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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão; Embrapa Soja. |
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Data corrente: |
10/01/2018 |
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Data da última atualização: |
10/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TERAMOTO, A.; MEYER, M. C.; SUASSUNA, N. D.; CUNHA, M. G. da. |
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Afiliação: |
UFG; MAURICIO CONRADO MEYER, CNPSO; NELSON DIAS SUASSUNA, CNPA; UFG. |
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Título: |
In vitro sensitivity of Corynespora cassiicola isolated from soybean to fungicides and field chemical control of target spot. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Summa Phytopathologica, Botucatu, v. 43, n. 4, p. 281-289, 2017. |
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DOI: |
10.1590/0100-5405/2195 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Sensibilidade de Corynespora cassiicola isolado de soja a fungicidas in vitro e controle
químico de mancha-alvo da soja no campo. |
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Conteúdo: |
Soybean target spot (Corynespora cassiicola) has become an important disease in most soybean growing regions in Brazil. The sensitivity of 34 isolates of C. cassiicola to 11 fungicides was evaluated based on mycelial growth inhibition (boscalid, carbendazim, cyproconazole, fluopyram, fluxapyroxad, prothioconazole and thiophanate-methyl) or spore germination inhibition (azoxystrobin, picoxystrobin, pyraclostrobin and trifloxystrobin). In addition, the efficacy of five fungicides to control target spot was tested in four field trials carried out during three crop seasons: 2011/2012, 2012/2013 and 2013/2014. Fungal isolates were collected from soybean plants in several soybean growing areas in Brazil. The effective concentration of each fungicide to inhibit fungal growth or spore germination by 50% (EC50) was calculated for all isolates. Fluxapyroxad and prothioconazole provided the greatest mycelial growth inhibition and pyraclostrobin led to the lowest spore germination percentage, with the lowest EC50 values. At field experiments, cyproconazole and carbendazim showed target spot control ranging from 26% to 29%. On the other hand, fluxapyroxad and prothioconazole prevented an epidemic of the disease by 45% to 55%, respectively. In general, the efficacy of fungicides in the field reflected the in vitro sensitivity averages. Large sensitivity reduction was detected to benzimidazoles (MBC), indicating that this group of fungicides should no longer be used for target spot control. There was a negative and significant correlation (-0.265) between target spot severity and soybean yield. The pathogen showed variability in sensitivity to the fungicide groups carboxamides (SDHI), triazoles (DMI) and strobilurins (QoI), which denotes a high risk of selection for resistance. MenosSoybean target spot (Corynespora cassiicola) has become an important disease in most soybean growing regions in Brazil. The sensitivity of 34 isolates of C. cassiicola to 11 fungicides was evaluated based on mycelial growth inhibition (boscalid, carbendazim, cyproconazole, fluopyram, fluxapyroxad, prothioconazole and thiophanate-methyl) or spore germination inhibition (azoxystrobin, picoxystrobin, pyraclostrobin and trifloxystrobin). In addition, the efficacy of five fungicides to control target spot was tested in four field trials carried out during three crop seasons: 2011/2012, 2012/2013 and 2013/2014. Fungal isolates were collected from soybean plants in several soybean growing areas in Brazil. The effective concentration of each fungicide to inhibit fungal growth or spore germination by 50% (EC50) was calculated for all isolates. Fluxapyroxad and prothioconazole provided the greatest mycelial growth inhibition and pyraclostrobin led to the lowest spore germination percentage, with the lowest EC50 values. At field experiments, cyproconazole and carbendazim showed target spot control ranging from 26% to 29%. On the other hand, fluxapyroxad and prothioconazole prevented an epidemic of the disease by 45% to 55%, respectively. In general, the efficacy of fungicides in the field reflected the in vitro sensitivity averages. Large sensitivity reduction was detected to benzimidazoles (MBC), indicating that this group of fungicides should no longer be used for target spot control... Mostrar Tudo |
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Thesagro: |
Corynespora cassiicola; Fungicida; Fungo; Soja. |
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Thesaurus Nal: |
Pesticide use reduction; Soybeans. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/170804/1/Teramoto.pdf
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Marc: |
LEADER 02708naa a2200253 a 4500
001 2084970
005 2018-01-10
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1590/0100-5405/2195$2DOI
100 1 $aTERAMOTO, A.
245 $aIn vitro sensitivity of Corynespora cassiicola isolated from soybean to fungicides and field chemical control of target spot.$h[electronic resource]
260 $c2017
500 $aTítulo em português: Sensibilidade de Corynespora cassiicola isolado de soja a fungicidas in vitro e controle químico de mancha-alvo da soja no campo.
