<b>Drip fungigation in early blight control of tomato</b> - doi: 10.4025/actasciagron.v33i1.9515

  • João Batista Tolentino Júnior Escola Superior de Agricultura Luiz de Queiroz
  • Roberto Rezende Universidade Estadual de Maringá
  • Adriana Terumi Itako Universidade Estadual de Maringá
  • Paulo Sérgio Lourenço de Freitas Universidade Estadual de Maringá
  • José Antônio Frizzone Escola Superior de Agricultura Luiz de Queiroz
Palavras-chave: Chemigation, Solanum lycropersicum, Alternaria solani

Resumo

The aim was to verify if the fungigation via drip irrigation is an alternative to the conventional method of spraying on tomato for controlling early blight. Tomato plants (variety Santa Clara) were grown in pots inside a greenhouse. Fifty days after transplanting, the plants were inoculated with Alternaria solani and treated with four different fungicides: azoxystrobin (8 g 100 L-1), difeconazole (50 mL 100 L-1), metiram+piraclostrobin (200 g 100 L-1) and tebuconazole (100 mL 100 L-1) using two applications methods: conventional spraying and fungigation dripping. The control plants did not receive fungicide application. To assess the severity of the disease, we used a rating scale expressed as the area under the disease progress curve (AUDPC) and production factors, such as number, weight and average diameter of the fruit and its productivity. The experimental design was completely randomized in factorial scheme 4 x 2 + 1 with eight replicates. Each plot had one plant in one pot. A 27% reduction in disease severity was observed when compared with the control plants, with no significant difference noted regarding the application method. The number of fruits did not statistically differ between the treatments. The average weight and diameter of the fruits were superior in the plants that had fungicide application compared to the control plant, reflecting an increase in productivity. Fungigation through water dripping is an alternative to the conventional method of spraying cultured tomatoes.

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Biografia do Autor

João Batista Tolentino Júnior, Escola Superior de Agricultura Luiz de Queiroz
Programa de Pós-graduação em Irrigação e Drenagem, Departamento de Engenharia de Biossistemas
Roberto Rezende, Universidade Estadual de Maringá
Departamento de Agronomia
Adriana Terumi Itako, Universidade Estadual de Maringá
Departamento de Agronomia
Paulo Sérgio Lourenço de Freitas, Universidade Estadual de Maringá
Departamento de Agronomia
José Antônio Frizzone, Escola Superior de Agricultura Luiz de Queiroz
Departamento de Engenharia de Biossistemas
Publicado
2011-02-16
Como Citar
Tolentino Júnior, J. B., Rezende, R., Itako, A. T., Freitas, P. S. L. de, & Frizzone, J. A. (2011). <b>Drip fungigation in early blight control of tomato</b&gt; - doi: 10.4025/actasciagron.v33i1.9515. Acta Scientiarum. Agronomy, 33(1), 9-14. https://doi.org/10.4025/actasciagron.v33i1.9515
Seção
Engenharia Rural

 

2.0
2019CiteScore
 
 
60th percentile
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2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus