Powdery Mildew
Reaction to Powdery Mildew (incited by Erysiphe graminis f.sp. Tritici). Rated at Feekes growth stage GS 10.3.
| Code | Term | Description |
|---|---|---|
| 0 | 0 to < 1% leaf area affected on any leaf | |
| 1 | 1-50% leaf area affected on fourth leaf | |
| 10 | > 15% leaf area affected on flag leaf | |
| 2 | 1-5% leaf area affected on third leaf | |
| 3 | 5-15% leaf area affected on third leaf | |
| 4 | > 15% leaf area affected on third leaf | |
| 5 | 1-5% leaf area affected on second leaf | |
| 6 | 5-15% leaf area affected on second leaf | |
| 7 | > 15% leaf area affected on second leaf | |
| 8 | 1-5% leaf area affected on flag leaf | |
| 9 | 5-15% leaf area affected on flag leaf |