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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
29/12/2020 |
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Data da última atualização: |
12/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GUIMARÃES, R. A.; ZANOTTO, E.; PERRONY, P. E. P.; ZANOTTO, L. A. S.; SILVA, L. J. da; MACHADO, J. da C.; PINTO, F. A. M. F.; MEDEIROS, H. N.; Von PINHO, R. G.; MELO, I. S. de; SILVA, J. C. P. da; MEDEIROS, F. C. L. de; MEDEIROS, F. H. V. de. |
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Afiliação: |
RAFAELA ARAÚJO GUIMARÃES, UFLA; EDGAR ZANOTTO, Vitia Group; PAUL ESTEBAN PHEREZ PERRONY, UFLA; LIDIA ALMEIDA SALUM ZANOTTO, Vitia Group; LEONARDO JOSÉ DA SILVA; JOSÉ DA CRUZ MACHADO, UFLA; FELIPE AUGUSTO MORETTI FERREIRA, EPAGRI; HENRIQUE NOVAES MEDEIROS, UFLA; RENZO GARCIA VON PINHO, UFLA; ITAMAR SOARES DE MELO, CNPMA; JÚLIO CARLOS PEREIRA DA SILVA, UFSM; FERNANDA CARVALHO LOPES DE MEDEIROS, UFLA; FLÁVIO HENRIQUE VASCONCELOS DE MEDEIROS, UFLA. |
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Título: |
Integrating a chemical fungicide and Bacillus subtilis BIOUFLA2 ensures leaf protection and reduces ear rot (Fusarium verticillioides) and fumonisin content in maize. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Phytopathology, v. 169, n. 3, p. 139-148, 2020. |
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ISSN: |
0931-1785 |
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DOI: |
https://doi.org/10.1111/jph.12968 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Fungicides in maize production under tropical conditions reduce losses from foliar diseases, but only a few reduce ear rot incidence or mycotoxin contamination in kernels. Biocontrol agents (BCAs) may reduce postharvest losses but their efficacy has not been demonstrated in field conditions. Here, we evaluated the use of bacterial isolates in tandem with fungicides on Fusarium verticillioides incidence and fumonisin content. After an early screening, Bacillus subtilis and Streptomyces araujoniae isolates were used in field trials. Maize plants were sprayed twice: at the end of the vegetative stage (V9) and at the beginning of the reproductive stage (R1). Sprays were made by applying water, B. subtilis strain BIOUFLA2, S. araujoniae strain ASBV-1T, or fungicide (cyproconazole + azoxystrobin) in different combinations, totalling nine treatments. Ten days later, all maize ears were inoculated with F. verticillioides. Plants were assessed for foliar diseases, grain yield, F. verticillioides incidence and fumonisin content in kernels. The treatment with two fungicide sprays reduced most of the foliar diseases but not F. verticillioides incidence in kernels. Twice-sprayed B. subtilis and S. araujoniae reduced F. verticillioides, but did not protect leaves against other pathogens. All treatments encompassing a fungicide followed by one of the BCAs reduced F. verticillioides incidence compared to control. Twice-sprayed fungicide increased fumonisin by 50% compared to water control, while fungicide followed by B. subtilis decreased the fumonisin content by 40%. Replacing the second chemical spray with S. araujoniae did not reduce the fumonisin content but provided a higher yield than a twice-sprayed fungicide. Exclusive use of chemical fungicides may not ensure higher grain quality and yield, but the integration with B. subtilis BIOUFLA2 can accomplish both. MenosAbstract: Fungicides in maize production under tropical conditions reduce losses from foliar diseases, but only a few reduce ear rot incidence or mycotoxin contamination in kernels. Biocontrol agents (BCAs) may reduce postharvest losses but their efficacy has not been demonstrated in field conditions. Here, we evaluated the use of bacterial isolates in tandem with fungicides on Fusarium verticillioides incidence and fumonisin content. After an early screening, Bacillus subtilis and Streptomyces araujoniae isolates were used in field trials. Maize plants were sprayed twice: at the end of the vegetative stage (V9) and at the beginning of the reproductive