ORIGINAL ARTICLE
Virulence frequency of Blumeria graminis f. sp. Hordei and the occurrence of powdery mildew on four winter barley cultivars
 
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1
Institute of Plant Protection, Miczurina 20, 60-318 Poznań, Poland
2
University of Agriculture, Dąbrowskiego 159, 60-594 Poznań, Poland
CORRESPONDING AUTHOR
Anna Tratwal
Institute of Plant Protection, Miczurina 20, 60-318 Poznań, Poland
 
Journal of Plant Protection Research 2006;46(3):221–230
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ABSTRACT
Powdery mildew caused by Blumeria graminis f. sp. hordei is one of the most important diseases of barley in Poland. B. graminis is a genetically diverse pathogen with different special forms and races. The aim of the two-years’ experiment was to assess of B. gramins f. sp. hordei virulence frequency and powdery mildew occurrence on four winter barley cultivars. Virulence frequency of the pathogen depended on place and term of exposition. The occurrence of powdery mildew on four winter 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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