Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides
Phytophthora infestans is the causative agent of one of the most limiting diseases in potato crops (Solanum tuberosum) in the Department of Nariño, causing farmers to intensively use different fungicides, which reach 30% of production costs and are a serious environmental and public health problem....
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| Format: | Online |
| Language: | spa |
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Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
2018
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7859 |
| _version_ | 1801706281461874688 |
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| author | Chañag, Harold Andrés Álvarez, Sandra Lorena Lagos, Luz Estela Burbano-David, Diana Marcela |
| author_facet | Chañag, Harold Andrés Álvarez, Sandra Lorena Lagos, Luz Estela Burbano-David, Diana Marcela |
| author_sort | Chañag, Harold Andrés |
| collection | OJS |
| description | Phytophthora infestans is the causative agent of one of the most limiting diseases in potato crops (Solanum tuberosum) in the Department of Nariño, causing farmers to intensively use different fungicides, which reach 30% of production costs and are a serious environmental and public health problem. The purpose of this research was to support integrated disease management programs based on the generation of a baseline sensitivity of 20 P. infestans isolates from the Department of Nariño to three commercial fungicides composed of Metalaxyl 8% + Mancozeb 64% , Cimoxanil 6% + Propineb 70% and Fluopicolide 6% + Propineb 66.7%. This study was carried out using the in vitro methodology and five doses on an exponential scale. The results showed a heterogeneous behavior where some isolates showed resistance to the fungicide composed of Metalaxil + Mancozeb, reaching average EC50 values of 6.67 μg mL-1; while for the fungicides composed of Cimoxanil + Propineb and Fluopicolide + Propineb, there were intermediate and sensitive sensitivity levels with average EC50 values of 1.57 μg mL-1 and 2.61 μg mL-1. On the other hand, the sporulation rate was reduced in its entirety with the three fungicides for the evaluated doses of 100; 1,000; 10,000 μg mL-1. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-7859 |
| institution | Revista Colombiana de Ciencias Hortícolas |
| language | spa |
| publishDate | 2018 |
| publisher | Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-78592020-08-03T23:56:23Z Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides Sensibilidad de aislamientos de Phytophthora infestans procedentes de Solanum tuberosum a tres fungicidas sistémicos Chañag, Harold Andrés Álvarez, Sandra Lorena Lagos, Luz Estela Burbano-David, Diana Marcela Resistance to fungicides Peronosporal Cymoxanil Fluopicolide Metalaxil Potato Crop protection Fungicides Resistencia a los fungicidas Peronosporales Cimoxanil Fluopicolide Metalaxil Papa Protección de cultivos Fungicidas Phytophthora infestans is the causative agent of one of the most limiting diseases in potato crops (Solanum tuberosum) in the Department of Nariño, causing farmers to intensively use different fungicides, which reach 30% of production costs and are a serious environmental and public health problem. The purpose of this research was to support integrated disease management programs based on the generation of a baseline sensitivity of 20 P. infestans isolates from the Department of Nariño to three commercial fungicides composed of Metalaxyl 8% + Mancozeb 64% , Cimoxanil 6% + Propineb 70% and Fluopicolide 6% + Propineb 66.7%. This study was carried out using the in vitro methodology and five doses on an exponential scale. The results showed a heterogeneous behavior where some isolates showed resistance to the fungicide composed of Metalaxil + Mancozeb, reaching average EC50 values of 6.67 μg mL-1; while for the fungicides composed of Cimoxanil + Propineb and Fluopicolide + Propineb, there were intermediate and sensitive sensitivity levels with average EC50 values of 1.57 μg mL-1 and 2.61 μg mL-1. On the other hand, the sporulation rate was reduced in its entirety with the three fungicides for the evaluated doses of 100; 1,000; 10,000 μg mL-1. Phytophthora infestans, es el agente causal de una de las enfermedades más limitantes de cultivos de papa (Solanum tuberosum) en el departamento de Nariño causando que los agricultores utilicen de forma intensiva diferentes fungicidas, llegando a representar el 30% de los costos de producción, siendo un grave problema ambiental y de salud pública. El propósito de esta investigación es apoyar los programas de manejo integrado de enfermedades a partir de la generación de una línea base de sensibilidad de 20 aislamientos de P. infestans del departamento de Nariño frente a tres fungicidas sistémicos comerciales compuestos por Metalaxil 8% + Mancozeb 64%, Cimoxanil 6% + Propineb 70% y Fluopicolide 6% + Propineb 66,7%. Este estudio se llevó a cabo siguiendo la metodología in vitro utilizando cinco dosis basadas en una escala exponencial. Los resultados mostraron un comportamiento heterogéneo donde algunos aislamientos presentaron resistencia al fungicida compuesto por Metalaxil + Mancozeb, alcanzando valores promedio de EC50 de 6,67 µg mL-1, mientras que para los fungicidas compuestos por Cimoxanil + Propineb y Fluopicolide + Propineb se presentaron niveles de sensibilidad intermedia y sensibles con valores de EC50 promedio de 1,57 µg mL-1 y 2,61 µg mL-1. Por otra parte, la tasa de esporulación se redujo en su totalidad para los tres fungicidas cuando se evaluaron las dosis de 100, 1.000, 10.000 µg mL-1. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto Texte Testo Text application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7859 10.17584/rcch.2018v12i3.7859 Revista Colombiana de Ciencias Hortícolas; Vol. 12 No. 3 (2018); 592-601 Revista Colombiana de Ciencias Hortícolas; Vol. 12 Núm. 3 (2018); 592-601 Revista Colombiana de Ciencias Hortícolas; Vol. 12 No 3 (2018); 592-601 Revista Colombiana de Ciencias Hortícolas; V. 12 N. 3 (2018); 592-601 Revista Colombiana de Ciencias Hortícolas; v. 12 n. 3 (2018); 592-601 2422-3719 2011-2173 spa https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7859/8549 Colombia; Nariño Colombia; Nariño Colombia; Nariño Colombia; Nariño Colombia; Nariño Copyright (c) 2018 Revista Colombiana de Ciencias Hortícolas |
| spellingShingle | Resistance to fungicides Peronosporal Cymoxanil Fluopicolide Metalaxil Potato Crop protection Fungicides Resistencia a los fungicidas Peronosporales Cimoxanil Fluopicolide Metalaxil Papa Protección de cultivos Fungicidas Chañag, Harold Andrés Álvarez, Sandra Lorena Lagos, Luz Estela Burbano-David, Diana Marcela Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides |
| title | Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides |
| title_alt | Sensibilidad de aislamientos de Phytophthora infestans procedentes de Solanum tuberosum a tres fungicidas sistémicos |
| title_full | Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides |
| title_fullStr | Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides |
| title_full_unstemmed | Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides |
| title_short | Solanum tuberosum isolate sensitivity to Phytophthora infestans when using three systemic fungicides |
| title_sort | solanum tuberosum isolate sensitivity to phytophthora infestans when using three systemic fungicides |
| topic | Resistance to fungicides Peronosporal Cymoxanil Fluopicolide Metalaxil Potato Crop protection Fungicides Resistencia a los fungicidas Peronosporales Cimoxanil Fluopicolide Metalaxil Papa Protección de cultivos Fungicidas |
| topic_facet | Resistance to fungicides Peronosporal Cymoxanil Fluopicolide Metalaxil Potato Crop protection Fungicides Resistencia a los fungicidas Peronosporales Cimoxanil Fluopicolide Metalaxil Papa Protección de cultivos Fungicidas |
| url | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7859 |
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