Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp.

Two trials were carried out in order to obtain chemical control of the disease Calied "Mortaja blanca" in potato caused by the fungus Rosellinia sp. The first trial was held in PotosI (Nariño), a split plot design was used with the fungicides metiltiofanato 5 kg/ha; carbendazim 5 L/ha; car...

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Autor principal: Guerrero G., Omar
Formato: article
Lenguaje:Español
Publicado: Instituto Colombiano Agropecuario - ICA 2019
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12324/35377
id RepoAGROSAVIA35377
record_format dspace
institution Corporación Colombiana de Investigación Agropecuaria
collection Repositorio AGROSAVIA
language Español
topic Ciencia del suelo y manejo del suelo - P30
Solanum tuberosum
Rosellinia
Fungicidas cuprosos
Experimentación en campo
Raíces y tubérculos
spellingShingle Ciencia del suelo y manejo del suelo - P30
Solanum tuberosum
Rosellinia
Fungicidas cuprosos
Experimentación en campo
Raíces y tubérculos
Guerrero G., Omar
Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp.
description Two trials were carried out in order to obtain chemical control of the disease Calied "Mortaja blanca" in potato caused by the fungus Rosellinia sp. The first trial was held in PotosI (Nariño), a split plot design was used with the fungicides metiltiofanato 5 kg/ha; carbendazim 5 L/ha; carboxin + captan 2 kg/ha; thiabendazole 2 L/ha and benomyl 1 kg/ha sprayed on three combinations, at planting and ridging; plants emergence, ridging and at planting, plant emergence and ridging. The second trial was carried out PotosI (Nariño) with a randomized blocks desing, using the fungicide metiltiofanato and carbendazim in dossages of 3, 4, 5 kg/ha divided by three spray epoques, at planting, plant emergence and ridging. In the two trials were evaluated plants wilt and yield of healthy and damage tubers. The results of the first trial showed that metiltiofanato and carbendazim sprayed at planting time, plant emergence and ridging time can control the disease in 96% and 95% respectively. According to economic analysis, the best treatment was metiltiofanato. The obtained results from the second trial showed that the fungicides metiltiofanato and carbendazim with the three evaluated dossages gave and excellent protection against the disease with control percentajes between 93.2% and 95.5% without any significative difference among them with high significative differences with the check. The economic analysis showed that metiltiofanato was the best treatment using 1.5 kg/ha sprayed on the planting, emergence and ridging time respectively followed of carbendazim 1.5 L/ha sprayed in the same was before mentioned.
format article
author Guerrero G., Omar
author_facet Guerrero G., Omar
author_sort Guerrero G., Omar
title Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp.
title_short Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp.
title_full Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp.
title_fullStr Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp.
title_full_unstemmed Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp.
title_sort control químico de la mortaja blanca de la papa causada por el hongo rosellinia sp.
publisher Instituto Colombiano Agropecuario - ICA
publishDate 2019
url http://hdl.handle.net/20.500.12324/35377
work_keys_str_mv AT guerrerogomar controlquimicodelamortajablancadelapapacausadaporelhongoroselliniasp
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spelling RepoAGROSAVIA353772023-11-10T17:18:20Z Control químico de la mortaja blanca de la papa causada por el hongo Rosellinia sp. Guerrero G., Omar Ciencia del suelo y manejo del suelo - P30 Solanum tuberosum Rosellinia Fungicidas cuprosos Experimentación en campo Raíces y tubérculos Two trials were carried out in order to obtain chemical control of the disease Calied "Mortaja blanca" in potato caused by the fungus Rosellinia sp. The first trial was held in PotosI (Nariño), a split plot design was used with the fungicides metiltiofanato 5 kg/ha; carbendazim 5 L/ha; carboxin + captan 2 kg/ha; thiabendazole 2 L/ha and benomyl 1 kg/ha sprayed on three combinations, at planting and ridging; plants emergence, ridging and at planting, plant emergence and ridging. The second trial was carried out PotosI (Nariño) with a randomized blocks desing, using the fungicide metiltiofanato and carbendazim in dossages of 3, 4, 5 kg/ha divided by three spray epoques, at planting, plant emergence and ridging. In the two trials were evaluated plants wilt and yield of healthy and damage tubers. The results of the first trial showed that metiltiofanato and carbendazim sprayed at planting time, plant emergence and ridging time can control the disease in 96% and 95% respectively. According to economic analysis, the best treatment was metiltiofanato. The obtained results from the second trial showed that the fungicides metiltiofanato and carbendazim with the three evaluated dossages gave and excellent protection against the disease with control percentajes between 93.2% and 95.5% without any significative difference among them with high significative differences with the check. The economic analysis showed that metiltiofanato was the best treatment using 1.5 kg/ha sprayed on the planting, emergence and ridging time respectively followed of carbendazim 1.5 L/ha sprayed in the same was before mentioned. Se realizaron dos experimentos sobre control químico de Is enfermedad "Mortaja blanca" de Ia papa causada par el hongo Rosellinia sp. El primero en Tuquerres (Naririo); se use un diseño de parcelas divididas utilizando los fungicidas metiltiofanato 5 kg/ha; carbendazim 5 L/ha; carboxin + captan 2 kg/ha; thiabendazole 2 L/ha y benomyl 1 kg/ha aplicados en tres épocas: siembra y aporque; emergencia, apor-que y siembra, emergencia y aporque. El segundo experimento se Hever a cabo en Potosi (Naritio), bajo un diseño de bloques al azar, utilizando los fungicidas metiltiofanato y carbendazim en dosis de 3, 4 y 5 kg/ha; dividiendo estas dosis en tres épocas que fueron siembra, emergencia y aporque. En los dos experimentos se evaluo el marchitamiento de plantas y Ia producción de tubérculos sanos y afectados por el hongo. Los resultados obtenidos en el primer experimento mostraron que los fungicidas metiltiofanato y carbendazim aplicados en las épocas de siembra, emergencia y aporque, controlaron las enfermedades en 96 y 95% respectivamente. Desde el punto de vista economico, el mejor tratamiento fue el metiltiofanato. Los resultados obtenidos en el segundo experimento demostraron que los fungicidas metiltiofanato y carbendazim en las tres dosis evaluadas controlaron eficientemente la enfermedad con porcentajes que oscilaron entre 93.2% y 95.5% de control sin diferencias significativas entre ellos, pero con diferencias altamente significativas res-pecto al testigo. El análisis económico determine que metiltiofanato es el optima tratamiento en dosis de 1.5 kg/ha aplicado a la siembra, emergencia y aporque, respectivamente, seguido de carbendazim en dosis de 1.5 L/ha aplicado en las mismas épocas. Papa-Solanum tuberosum 2019-09-05T19:36:17Z 2019-09-05T19:36:17Z 1990 article Artículo científico http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article https://purl.org/redcol/resource_type/ART http://purl.org/coar/version/c_970fb48d4fbd8a85 0018-8794 http://hdl.handle.net/20.500.12324/35377 17602 reponame:Biblioteca Digital Agropecuaria de Colombia repourl:https://repository.agrosavia.co instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa Revista ICA 3 139 147 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Acceso a texto completo info:eu-repo/semantics/openAccess application/pdf application/pdf Nariño Túquerres, Potosí C.I Obonuco Colombia Instituto Colombiano Agropecuario - ICA Pasto (Colombia) Revista ICA; Vol. 25, Núm. 3 (1990): Revista ICA (Julio-Septiembre);p. 139-147