Airborne inoculum dynamics of Polystigma amygdalinum and progression of almond red leaf blotch disease in Catalonia, NE Spain
Ver/Abrir
Autor/a
Lázaro, Elena
Vicent, Antonio
Fecha de publicación
2023-02-27ISSN
0003-4746
Resumen
The dynamics of airborne ascospores and disease progress of red leaf blotch (RLB) of almond, caused by Polystigma amygdalinum, and their correlations with weather variables were studied from 2019 to 2021 in two almond orchards located in Lleida, NE Spain. Airborne ascospores were detected and quantified by real-time qPCR using species-specific primers for P. amygdalinum. Ascospores were detected mainly from April to June, with a high variability between the yearly cumulative concentrations. Positive significant correlations were found between the weekly proportion of airborne ascospores and the number of wet and mild days—either combined or separated— accumulated rainfall, number of rainy days, accumulated low temperatures on wet days, and mean and maximum relative humidity. In contrast, several thermal variables (maximum temperature, VPD, and number of warm days) were negatively correlated with ascospore catches. Positive significant correlations were found between the cumulative proportion of ascospores and RLB incidence and severity. Weekly variations in RLB incidence and severity showed significant positive correlations with the number of warm days while negative with the number of mild days. Severity was also positively correlated with several thermal variables (mean, maximum, and minimum temperature, and VPD), and negatively correlated with the number of cold days and wet and mild days. Stronger correlations were generally found with ascospore catches or disease progress when using concurrent weekly weather data. Gompertz, monomolecular, and logistic growth models were evaluated to describe RLB disease progress
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
632 - Enfermedades y protección de las plantas
Páginas
10
Publicado por
Wiley
Publicado en
Annals of Applied Biology
Citación
Pons-Sole, Gemma, Xavier Miarnau, Laura Torguet, Elena Lazaro, Antonio Vicent, and Jordi Luque. 2023. “Airborne Inoculum Dynamics of Polystigma Amygdalinum and Progression of Almond Red Leaf Blotch Disease in Catalonia, NE Spain.”
Annals of Applied Biology doi:10.1111/aab.12831
Número del acuerdo de la subvención
INIA-FEDER/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTA2017-00009-C04-01/ES/Estrategias de control de enfermedades fúngicas del almendro basadas en la epidemiología, en la genética de la resistencia y en las prácticas de cultivo/
MCIN/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I y Programa Estatal de I+D+I orientada a los retos de la sociedad/PID2020-114648RR-C31/ES/DESARROLLO Y APLICACIÓN DE MODELOS PREDICTIVOS, AGENTES DE BIOCONTROL Y MANEJO DE LA RESISTENCIA EN EL CONTROL INTEGRADO DE ENFERMEDADES DEL ALMENDRO/NEW4ALMOND
Program
Fructicultura
Protecció Vegetal Sostenible
Este ítem aparece en la(s) siguiente(s) colección(ones)
- ARTICLES CIENTÍFICS [2651]
Excepto si se señala otra cosa, la licencia del ítem se describe como http://creativecommons.org/licenses/by/4.0/