Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.iniap.gob.ec/handle/41000/5088
Tipo de Documento: Congreso
Resumen
Autor : Cañarte Bermúdez, Ernesto
Navarrete Cedeño, José Bernardo
Solórzano, Ramón
Mendoza García, Alma
Cornejo, Juan Francisco
Álvarez-Quinto, Robert Alexander
Lockhart, Benham E
Quito-Ávila, Diego
Título : Monitoring the spread of maize chlorotic mottle virus and sugarcane mosaic virus under high disease pressure in Ecuador
Otros títulos : 11th International Congress of Plant Pathology
Palabras clave : MAÍZ;ZEA MAYS;CAÑA DE AZÚCAR;SACCHARUM OFFICINARUM;VIRUS;ENFERMEDADES DE LAS PLANTAS;ECUADOR
Fecha de publicación : 2018
Editorial : Boston, Massachusetts, U.S.A: ISPP/APS, 2018
Código: **EC-INIAP-BEEP-LA. Portoviejo (INIAPPDF04)
Páginas: 1 p.
Estación: E. E. Portoviejo
Resumen : Maize lethal necrosis (MLN) is currently the most devastating viral disease in corn. The disease is caused by a mixed infection involving Maize chlorotic mottle virus (MCMV) and Sugarcane mosaic virus (SCMV). Although identified as early as 1970’s, MLN has re­emerged during the past 6 years as the major problem in several countries around the world. In Ecuador, the disease was documented in 2015 in yellow corn cultivars, mostly grown in coastal provinces, where the presence of both MCMV and SCMV was confirmed in severely affected plants. However, epidemiology aspects regarding the time of the year when MCMV and SCMV appear in the field, as well as the rate of spread and their prevalence in relationship to insect populations remained unknown. To shed light on the dynamics of MLN in Ecuador, a field experiment was implemented where maize plots were set up in a contiguous overlapping fashion. Plots were planted in 30­day intervals starting from January. In each plot, 25 plants were marked for monitoring the presence of MCMV and SCMV in relationship with insect populations (aphids, thrips and leaf beetles) that were recorded in a weekly basis during one year. Our results indicate at least two peaks of virus infection along the year, with SCMV showing the highest rate of spread compared to MCMV. Aphids (Rhopalosiphum maidis) and thrips (Frankliniella spp) were the most prevalent insects exhibiting population peaks correlated to virus incidence.
Citación : Cañarte Bermúdez, E., Navarrete Cedeño, J. B., Solórzano, R., Mendoza García, A., Cornejo, J. F., Álvarez-Quinto, R. A.,…Quito-Avila, D. (july-august, 2018). Monitoring the spread of Maize chlorotic mottle virus and Sugarcane mosaic virus under high disease pressure in Ecuador [Resumen]. Trabajo presentado en el 11th International Congress of Plant Pathology, Boston, Massachusetts, U.S.A.
URI : http://repositorio.iniap.gob.ec/handle/41000/5088
Aparece en las colecciones: Investigaciones EEP

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