Table 1.
Macroscopic reaction and microscopically visible generation of uredospore pustules of genotypes carrying leaf rust resistance genes (Lr-genes) inoculated with different single spore isolates 168 hai.
| Single spore isolates |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Genotype/Thatcher NIL | 77wxR |
Hk1/3-04 |
Hk12/3-01 |
167/176WxR |
58WxR |
13/20WxR |
||||||
| Accession/cultivar/NIL | Rating | Pustules mm-2 | Rating | Pustules mm-2 | Rating | Pustules mm-2 | Rating | Pustules mm-2 | Rating | Pustules mm-2 | Rating | Pustules mm-2 |
| Thatcher | 4 | 5.2 ± 2.5 | 4 | 8.0 ± 3.3 | 4 | 9.2 ± 2.7 | 4 | 7.2 ± 2.0 | 4 | 7.8 ± 3.9 | 4 | 6.7 ± 0.2 |
| PI272560 | 0() | 0.0 ± 0.0 ∗ | 0 | 0.0 ± 0.0∗ | 0 | 0.0 ± 0.0∗ | 0 | 0.0 ± 0.0∗ | 0 | 0.0 ± 0.0∗ | 0 | 0.0 ± 0.0∗ |
| 36554 | 3N | 4.7 ± 1.1 | 3N | 4.0 ± 1.1∗ | 3N | 4.3 ± 0.9∗ | 3N | 4.7 ± 1.4∗ | 2N | 2.1 ± 1.4∗ | 2N | 3.2 ± 1.2∗ |
| Lr10 (Thatcher∗6/Exchange) | 4 | 6.7 ± 2.3 | 4 | 5.3 ± 2.0 | 4 | 5.3 ± 2.9∗ | 4 | 5.6 ± 3.5 | 4 | 6.6 ± 2.1 | 2-3 | 3.0 ± 0.3∗ |
| Lr11 (Thatcher∗6/Hussar) | 2 | 2.8 ± 0.7∗ | 4 | 5.6 ± 0.6∗ | 4 | 5.8 ± 1.3∗ | 4 | 5.8 ± 1.4∗ | 4 | 7.7 ± 2.3 | 4 | 5.2 ± 0.3∗ |
| Lr17 (Thatcher∗6/Klein Lucero) | 2-3 | 2.0 ± 0.9∗ | 4 | 6.3 ± 3.0 | 4 | 6.2 ± 3.0 | 4 | 3.9 ± 1.1∗ | 4 | 5.0 ± 1.9 | 4 | 4.5 ± 0.9∗ |
| Lr20 (Thatcher∗6/Jimmer) | 4 | 8.6 ± 2.5∗ | 2 | 2.5 ± 0.4∗ | 4 | 6.4 ± 3.2 | 4 | 5.2 ± 1.6 | 4 | 7.6 ± 2.6 | 4 | 5.0 ± 2.5 |
| Lr28 (Thatcher∗6/C-77-1) | 2 | 1.2 ± 0.3∗ | 0; | 0.0 ± 0.0∗ | 2-3 | 2.9 ± 0.9∗ | 4 | 5.6 ± 1.7 | 4 | 4.6 ± 1.8 | 0; | 0.3 ± 0.0∗ |
| Lr37 (Thatcher∗6/VPM) | 4 | 7.4 ± 1.7 | 4 | 4.3 ± 1.5 | 4 | 7.1 ± 0.4 | 4 | 5.5 ± 0.3 | 4 | 7.2 ± 1.8 | 4 | 7.3 ± 0.2∗ |
| Tm (Triticum monococcum, Ks92WGRC23) | 0;-1 | 1.0 ± 0.0∗ | 1–2 | 2.1 ± 0.8∗ | 3 | 2.4 ± 0.1∗ | 3 | 3.2 ± 1.2∗ | 1-2 | 2.3 ± 0.5∗ | 3 | 3.1 ± 1.5∗ |
Leaves of genotypes rated without symptoms are displayed by “0,” by “0;” with occasional hypersensitive spots, by “1” with macrosocpic visible hypersensitive spots without uredospore pustules, by “2” leaves with large hypersensitive areas around uredospore pustules, by “3” with uredospore pustules and partial defense reaction on leaves, by “4” with uredospore pustules and no visible necroses or hypersensitive spots around infection sites. “N” was used if large necrotic areas were visible. Asterisks behind the averages of microscopically visible pustules per square mm of 3 replications which consist of three leaves respectively show significant differences of a near isogenic line (NIL) to the susceptible control cultivar Thatcher (α = 0.05).