520 $aSoybean target spot (Corynespora cassiicola) has become an important disease in most soybean growing regions in Brazil. The sensitivity of 34 isolates of C. cassiicola to 11 fungicides was evaluated based on mycelial growth inhibition (boscalid, carbendazim, cyproconazole, fluopyram, fluxapyroxad, prothioconazole and thiophanate-methyl) or spore germination inhibition (azoxystrobin, picoxystrobin, pyraclostrobin and trifloxystrobin). In addition, the efficacy of five fungicides to control target spot was tested in four field trials carried out during three crop seasons: 2011/2012, 2012/2013 and 2013/2014. Fungal isolates were collected from soybean plants in several soybean growing areas in Brazil. The effective concentration of each fungicide to inhibit fungal growth or spore germination by 50% (EC50) was calculated for all isolates. Fluxapyroxad and prothioconazole provided the greatest mycelial growth inhibition and pyraclostrobin led to the lowest spore germination percentage, with the lowest EC50 values. At field experiments, cyproconazole and carbendazim showed target spot control ranging from 26% to 29%. On the other hand, fluxapyroxad and prothioconazole prevented an epidemic of the disease by 45% to 55%, respectively. In general, the efficacy of fungicides in the field reflected the in vitro sensitivity averages. Large sensitivity reduction was detected to benzimidazoles (MBC), indicating that this group of fungicides should no longer be used for target spot control. There was a negative and significant correlation (-0.265) between target spot severity and soybean yield. The pathogen showed variability in sensitivity to the fungicide groups carboxamides (SDHI), triazoles (DMI) and strobilurins (QoI), which denotes a high risk of selection for resistance.
650 $aPesticide use reduction
650 $aSoybeans
650 $aCorynespora cassiicola
650 $aFungicida
650 $aFungo
650 $aSoja
700 1 $aMEYER, M. C.
700 1 $aSUASSUNA, N. D.
700 1 $aCUNHA, M. G. da
773 $tSumma Phytopathologica, Botucatu$gv. 43, n. 4, p. 281-289, 2017.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
14/08/2012 |
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Data da última atualização: |
15/08/2012 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CARVALHO, H. W. L. de; OLIVEIRA, I. R. de; CARVALHO, C. G. P.; FERREIRA, F. M. de; TABOSA, J. N.; LIRA, M. A.; MENEZES, V. M. M.; RODRIGUES, C. S.; CASTRO, C. R.; MENESES, M. C.; GOMES, M. C. M. |
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Afiliação: |
HELIO WILSON LEMOS DE CARVALHO, CPATC; IVENIO RUBENS DE OLIVEIRA, DTT; CLAUDIO GUILHERME PORTELA CARVALHO, CNPSO; FRANCISCO MERICLES DE BRITO FERREIRA, SECRETARIA DE AGRICULTURA DO ESTADO DE ALAGOAS; JOSE NILDO TABOSA, IPA; MARCELO ABDON LIRA, EPARN; VANESSA MARISA MIRANDA MENEZES; CINTHIA SOUZA RODRIGUES; CAMILA RODRIGUES CASTRO; MARCELLA CARVALHO MENESES; MAITTE CAROLINA MOURA GOMES. |
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Título: |
Comportamento de cultivares de girassol no Nordeste brasileiro: safra 2011. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 5.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 8., 2012, Salvador. Biodiesel, inovação e desenvolvimento regional: anais, trabalhos científicos. Lavras: UFLA, 2012. |
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Idioma: |
Português |
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Palavras-Chave: |
Cultivar. |
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Thesagro: |
Girassol; Safra. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/63732/1/Girassol0002.pdf
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Marc: |
LEADER 00946nam a2200253 a 4500
001 1931229
005 2012-08-15
008 2012 bl uuuu u00u1 u #d
100 1 $aCARVALHO, H. W. L. de
245 $aComportamento de cultivares de girassol no Nordeste brasileiro$bsafra 2011.$h[electronic resource]
260 $aIn: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 5.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 8., 2012, Salvador. Biodiesel, inovação e desenvolvimento regional: anais, trabalhos científicos. Lavras: UFLA$c2012
650 $aGirassol
650 $aSafra
653 $aCultivar
700 1 $aOLIVEIRA, I. R. de
700 1 $aCARVALHO, C. G. P.
700 1 $aFERREIRA, F. M. de
700 1 $aTABOSA, J. N.
700 1 $aLIRA, M. A.
700 1 $aMENEZES, V. M. M.
700 1 $aRODRIGUES, C. S.
700 1 $aCASTRO, C. R.
700 1 $aMENESES, M. C.
700 1 $aGOMES, M. C. M.
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Embrapa Tabuleiros Costeiros (CPATC) |
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