Twinner

Plant and tuber characteristics

• Maturity
  early / 7,5
• Light sprout colour
  red violet / RV
• Flower colour
  white / W
• Number of berries
  high / 4,5
• Foliage - initial development
  quite fast / 7,5
• Foliage - final development
  average / 7
• Foliage - firmness
  quite firm / 7
• Foliage - selectability
  average / 6
• Skin colour
  yellow / Y
• Flesh colour
  yellow / 7
• Skin finish
  good / 7
• Tuber shape
  oval / O
• Regularity of tuber shape
  regular / 7
• Tuberisation
  quite low / 5
• Tuber size
  quite large / 7,5
• Regularity of size
  quite regular / 6,5
• Dormancy
  average / 6

Sensitivity and quality

• Secondary growth
  quite sensitive / 6,5
• Black spot (internal bruising)
  slightly sensitive / 7,5
• Growth cracks
  slightly sensitive / 7
• Harvest damage
  quite sensitive / 6,5
• Metribuzin - pre-emergence
  slightly sensitive / 7,5
• Metribuzin - post-emergence
  sensitive / 5,5
• Bentazon
  slightly sensitive / 7,5
• Ethylene
  15% to 25% more tubers / 7
• Underwater weight
  359
• Dry matter content
  19,7%
• Cooking type
  rather firm / AB
• Discolouration after cooking
  quite sensitive / 6,5
• Raw discolouration
  quite sensitive / 6
• Fries quality
  above average / 6,5
• Dry matter distribution
  excellent / 8
• Crisping quality
  unsuitable / 5
• TGA-level
  7,8
• Carvone oil
  25% more tubers / 8
• Dormancy
  average / 6

Resistances

• Virus - Leaf roll
  - / -
• Virus - Yn
  slightly susceptible / 6,5
• Virus - Yntn (tuber)
  susceptible / 5
• Spraing
  slightly susceptible / 6
• Late blight - foliage
  slightly to not susceptible / 8
• Late blight - tuber
  slightly to not susceptible / 9
• Fusarium
  slightly susceptible / 6
• Common scab
  susceptible / 5,5
• Powdery scab
  very susceptible / 4
• Virus - A
  - / -
• Virus - X
  - / -
• Black dot
  slightly susceptible / 6,5
• Erwinia
  - / -
• Wart disease F1
  resistant / 10
• Wart disease F6
  - / -
• Wart disease F18
  - / -
• Golden nematode Ro 1/4
  resistant / 9
• Golden nematode Ro 2/3
  - / -
• Golden nematode Ro 5
  - / -
• White nematode Pa 2
  - / -
• White nematode Pa 3
  - / -