stage (R1). Sprays were made by applying water, B. subtilis strain BIOUFLA2, S. araujoniae strain ASBV-1T, or fungicide (cyproconazole + azoxystrobin) in different combinations, totalling nine treatments. Ten days later, all maize ears were inoculated with F. verticillioides. Plants were assessed for foliar diseases, grain yield, F. verticillioides incidence and fumonisin content in kernels. The treatment with two fungicide sprays reduced most of the foliar diseases but not F. verticillioides incidence in kernels. Twice-sprayed B. subtilis and S. araujoniae reduced F. verticillioides, but did not protect leaves against other pathogens. All treatments encompassing a fungicide followed by one of the BCAs reduced F. verticillioides incidence compared to control. Twice-sprayed fungicide increased fumonisin by 50% compared to water... Mostrar Tudo |
|
Palavras-Chave: |
Integrated disease management. |
|
Thesagro: |
Controle Biológico; Controle Integrado; Micotoxina; Milho; Podridão de Fusarium. |
|
Thesaurus NAL: |
Bacillus subtilis; Biological control agents; Corn; Foliar diseases; Mycotoxins. |
|
Categoria do assunto: |
H Saúde e Patologia |
|
Marc: |
LEADER 03211naa a2200421 a 4500
001 2128793
005 2021-04-12
008 2020 bl uuuu u00u1 u #d
022 $a0931-1785
024 7 $ahttps://doi.org/10.1111/jph.12968$2DOI
100 1 $aGUIMARÃES, R. A.
245 $aIntegrating a chemical fungicide and Bacillus subtilis BIOUFLA2 ensures leaf protection and reduces ear rot (Fusarium verticillioides) and fumonisin content in maize.$h[electronic resource]
260 $c2020
520 $aAbstract: Fungicides in maize production under tropical conditions reduce losses from foliar diseases, but only a few reduce ear rot incidence or mycotoxin contamination in kernels. Biocontrol agents (BCAs) may reduce postharvest losses but their efficacy has not been demonstrated in field conditions. Here, we evaluated the use of bacterial isolates in tandem with fungicides on Fusarium verticillioides incidence and fumonisin content. After an early screening, Bacillus subtilis and Streptomyces araujoniae isolates were used in field trials. Maize plants were sprayed twice: at the end of the vegetative stage (V9) and at the beginning of the reproductive stage (R1). Sprays were made by applying water, B. subtilis strain BIOUFLA2, S. araujoniae strain ASBV-1T, or fungicide (cyproconazole + azoxystrobin) in different combinations, totalling nine treatments. Ten days later, all maize ears were inoculated with F. verticillioides. Plants were assessed for foliar diseases, grain yield, F. verticillioides incidence and fumonisin content in kernels. The treatment with two fungicide sprays reduced most of the foliar diseases but not F. verticillioides incidence in kernels. Twice-sprayed B. subtilis and S. araujoniae reduced F. verticillioides, but did not protect leaves against other pathogens. All treatments encompassing a fungicide followed by one of the BCAs reduced F. verticillioides incidence compared to control. Twice-sprayed fungicide increased fumonisin by 50% compared to water control, while fungicide followed by B. subtilis decreased the fumonisin content by 40%. Replacing the second chemical spray with S. araujoniae did not reduce the fumonisin content but provided a higher yield than a twice-sprayed fungicide. Exclusive use of chemical fungicides may not ensure higher grain quality and yield, but the integration with B. subtilis BIOUFLA2 can accomplish both.
650 $aBacillus subtilis
650 $aBiological control agents
650 $aCorn
650 $aFoliar diseases
650 $aMycotoxins
650 $aControle Biológico
650 $aControle Integrado
650 $aMicotoxina
650 $aMilho
650 $aPodridão de Fusarium
653 $aIntegrated disease management
700 1 $aZANOTTO, E.
700 1 $aPERRONY, P. E. P.
700 1 $aZANOTTO, L. A. S.
700 1 $aSILVA, L. J. da
700 1 $aMACHADO, J. da C.
700 1 $aPINTO, F. A. M. F.
700 1 $aMEDEIROS, H. N.
700 1 $aVon PINHO, R. G.
700 1 $aMELO, I. S. de
700 1 $aSILVA, J. C. P. da
700 1 $aMEDEIROS, F. C. L. de
700 1 $aMEDEIROS, F. H. V. de
773 $tJournal of Phytopathology$gv. 169, n. 3, p. 139-148, 2020.
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