Opal
Main crop crisp variety. Excellent product quality after cold (4°C) and long-term storage. It is also suitable for the production of dehydrated potatoes. Short oval tubers with light yellow flesh. Resistant to PCN Ro1, 4; high resistance to leaf- and tuber blight, blackleg, common scab and internal rust spot.
Plant
|
| Maturity |
Medium early |
| Plant type |
Stem type |
| Growth habit |
Semi-upright |
| Color of flower |
Red-violet |
| Foliage development |
Rapid, Medium |
| Number of tubers |
Medium, High |
| Dormancy |
Very high |
Tuber characteristics
|
| Tuber shape |
Round oval |
| Flesh color |
Light yellow |
| Eye depth |
Medium |
| Skin color |
Yellow |
| Skin characteristic |
Netted |
Resistances
|
| Nematodes |
Ro 1, Ro 4 |
| Potato wart disease |
Race 1 * |
| Leaf blight |
Medium, High |
| Tuber blight |
High |
| Rhizoctonia |
Medium, High |
| Black leg |
High |
| Common scab |
Medium, High |
| Internal rust spot |
High |
| Damages |
Medium |
| Bruising |
Medium, High |
| PVY |
High, Very high |
| PVY ntn |
High |
| PLRV |
Low, Medium |
Yield and Quality
|
| Market outlet |
Chips, 4° C storage suitability, Dehydrated potato products |
| Yield |
Medium, High |
| Share oversize |
Medium, High |
| Share undersize |
Low, Medium |
| Cooking type |
Mealy cooking |
| After cooking discoloration |
Low |
| Discoloration raw |
Low |
| Dry matter content |
Medium |
| Chips quality after harvest |
Very good |
| Chips quality after longterm storage |
Very good |
| Chips quality after longterm storage at 4°C |
Good, Very good |
* was found to be resistant in one EU country
