caa a22 4500 445367687 CHVBK 20180317142936.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00484-010-0330-4 doi (NATIONALLICENCE)springer-10.1007/s00484-010-0330-4 Effects of meteorological factors on the levels of Alternaria spores on a potato crop [Elektronische Daten] [Olga Escuredo, Maria Seijo, Maria Fernández-González, Isabel Iglesias] Alternaria solani Soraeur produces early blight in Solanum tuberosum L., leading to significant agricultural losses. The current study was carried out on the extensive potato crop situated in north-western of Spain during 2007, 2008 and 2009. In this area potato crops are the most important source of income. In this work we used a Hirst-type volumetric spore-trap for the aerobiological monitoring of Alternaria spores. The highest spore concentrations were recorded during the 2009 cycle (10,555 spores), and the lowest concentrations were recorded during the 2008 cycle (5,471 spores). Over the 3years of study, the highest concentrations were registered during the last stage of the crop. The aim of the study was to observe the influence of meteorological factors on the concentration of Alternaria spores, which can lead to serious infection and early blight. Prediction of the stages during which a crop is particularly vulnerable to infection allows for adjustment of the application of fungicide and is of environmental and agricultural importance. For this reason, we tested three models (P-Days, DD and IWP) to predict the first treatment and decrease the negative effect that these spores have on potato crops. The parameter that showed the most significant correlation with spore concentrations was minimum temperature. We used ARIMA (autoregressive integrated model of running mean) time-series models to determine the forecast. We considered weather data as predictor variables and the concentration of spores on the previous day as the fixed variable. ISB, 2010 Alternaria nationallicence Potato crop nationallicence Meteorological factor nationallicence ARIMA nationallicence Escuredo Olga Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut Seijo Maria Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut Fernández-González Maria Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut Iglesias Isabel Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut International Journal of Biometeorology Springer-Verlag 55/2(2011-03-01), 243-252 0020-7128 55:2<243 2011 55 484 https://doi.org/10.1007/s00484-010-0330-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00484-010-0330-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Escuredo Olga Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut NATIONALLICENCE 700 1- Seijo Maria Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut NATIONALLICENCE 700 1- Fernández-González Maria Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut NATIONALLICENCE 700 1- Iglesias Isabel Department of Vegetal Biology and Soil Sciences, Faculty of Sciences, University of Vigo, 32004, As Lagoas, Spain aut NATIONALLICENCE 773 0- International Journal of Biometeorology Springer-Verlag 55/2(2011-03-01), 243-252 0020-7128 55:2<243 2011 55 484 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer