Yield 90 % of Bintje
Grading: Proportion of large tubers medium
Leaf blight  rather slightly susceptible
Tuber blight rather slightly susceptible
Black wart susceptible
Common scab derately susceptible
Virus X NTR
Virus A resistant
Virus Y rather slightly susceptible
Leaf roll  susceptible
Nematode RO 1-4 NTR
Internal tuber defects Slightly susceptible to rust spots, hollow heart and black spots.
Susceptibility to desprouting Moderately susceptible
Dormancy period Fairly short
Culinary quality Table-use group A, blackening after cooking: nil, rather good fry colour
Dry matter content Fairly good
Keeping quality Fairly short
Dormancy period Medium

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.