Report from the Sub-committee on Agriculture |
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| Table 8.3 Frequency of damaging attacks of fungal diseases in winter wheat in Denmark, level of resistance of available varieties, and genetic basis and future potential for resistance (modified on the basis of Hovmøller et al., 1998). |
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| Mildew | Yellow rust | Leaf spot of wheat | Glume blotch of wheat | |
| Years with attacks | ||||
| Strong | 93,94,96 | 88-90 | 87,96-98 | - |
| Moderate | 88-92, 95, 98 | 92 | 88,91,94-95 | 97 |
| Weak | 97 | 91, 93-97, 98 | 89,90,92,93 | 88-96, 98 |
| Resistance* (number of varieties) | ||||
| High | 2 | 32 | 0 | Not known |
| Medium | 3 | 4 | 30 | Not known |
| Low | 34 | 2 | 8 | Not known |
| Resistance basis | Few specific genes + partial resistance | Few specific genes + partial resistance | Partial resistance | Partial resistance |
| Evolution in pathogen | Rapid | Rapid | Moderate | Moderate |
| Future potential with conventional breeding | High | High | Moderate | Low |
* Resistance is based on % coverage of leaf area in unsprayed observation plots, 1995-97.