Evaluation of pyraclostrobin and acibenzolar-S-methyl on common bacterial blight of snap bean

Autores

  • Sandra Cristina Vigo Faculdade Arnaldo Horácio Pereira
  • Antonio Carlos Maringoni UNESP - FCA
  • Renata de Cássia Camara Faculdade de Ciências Agronômicas
  • Giuseppina Pace Pereira Lima Instituto de Biociências

DOI:

https://doi.org/10.5433/1679-0359.2012v33n1p167

Palavras-chave:

Phaseolus vulgaris, Xanthomonas axonopodis pv. Phaseoli, Protein.

Resumo

Assays were done under greenhouse conditions in order to evaluate the effect of pyraclostrobin (0.0375, 0.0750 and 0.150 mL.L-1) and acibenzolar-S-methyl (ASM) (0.025 g.L-1) in common bacterial blight, using leaves of snap beans cultivar Bragança. These chemicals were sprayed at three different times: five days before; five days before + five days after; and five days after leaf inoculation with an isolate of Xanthomonas axonopodis pv. phaseoli. They were determinate the levels of polyphenoloxidase, peroxidase and  total soluble proteins on inoculated and non-inoculated leaves of snap beans sprayed with pyraclostrobin (0.075 g.L-1) and ASM (0.025 g.L-1). All concentration of pyraclostrobin and ASM reduced the area under the disease progress curve (AUDPC) on leaves of snap beans, and the least AUDPC value was observed when this products were sprayed five days before + five days after inoculation. Higher levels of polyphenoloxidase, peroxidase and the total soluble proteins were observed on leaves sprayed with pyraclostrobin or ASM.

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Biografia do Autor

Sandra Cristina Vigo, Faculdade Arnaldo Horácio Pereira

Profª. da Faculdade Arnaldo Horácio Pereira, FAAHF, BA.

Antonio Carlos Maringoni, UNESP - FCA

FAZ/UNESP

Departamento de Produção Vegetal

Área de Fitopatologia

Renata de Cássia Camara, Faculdade de Ciências Agronômicas

Discente de pós-graduação da UNESP, Faculdade de Ciências Agronômicas, Deptº de Engenharia Rural, Botucatu, SP.

Giuseppina Pace Pereira Lima, Instituto de Biociências

Prof. da UNESP, Instituto de Biociências, Deptº de Química e Bioquímica, Botucatu, SP.

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Publicado

2012-04-05

Como Citar

Vigo, S. C., Maringoni, A. C., Camara, R. de C., & Lima, G. P. P. (2012). Evaluation of pyraclostrobin and acibenzolar-S-methyl on common bacterial blight of snap bean. Semina: Ciências Agrárias, 33(1), 167–174. https://doi.org/10.5433/1679-0359.2012v33n1p167

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