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Registro Completo |
Biblioteca(s): |
Epagri-Sede. |
Data corrente: |
05/08/2016 |
Data da última atualização: |
05/08/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
RIOS, J. A.; RIOS, V. S.; PAUL, P. A.; SOUZA, M. A.; ARAUJO, L.; RODRIGUES, F. A. |
Título: |
Fungicide and cultivar effects on the development and temporal progress of wheat blast under field conditions. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Crop Protection, Amsterdã, v. 89, n. 1, p. 152-160, 2016. |
Idioma: |
Inglês |
Conteúdo: |
The epidemiology of wheat blast, caused by the Triticum pathotype of Pyricularia oryzae, is poorly understood,
making it very difficult to manage. We reported on the individual and combined effect of host
resistance and fungicide application for managing wheat blast disease on spikes. Two field experiments
(Exp. 1 and Exp. 2) were conducted in a region of Brazil where blast is not known to be endemic to
evaluate its development as influenced by fungicide and host resistance. Plots of wheat cultivars BR-18
(partially resistant) and Guamirim (susceptible) were either treated with the fungicide
epoxiconazole þ pyraclostrobin or left non-treated, and then inoculated with a spore suspension of
P. oryzae at mid-anthesis. Spike blast incidence and severity, quantified at regular intervals after inoculation,
increased over time, and fungicide and cultivar had statistically significant effects (P < 0.005) on
both measures of disease and their temporal rates of progress. Relative to Guamirim-non-treated, BR-18-
non-treated (resistance alone) led to 44 and 64% control of final incidence and severity, respectively, in
Exp. 1, and 3 and 49% control, respectively, in Exp. 2. Guamirim-treated (fungicide alone) led to 65%
control of incidence and 77% control of severity in Exp. 1, and 64% control of incidence and 95% control of
severity in Exp. 2. For both incidence and severity, fungicide and resistance alone also reduced the
temporal rate of progress relative to the susceptible non-treated. However, the greatest overall efficacy
was observed when resistance and fungicide were combined, with over 70 and 90% control of final
incidence and severity, respectively, and over 75% reduction in the temporal rate of spike blast progress.
Based on percent control, the integrated effect of resistance and fungicide was additive for incidence,
severity, and their temporal rates of progress, demonstrating the value of combining the two strategies to
manage spike blast. MenosThe epidemiology of wheat blast, caused by the Triticum pathotype of Pyricularia oryzae, is poorly understood,
making it very difficult to manage. We reported on the individual and combined effect of host
resistance and fungicide application for managing wheat blast disease on spikes. Two field experiments
(Exp. 1 and Exp. 2) were conducted in a region of Brazil where blast is not known to be endemic to
evaluate its development as influenced by fungicide and host resistance. Plots of wheat cultivars BR-18
(partially resistant) and Guamirim (susceptible) were either treated with the fungicide
epoxiconazole þ pyraclostrobin or left non-treated, and then inoculated with a spore suspension of
P. oryzae at mid-anthesis. Spike blast incidence and severity, quantified at regular intervals after inoculation,
increased over time, and fungicide and cultivar had statistically significant effects (P < 0.005) on
both measures of disease and their temporal rates of progress. Relative to Guamirim-non-treated, BR-18-
non-treated (resistance alone) led to 44 and 64% control of final incidence and severity, respectively, in
Exp. 1, and 3 and 49% control, respectively, in Exp. 2. Guamirim-treated (fungicide alone) led to 65%
control of incidence and 77% control of severity in Exp. 1, and 64% control of incidence and 95% control of
severity in Exp. 2. For both incidence and severity, fungicide and resistance alone also reduced the
temporal rate of progress relative to the susceptible non-treate... Mostrar Tudo |
Palavras-Chave: |
