Color predominante de la superficie de los tubérculos
| Code | Term | Description |
|---|---|---|
| 1 | Verde amarillento (145B-D,147D, 148D) | |
| 2 | Blanco amarillento (8D) | |
| 3 | Amarillo (10A) | |
| 4 | Amarillo oscuro (13B) | |
| 5 | Amarillo grisáceo (162C) | |
| 6 | Amarillo naranja (19A) | |
| 7 | Naranja pálido (22A; 24B) | |
| 8 | Naranja (26A,B) | |
| 9 | Naranja rojizo (33A) | |
| 10 | Rojo claro (rosado) (51C,D) | |
| 11 | Rojo (46D) | |
| 12 | Púrpura rojizo (61A) |