Spray solution deposition and Asian rust control in soybean cultivars
| Autor: | Antonio L. Viegas Neto, Cristiano M. A. de Souza, Izidro dos S. de Lima Júnior, Lígia M. M. da S. Piletti, Karina de J. E. Martins, Bruno F. Bertoncello |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Canopy
Environmental Engineering Phakopsora pachyrhizi biology Glycine max Agriculture (General) Limiting application technology biology.organism_classification Rust fungicides S1-972 Fungicide droplet density Agronomy Environmental science Cultivar Agronomy and Crop Science Deposition (chemistry) Droplet size |
| Zdroj: | Revista Brasileira de Engenharia Agrícola e Ambiental v.25 n.12 2021 Revista Brasileira de Engenharia Agrícola e Ambiental Universidade Federal de Campina Grande (UFCG) instacron:UFCG Revista Brasileira de Engenharia Agrícola e Ambiental-Agriambi, Vol 25, Iss 12, Pp 862-867 (2021) |
| Popis: | The control of Asian soybean rust depends on fungicide efficacy and the application technology; however, the leaf architecture of soybean cultivars may also interfere in disease control. This study aimed to evaluate Asian rust control and fungicide deposition using spray nozzles in three soybean cultivars. A randomized block design was used, with treatments arranged in a split-plot scheme; the plots were three soybean cultivars (SYN 1561 IPRO, M6410 IPRO, and M6210 IPRO) and the subplots three spray nozzles (11002 BD, AIXR 110015 and TTJ60 11002), in addition to a control with no fungicide application, and four replicates. The volume median diameter, droplet coverage, leaf area index, area under the disease progress curve, 1,000-grain weight and crop yield were evaluated. The 11002BD and AIXR11005 nozzles provided better spray deposition in cultivars with lower leaf area indexes at the R1 phenological stage. Nozzles 11002BD, AIXR110015 and TTJ60 ensured better management of Asian rust than that of the control treatment, regardless of leaf area index. Cultivar SYN1561 obtained the largest grain yield and highest leaf area index in the season with the highest rainfall, regardless of the spray nozzle used. |
| Databáze: | OpenAIRE |
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