Table 2.
Proportions of varieties of Avena fatua (%) in the seed samples collected in 2015–2017. Number of characterized samples, in 2015, 41 samples; in 2016, 26 samples; in 2017, 32 samples. Seeds were collected in four Latvian regions, and a climatic zone was assigned to each of the collection sites using the description of climatic zones in Latvia [29].
| Year | Region | Zone | % Fatua | % Intermedia | % Grabrata | % Vilis |
|---|---|---|---|---|---|---|
| 2015 | Total | 18.3 | 14.2 | 48.7 | 18.7 | |
| Latgale | East | 44.5 | 5.5 | 31.3 | 18.7 | |
| Vidzeme | Central | 20.0 | 13.2 | 63.8 | 3.0 | |
| Kurzeme | West | 5.0 | 28.6 | 29.0 | 37.4 | |
| Zemgale | West | 1.0 | 10.6 | 72.6 | 15.8 | |
| 2016 | Total | 15.4 | 6.6 | 58.2 | 19.8 | |
| Latgale | East | 53.0 | 1.0 | 33.0 | 13.0 | |
| Vidzeme | Central | 2.4 | 9.6 | 78.0 | 10.0 | |
| Kurzeme | West | 5.0 | 9.0 | 63.0 | 23.0 | |
| Zemgale | West | 5.7 | 6.3 | 51.7 | 36.3 | |
| 2017 | Total | 19.1 | 10.3 | 49.9 | 20.7 | |
| Latgale | East | 57.7 | 7.3 | 14.3 | 20.7 | |
| Vidzeme | Central | 15.4 | 4.6 | 76.6 | 3.4 | |
| Kurzeme | West | 11.8 | 18.0 | 43.5 | 26.8 | |
| Zemgale | West | 2.3 | 11.8 | 49.8 | 36.3 |