Opal

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