Academic Journal
Spatio - temporal spread of Plum pox virus infecting European plum (Prunus domestica L. cv. D'agen) orchard in Mendoza, Argentina.
| العنوان: | Spatio - temporal spread of Plum pox virus infecting European plum (Prunus domestica L. cv. D'agen) orchard in Mendoza, Argentina. |
|---|---|
| Alternate Title: | Distribución espacial y temporal del Plum pox virus en un monte de ciruelo europeo (Prunus domestica L. cv D'agen) de Mendoza, Argentina. |
| المؤلفون: | Dal Zotto, Angélica1 dalzotto.angelica@inta.gov.ar, Porcel, Laura B.2, Marini, Diana B.3, Picca, Cecilia N.2, Córdoba, Mariano4, Teich, Ingrid5 |
| المصدر: | Revista de la Facultad de Ciencias Agrarias. 2020, Vol. 52 Issue 1, p261-275. 15p. |
| مصطلحات موضوعية: | *PLUM pox virus, *ORCHARDS, *VIRUS diseases, *STONE fruit, *LEAVES |
| Abstract (English): | Sharka, caused by Plum pox virus (PPV), is considered one of the most serious viral diseases of stone fruits worldwide due to the great yield losses in orchards. In Rama Caída, Mendoza, a 5-year study (2007-2011) was conducted in a European plum cv D'agen orchard using samples from leaves and DAS-ELISA assay against PPV in order to determine incidence over time and spatial spread. Incidence significantly increased between 2007 and 2009, while for the next two years the increase was not statistically significant. Spatial point pattern of PPV at the plot was characterized by the occurrence of some heterogeneous clusters of infected trees located up to 65 m in the west-east direction of the rows over the five years. Point pattern and correlation type-approaches were undertaken using joint-count and Ripley's K function and showed that the detected infected plants had a disease aggregation pattern both in west-east and south-north directions, as well as within and between rows across the plot. This short-distance local dispersion would be associated with diverse factors, such as vector aphids, that were not evaluated in this study. Hence, this work can serve as a basis for further studies of sharka dispersion in Cuyo region. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): | Sharka causada por Plum pox virus (PPV) es considerada la enfermedad más nociva de los frutales de carozo debido a las pérdidas que produce en los montes frutales. En Rama Caída (Mendoza) se estudió la dispersión del PPV en un monte de ciruelo europeo cv D'agen durante 2007 a 2011 a través del análisis de muestras de hojas de árboles individuales por DAS-ELISA, para determinar la incidencia y distribución espacial de virus. Entre 2007 y 2009, el aumento en la incidencia fue estadísticamente significativo mientras que en 2010 y 2011 este no resultó significativo. El PPV se distribuyó en el lote, como un patrón de puntos caracterizado por agrupamientos heterogéneos de árboles infectados, ubicados hasta los 65 m en dirección oeste-este de las filas. A través del análisis de patrones de puntos y de correlación de árboles infectados, mediante la función K de Ripley y el estadístico Joint-count, se comprobó que las plantas infectadas presentaron un patrón espacial agregado, tanto en sentido oeste-este (entre filas), como sur-norte (dentro de fila), indicando una dispersión a corta distancia. Este escenario puede responder a múltiples factores no estudiados, como la presencia de áfidos vectores, y constituir las bases de futuros estudios de dispersión de PPV en Cuyo. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: | Academic Search Index |
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