Open Access
Table 1
Characterization of Puccinia striiformis populations from common and durum wheat and triticale for virulence and racial composition in Northwest Russia in 2019
| Parameter | P. striiformis host species | ||
|---|---|---|---|
| T. aestivum | T. durum | Tritical e | |
| Number of isolates | 31 | 10 | 14 |
| Number of races a | 2 | 3 | 1 |
| Race frequency (%): | |||
| 111E247 | 88 | 20 | 29 |
| 110E247 | 12 | 0 | 0 |
| 111E213 | 0 | 60 | 0 |
| 111E231 | 0 | 20 | 50 |
| 78E209 | 0 | 0 | 7 |
| 79E209 | 0 | 0 | 7 |
| 78E215 | 0 | 0 | 7 |
| Virulence frequency on “Avocet” lines with Yr genes (%): | |||
| Yr: 5, 10, 11, 12, 15, 24, 26 | 0 | 0 | 0 |
| Yr1 | 88 | 100 | 72 |
| Yr17 | 0 | 0 | 14 |
| YrSp | 100 | 100 | 86 |
| YrSk(27) | 100 | 80 | 100 |
| YrAR | 100 | 100 | 86 |
| Yr: 6, 7, 8, 9, 18, Sp, Jr(18), AvS | 100 | 100 | 100 |
| average number of virulence alleles b | 12.1 | 12 | 11.8 |
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