Abstract
In 2009-2010, random samples of the causal agent of barley powdery mildew were collected in Daugavpils (south-eastern Latvia, Latgale region), Stende (north-western Latvia, Kurzeme region) and Priekui (north-eastern Latvia, Vidzeme region). Virulence frequency, complexity and pathotypes were calculated in the pathogen populations. Significant differences of virulence detected by the genes Va1, Va3 and Va13 occurred among samples of the pathogen population collected in different parts of Latvia. Nei index, Müller's index, Kosman index, Shannon index and Simpson index showed considerably higher diversity in Daugavpils and Stende during 2009-2010. In Daugavpils, the population of Blumeria graminis f.sp. hordei was particularly characterised by high diversity.
| Original language | English |
|---|---|
| Pages (from-to) | 41-47 |
| Number of pages | 7 |
| Journal | Proceedings of the Latvian Academy of Sciences, Section B: Natural, Exact, and Applied Sciences |
| Volume | 66 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1 Jan 2012 |
Keywords
- barley
- Blumeria graminis f.sp. hordei
- complexity
- pathotype
- resistance
- virulence
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