Severina

Plant and tuber characteristics

• Maturity:
  second early / 7
• Light sprout colour:
  blue violet / BV
• Flower colour:
  white / W
• Number of berries:
  very high / 4
• Foliage - initial development:
  quite fast / 7,5
• Foliage - final development:
  quite good / 7,5
• Foliage - firmness:
  quite firm / 7
• Foliage - selectability:
  average / 6,5
• Skin colour:
  yellow / Y
• Flesh colour:
  light yellow / 6
• Skin finish:
  good / 7
• Tuber shape:
  oval / O
• Regularity of tuber shape:
  regular / 7
• Tuberisation:
  average / 6
• Tuber size:
  large / 8
• Regularity of size:
  quite regular / 6,5

Sensitivity and quality

• Secondary growth:
  quite sensitive / 6,5
• Black spot (internal bruising):
  quite sensitive / 6
• Growth cracks:
  quite sensitive / 6,5
• Harvest damage:
  quite sensitive / 6
• Metribuzin - pre-emergence:
  very sensitive / 4
• Metribuzin - post-emergence:
  quite sensitive / 6
• Bentazon:
  - / -
• Ethylene:
  5% fewer tubers / 4
• Underwater weight:
  326
• Dry matter content:
  18%
• Cooking type:
  rather firm / AB
• Discolouration after cooking:
  quite sensitive / 6
• Raw discolouration:
  - / -
• Fries quality:
  unsuitable / 4
• Dry matter distribution:
  - / -
• Crisping quality:
  unsuitable / 4
• TGA-level:
  7,61
• Carvone oil:
  25% more tubers / 8
• Dormancy:
  quite short / 5

Resistances

• Virus - Leaf roll:
  - / -
• Virus - Yn:
  slightly to not susceptible / 8
• Virus - Yntn (tuber):
  slightly susceptible / 6
• Spraing:
  very susceptible / 4,5
• Late blight - foliage:
  very susceptible / 3,5
• Late blight - tuber:
  susceptible / 5
• Fusarium:
  slightly susceptible / 6,5
• Common scab:
  susceptible / 5,5
• Powdery scab:
  slightly susceptible / 7,5
• Virus - A:
  - / -
• Virus - X:
  - / -
• Black dot:
  slightly susceptible / 6
• Erwinia:
  - / -
• Wart disease F1:
  - / -
• Wart disease F6:
  - / -
• Wart disease F18:
  - / -
• Golden nematode Ro 1/4:
  resistant / 9
• Golden nematode Ro 2/3:
  - / -
• White nematode Pa 2:
  - / -
• White nematode Pa 3:
  - / -