Tuber: Long oval, not very deep eyes, yellow skin, yellowish-white flesh
Plant: Medium to high, semi-upright habit, leafy type
Flowering: Not very abundant
Flower: White, flower bud slightly to moderately pigmented
Fruit: Absent or rare
Growing and use-related charactersYield: 115% of (Sirtema + Bintje) / 2
Grading: Proportion of large tubers: high to very high
Susceptibility to diseases:
• Leaf blight: susceptible
• Tuber blight: NTR.
• Black wart: not attacked
• Common scab: fairly susceptible
• Virus X: resistant.
• Virus A: susceptible.
• Virus Y: susceptible
• Leaf roll: susceptible
• Nematode RO1-4: resistant.
Susceptibility to desprouting: moderately susceptible.
Dormancy period: fairly long
Culinary quality: table-use group B
Dry matter content: low
Alaska is a vigorous early to mid-early variety, with nice tubers of white skin and white flesh.
Well adapted under Mediterranean conditions.