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Revista Facultad Nacional de Agronomía Medellín
Article . 2014 . Peer-reviewed
License: CC BY NC
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Revista Facultad Nacional de Agronomía Medellín
Article
License: CC BY NC ND
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Efecto de la Infección de Spongospora subterranea f. sp. subterranea en Hospederos Alternos

Authors: Arcila Aristizábal, Ivón Magaly; González Jaimes, Elena Paola; Zuluaga Amaya, Catalina María; Marín Montoya, Mauricio Alejandro; Cotes Torres, José Miguel;

Efecto de la Infección de Spongospora subterranea f. sp. subterranea en Hospederos Alternos

Abstract

Como una de las posibles medidas de manejo de aplicación práctica para la reducción de inóculo de Spongospora subterranea f. sp. subterranea en suelos infestados con quistosoros del patógeno, se evaluó la incidencia de su infección en diferentes plantas hospederas durante tres siembras consecutivas. Las siembras se realizaron en macetas que contenían 2 kg de suelo previamente inoculados con una concentración de 1x105 quistosoros.g-1 de suelo; las cosechas de las plantas se realizaron cada tres meses, seleccionando dos muestras de raíz por maceta, una para observación de estructuras del patógeno por microscopía de luz, previa tinción con azul de tripano al 0,05% y otra para detección molecular mediante PCR en tiempo real (qPCR). Para el análisis estadístico se evaluaron los modelos Exponencial y Monomolecular, con el objetivo de seleccionar el que mejor se ajustara a los datos obtenidos. Según el valor estimado para la incidencia de estructuras del patógeno en las raíces, en las especies Cyphomandra betacea, Physalis peruvianum, Solanum nigrum, Allium cepa, Solanum quitoense y Rumex crispus, se reduce la presencia de quistosoros y zoosporangios después de tres siembras consecutivas en condiciones de casa de malla, mientras que en las especies Petroselinum crispum, Pennisetum clandestinum, Zea mays y Solanum lycopersicum se aumenta la incidencia de estructuras de S. subterranea f. sp. subterranea en las raíces.

Keywords

rotación de cultivos, Sarna polvosa, trap crops, crop rotation, Powdery scab, plantas trampa, Solanum tuberosum

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Green
gold