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Comparative Severity Analysis of Asian Soybean Rust in Soybean Farms Sown in December and February in Mato Grosso, 2018/19 Growing Season

Author

Listed:
  • Erlei Melo Reis
  • Rodrigo Marcelo Pasquali
  • Luana Maria de Rossi Belufi
  • Wanderlei Dias Guerra
  • Mateus Zanatta

Abstract

The objective of this work was to compare the leaflet severity of Asian soybean rust in farms sown in December and February in the state of Mato Grosso. In the survey, 28 fields were sampled in 14 counties in the North, West and South regions of the state. A total of 40 leaflets were collected per plot, in randomized treatments with four replication and three crop phenological stages. Leaflet severity was assessed according to a diagrammatic scale. The data were expressed as leaflet severity, submitted to linear regression analysis, calculated the area under the disease progress curve (AUDPC) considering the three phenological stages sampled, and the means compared by the Tukey’s test. Leaflet severity was significantly higher in the fields sown in December than in February, as well the number of fungicides sprayings. Our results indicate that the proposed change in seeding time from December to February can be implemented by significantly reducing risks and in compliance with the principles of IN 002/2015.

Suggested Citation

  • Erlei Melo Reis & Rodrigo Marcelo Pasquali & Luana Maria de Rossi Belufi & Wanderlei Dias Guerra & Mateus Zanatta, 2024. "Comparative Severity Analysis of Asian Soybean Rust in Soybean Farms Sown in December and February in Mato Grosso, 2018/19 Growing Season," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 12(9), pages 130-130, April.
    • Handle: RePEc:ibn:jasjnl:v:12:y:2024:i:9:p:130
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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