Fontane

Plant and tuber characteristics

• Maturity:
  early maincrop / 5,5
• Light sprout colour:
  blue violet / BV
• Flower colour:
  white / W
• Number of berries:
  above average / 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:
  light yellow / 6,5
• Skin finish:
  quite poor / 5
• Tuber shape:
  oval / O
• Regularity of tuber shape:
  quite regular / 6,5
• 5 low | 9 high
  Tuberisation:
  quite high / 7
• Tuber size:
  quite large / 7
• Regularity of size:
  quite regular / 6
• 4 short | 8 long
  Dormancy:
  quite short / 5,5

Sensitivity and quality

• Secondary growth:
  quite sensitive / 6
• Black spot (internal bruising):
  quite sensitive / 6
• Growth cracks:
  quite sensitive / 6
• Harvest damage:
  quite sensitive / 6
• Metribuzin - pre-emergence:
  slightly to not sensitive / 8
• Metribuzin - post-emergence:
  slightly to not sensitive / 8
• 3 very sensitive | 8 minimum tot none sensitive
  Bentazon:
  quite sensitive / 6
• 4 poor result | 8 good result
  Ethylene:
  15% to 25% more tubers / 7
• Underwater weight:
  430
• Dry matter content :
  23,2%
• Cooking type:
  floury / BC
• Discolouration after cooking:
  quite sensitive / 6,5
• Raw discolouration:
  sensitive / 5,5
• Fries quality:
  very good / 7,5
• Dry matter distribution:
  average / 6,5
• Crisping quality:
  average / 6
• TGA-level:
  6,1

Resistances

• Virus - Leaf roll:
  slightly susceptible / 6
• Virus - Yn:
  susceptible / 5,5
• Virus - Yntn (tuber):
  slightly susceptible / 7
• Spraing:
  slightly susceptible / 6,5
• Late blight - foliage:
  susceptible / 5
• Late blight - tuber:
  slightly susceptible / 6,5
• Fusarium:
  slightly susceptible / 6
• Common scab:
  slightly susceptible / 6
• Powdery scab:
  slightly susceptible / 6
• Virus - A:
  - / -
• Virus - X:
  slightly susceptible / 7
• Black dot:
  - / -
• Erwinia:
  slightly susceptible / 6
• Wart disease F1:
  quite susceptible / 6
• Wart disease F6:
  moderately susceptible / 8
• Wart disease F18:
  - / -
• Golden nematode Ro 1/4:
  resistant / 9
• Golden nematode Ro 2/3:
  - / -
• White nematode Pa 2:
  - / -
• White nematode Pa 3:
  - / -