Blast; control; Fungicide; Host resistance; progress Disease; Spike blast. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02700naa a2200253 a 4500 001 1125247 005 2016-08-05 008 2016 bl uuuu u00u1 u #d 100 1 $aRIOS, J. A. 245 $aFungicide and cultivar effects on the development and temporal progress of wheat blast under field conditions.$h[electronic resource] 260 $c2016 520 $aThe epidemiology of wheat blast, caused by the Triticum pathotype of Pyricularia oryzae, is poorly understood, making it very difficult to manage. We reported on the individual and combined effect of host resistance and fungicide application for managing wheat blast disease on spikes. Two field experiments (Exp. 1 and Exp. 2) were conducted in a region of Brazil where blast is not known to be endemic to evaluate its development as influenced by fungicide and host resistance. Plots of wheat cultivars BR-18 (partially resistant) and Guamirim (susceptible) were either treated with the fungicide epoxiconazole þ pyraclostrobin or left non-treated, and then inoculated with a spore suspension of P. oryzae at mid-anthesis. Spike blast incidence and severity, quantified at regular intervals after inoculation, increased over time, and fungicide and cultivar had statistically significant effects (P < 0.005) on both measures of disease and their temporal rates of progress. Relative to Guamirim-non-treated, BR-18- non-treated (resistance alone) led to 44 and 64% control of final incidence and severity, respectively, in Exp. 1, and 3 and 49% control, respectively, in Exp. 2. Guamirim-treated (fungicide alone) led to 65% control of incidence and 77% control of severity in Exp. 1, and 64% control of incidence and 95% control of severity in Exp. 2. For both incidence and severity, fungicide and resistance alone also reduced the temporal rate of progress relative to the susceptible non-treated. However, the greatest overall efficacy was observed when resistance and fungicide were combined, with over 70 and 90% control of final incidence and severity, respectively, and over 75% reduction in the temporal rate of spike blast progress. Based on percent control, the integrated effect of resistance and fungicide was additive for incidence, severity, and their temporal rates of progress, demonstrating the value of combining the two strategies to manage spike blast. 653 $aBlast 653 $acontrol 653 $aFungicide 653 $aHost resistance 653 $aprogress Disease 653 $aSpike blast 700 1 $aRIOS, V. S. 700 1 $aPAUL, P. A. 700 1 $aSOUZA, M. A. 700 1 $aARAUJO, L. 700 1 $aRODRIGUES, F. A. 773 $tCrop Protection, Amsterdã$gv. 89, n. 1, p. 152-160, 2016.
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Registros recuperados : 6 | |
1. | | ARAUJO, L.; BISPO, W. M. S.; RIOS, J. A.; FERNANDES, S. A.; RODRIGUES, F. Á. Alkaloids and phenolics biosynthesis increases mango resistance to infection by Ceratocystis fimbriata. Bragantia, Campinas SP, v. 75, n. 2, p. 199-211, 2016.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
Biblioteca(s): Epagri-Sede. |
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3. | | RIOS, J. A.; RIOS, V. S.; PAUL, P. A.; SOUZA, M. A.; ARAUJO, L.; RODRIGUES, F. A. Fungicide and cultivar effects on the development and temporal progress of wheat blast under field conditions. Crop Protection, Amsterdã, v. 89, n. 1, p. 152-160, 2016.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
Biblioteca(s): Epagri-Sede. |
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4. | | RIOS, J. A.; RODRIGUES, F. A.; RIOS, V. S.; PAUL, P. A.; SOUZA, M. A.; ARAUJO, L. The integration of fungicide application and host resistance on blast progress on wheat under field conditions. In: 2015 APS ANNUAL MEETING, ., 2015, Pasadena, California, U.S.A. Annals... Pasadena, California: 2015 APS Annual Meeting, 2015.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Epagri-Sede. |
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5. | | CACIQUE, I. S.; BISPO, W. M. S.; ARAUJO, L.; AUCIQUE-PEREZ, C. E.; RIOS, J. A.; SILVA, L. C.; RODRIGUES, F. A. Potassium-modulated photosynthetic performance of mango plants infected by Ceratocystis fimbriata. In: 2015 APS ANNUAL MEETING, ., 2015, Pasadena, California, U.S.A. Annals... Pasadena, California: APS Annual Meeting, 2015.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Epagri-Sede. |
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6. | | CACIQUE, I. S.; BISPO, W. M. S.; ARAUJO, L.; AUCIQUE-PÉREZ, C. E.; RIOS, J. A.; SILVA, L. C.; RODRIGUES, F. Á. Potassium-modulated physiological performance of mango plants infected by Ceratocystis fimbriata. Bragantia, Campinas, SP, v. 76, n. 4, p. 521-535, 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
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Registros recuperados : 6 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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