Yield : 118 % of Désirée.
Grading : Proportion of large tubers: fairly high.
Susceptibility to diseases :
Leaf blight : slightly susceptible.
Tuber blight : moderately susceptible.
Black wart : not attacked.
Common scab : moderately susceptible.
Virus X : resistant.
Virus A : resistant.
Virus Y : susceptible to very susceptible.
Leaf roll : fairly susceptible.
Nematode RO 1-4 : resistant.
Internal tuber defects : Moderately susceptible to rust spots, slightly suscep. to hollow heart, fairly susceptible to black spots.
Susceptibility to desprouting : Rather slightly susceptible.
Susceptibility to bruising : Susceptible
Dormancy period : Medium
Culinary quality : Table-use group B, very slight blackening after cooking, unsuitable for frying.
Dry matter content : Medium.
Keeping quality : Good.

Morphological characteristics

Tuber : Cylindrical oval , half-sunken eyes, distributed over the whole surface of the tuber, violet skin, violet flesh.
Sprout : Purple, slight hairiness.
Plant : Tall, upright habit, entirely pigmented.
Stem : Thick, violet.
Leaf : Dark green, semi-glossy, little divided; purple petiole and veins.
Flowering : Moderately rare.
Flower : White, streaked with purple.