciden... Mostrar Tudo |
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Thesagro: |
Corn stunt complex; Gompertz model; Logistic model; Maize production; nsect vector abundance; Resistance of maize genotypes. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02417naa a2200217 a 4500
001 1133607
005 2023-09-06
008 2023 bl uuuu u00u1 u #d
100 1 $aCANALE, M. C.
245 $aAbundance of Dalbulus maidis and impact of maize rayado fino disease on different genotypes in field conditions in Santa Catarina, Brazil.$h[electronic resource]
260 $c2023
520 $aCorn stunt complex disease has been a major problem to maize production in Brazil. Dalbulus maidis incidence can vary greatly over the years, as well as the occurrence of corn stunt diseases. Among the corn stunt pathogens, the maize rayado fino virus (MRFV) is involved in this disease complex. MRFV is persistently transmitted by the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) in a persistent propagative relationship. In this work, we assessed the abundance of D. maidis and rayado fino in experimental field plots with a commercial hybrid (P4285 VYHR) and an open pollinated variety (SCS156 Colorado) in the early phase of the planting in the late-sowing season, in two consecutive crop years (2020?21 and 2021?22), in Chapecó, Santa Catarina (South Brazil). Also, we evaluated the incidence of rayado fino and counted corn leafhoppers that were infesting MRFV-symptomatic and asymptomatic plants. D. maidis did not sort between the two maize genotypes in field conditions, but preferentially infests asymptomatic plants. This could be an evidence for the vector manipulation to aid pathogen spread. Incidence of rayado fino is greater in P4285 than in Colorado in early vegetative stages of maize and impacted plant production in about 40%. Additionally, we evaluated the incidence of rayado fino in 18 commercial maize genotypes in a field plot experiment at 50 days after sowing in the early-sowing season of the 2022?23 crop year. These genotypes showed a differential incidence to the disease, which could be explored in breeding programs. Our results also support that the corn stunt complex pathosystem, with the rayado fino viral disease, is dynamic and unequal over the years.
650 $aCorn stunt complex
650 $aGompertz model
650 $aLogistic model
650 $aMaize production
650 $ansect vector abundance
650 $aResistance of maize genotypes
700 1 $aNESI, C. N.
700 1 $aCASTILHOS, R. V.
773 $tTropical Plant Pathology, Viçosa, MG$gv. 48, 2023.
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