GrainGenes Reference Report: BIU-231-365
Reference
BIU-231-365
Title
Pathogenicity of barley powdery mildew ( Blumeria graminis f.sp. hordei ) in Poland in 1993-1996
Journal
Biuletyn Instytutu Hodowli i Aklimatyzacji Roslin
Year
2004
Volume
231
Pages
365-376
Author
Gacek E Bilinski ZR Czembor HJ Czembor JH
Language
Polish
Abstract
During 1993-96, pathogenicity of barley powdery mildew ( Blumeria graminis [ Erysiphe graminis ] f.sp. hordei ) was investigated using the car-mounted Jet Spore Trap and benzimidazole technique. Frequencies of specific virulence genes were determined based on a number of colonies on the primary leaf of seedlings of 12 differential cultivars. Cultivar Igri was used as a susceptible control. The highest frequencies had virulences Va12 and Vg. Frequencies of virulences Va9 , Va13 , Va6 , Va7 + k and Va7 + Ab increased in years. The highest coefficient of variability had virulence Va7 + Ab (Cv=59.3%). Strong pathogenic influence of B. graminis f.sp. hordei population of from neighbouring countries on barley plantations in Poland was observed. Virulences Va1 , Va3 and Va7 + Ab were present in all three years, for which the corresponding resistances have never been used in cultivars grown in Poland. No Vo virulence was found
Keyword
barley
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GrainGenes Reference Report: BIU-231-365
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||