ORIGINAL ARTICLE
Blumeria graminis f. sp. hordei virulence frequency and the powdery mildew incidence on spring barley in the Wielkopolska province
| 1 | Institute of Plant Protection – National Research Institute Poznań,
Poland Department of Pests Methods Forecasting and Economy of Plant Control,
Władysława Węgorka 20, 60-318 Poznań, Poland |
| 2 | Poznań University of Life Sciences, Department of Mathematical and Statistical Methods,
Wojska Polskiego 28, 60-637 Poznań, Poland |
CORRESPONDING AUTHOR
Anna Tratwal
Institute of Plant Protection – National Research Institute Poznań, Poland Department of Pests Methods Forecasting and Economy of Plant Control, Władysława Węgorka 20, 60-318 Poznań, Poland
Institute of Plant Protection – National Research Institute Poznań, Poland Department of Pests Methods Forecasting and Economy of Plant Control, Władysława Węgorka 20, 60-318 Poznań, Poland
Submission date: 2013-09-17
Acceptance date: 2014-01-14
Journal of Plant Protection Research 2014;54(1):28–35
KEYWORDS
TOPICS
ABSTRACT
Powdery mildew caused by fungi Blumeria graminis f. sp. hordei is one of the most common barley diseases in Polish meteorological conditions. The powdery mildew fungus is made up of different races and forms that are highly specialized. Barley cultivars might be resistant to a certain race of the mildew fungus, but susceptible to another race. Development of the disease is rapid in temperatures from 12 to 20°C, and in humid weather. The aim of the two-year experiment was to assess B. graminis f. sp. hordei
virulence frequency and powdery mildew occurrence on five spring barley cultivars. Virulence frequency of the pathogen depended on place and term of exposition. The occurrence of powdery mildew on spring barley cultivars depended on virulence frequency of
the pathogen and weather conditions.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
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