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Registro Completo |
Biblioteca(s): |
Embrapa Algodão; Embrapa Soja. |
Data corrente: |
10/01/2018 |
Data da última atualização: |
10/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
TERAMOTO, A.; MEYER, M. C.; SUASSUNA, N. D.; CUNHA, M. G. da. |
Afiliação: |
UFG; MAURICIO CONRADO MEYER, CNPSO; NELSON DIAS SUASSUNA, CNPA; UFG. |
Título: |
In vitro sensitivity of Corynespora cassiicola isolated from soybean to fungicides and field chemical control of target spot. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Summa Phytopathologica, Botucatu, v. 43, n. 4, p. 281-289, 2017. |
DOI: |
10.1590/0100-5405/2195 |
Idioma: |
Inglês |
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. |
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 |
Thesagro: |
Corynespora cassiicola; Fungicida; Fungo; Soja. |
Thesaurus Nal: |
Pesticide use reduction; Soybeans. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/170804/1/Teramoto.pdf
|
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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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
05/12/2018 |
Data da última atualização: |
05/12/2018 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
RIBEIRO, S. A. O.; SILVA, C. S.; FIALHO, L. L.; NOGUEIRA, A. R. de A.; NÓBREGA, J. de A.; GARCIA, E. E. |
Afiliação: |
Suellen A. O. Ribeiro, UEM; Caroline S. Silva, UFSCar; Lucimar L. Fialhob, UFSCar; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; Joaquim de A. Nóbrega, UFSCar; Edivaldo E. Garcia, UEM. |
Título: |
Estudo do fracionamento de elementos potencialmente tóxicos em infusões de erva-mate verde e tostada. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 19., 2018, Caldas Novas, GO; CONGRESSO IBEROAMERICANO DE QUÍMICA ANALÍTICA, 7., Caldas Novas, GO. Anais... Caldas Novas,GO: ENQA; CIAQA, 2018. |
Páginas: |
p.304. |
Idioma: |
Português |
Conteúdo: |
Nativa de regiões subtropicais da América do Sul, a erva-mate (Ilex paraguariensis St. Hil.) é produzida predominantemente no Brasil, sendo principalmente comercializada para o preparo de bebidas como o chimarrão e o chá mate, obtidas a partir das infusões de erva-mate verde e tostada, respectivamente. |
Palavras-Chave: |
Erva mate; Potencial tóxico. |
Thesagro: |
Chimarrão; Ilex Paraguariensis. |
Categoria do assunto: |
W Química e Física |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187787/1/EstudoFracionamentoElementos.pdf
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Marc: |
LEADER 01139nam a2200229 a 4500 001 2100763 005 2018-12-05 008 2018 bl uuuu u00u1 u #d 100 1 $aRIBEIRO, S. A. O. 245 $aEstudo do fracionamento de elementos potencialmente tóxicos em infusões de erva-mate verde e tostada.$h[electronic resource] 260 $aIn: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 19., 2018, Caldas Novas, GO; CONGRESSO IBEROAMERICANO DE QUÍMICA ANALÍTICA, 7., Caldas Novas, GO. Anais... Caldas Novas,GO: ENQA; CIAQA$c2018 300 $ap.304. 520 $aNativa de regiões subtropicais da América do Sul, a erva-mate (Ilex paraguariensis St. Hil.) é produzida predominantemente no Brasil, sendo principalmente comercializada para o preparo de bebidas como o chimarrão e o chá mate, obtidas a partir das infusões de erva-mate verde e tostada, respectivamente. 650 $aChimarrão 650 $aIlex Paraguariensis 653 $aErva mate 653 $aPotencial tóxico 700 1 $aSILVA, C. S. 700 1 $aFIALHO, L. L. 700 1 $aNOGUEIRA, A. R. de A. 700 1 $aNÓBREGA, J. de A. 700 1 $aGARCIA, E. E.
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Embrapa Pecuária Sudeste (CPPSE) |
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