Leaf pigmentation
| Code | Term | Description |
|---|---|---|
| 1 | Entire lamina purple or pink | |
| 2 | Basal area pigmented | |
| 3 | Central spot | |
| 4 | Two stripes (V-shaped) | |
| 5 | One stripe (V-shaped) | |
| 6 | Margin and vein pigmented | |
| 7 | One pale green or chlorotic stripe on normal green | |
| 8 | Normal green | |
| 9 | Dark green | |
| 10 | Other (specify) | |
| X | Mixture |