Fontane

Plant and tuber

• Maturity
  Early maincrop | 5,5
• Tuber shape
  Oval
• Flesh Colour
  Light yellow | 6,5
• 5 small | 8 large
  Tuber size
  Quite large | 7
• 5 low | 9 high
  Tuberisation
  Quite high | 7
• Skin colour
  Yellow
• Flower colour
  White
• 4 none | 8 many
  Number of berries
  Below average | 5
• 4 slow | 8 fast
  Foliage: - initial development
  Quite good | 7,5
• 4 slow | 8 fast
  Foliage: - final development
  Average | 7
• Foliage: - selectability
  Average | 6
• 4 weak | 8 firm
  Foliage: - firmness
  Quite firm | 7
• Lightsprout colour
  Blue-violet
• 4 irregular | 8 regular
  Regularity of tuber shape
  Quite regular | 6,5
• 5 irregular | 8 regular
  Regularity of size
  Quite regular | 6
• 3 insufficient | 8 excellent
  Skin finish
  Average | 5

Sensitivity and quality

• 6 average | 9 high
  Relative yield
  High | 8
• 300 low | 500 high
  Underwater weight
  430
• 4 short | 8 long
  Dormancy
  Quite short | 5,5
• 4 unsuitable | 8 excellent
  Fries quality
  Good | 7,5
• 4 unsuitable | 8 excellent
  Crisping quality
  Average | 6
• 3 very sensitive | 8 minimum tot none sensitive
  Metribuzin
  Minimum to nonsensitive | 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
• 4 very sensitive | 8 minimum to none sensitive
  Secondary growth
  Quite sensitive | 6
• 4 very sensitive | 8 minimum to none sensitive
  Growth cracks
  Quite sensitive | 6
• 4 very sensitive | 8 minimum to none sensitive
  Black spot
  Quite sensitive | 6
• 17% low | 26,5% high
  Dry matter content
  23,2%
• 5 moderate | 8 excellent
  Dry matter distribution
  Average | 6,5
• 1 very low | 11 quite high
  TGA level
  6,1
• 4 very sensitive | 8 minimum to none sensitive
  Raw discolouration
  Sensitive | 5,5
• 4 very sensitive | 8 minimum to none sensitive
  Gray discolouration (after cooking)
  Quite sensitive | 6,5
• A firm | AB rather firm | B rather floury | BC floury | C floury
  Cooking type
  Floury | BC
• Harvest damage
  Quite sensitive | 6

Resistance

• Late blight foliage
  Susceptible | 5
• Late blight tuber
  Minimum susceptible | 6,5
• Common scab
  Minimum susceptible | 6
• PCN Ro 1/4
  Resistant | 9
• PCN Ro 2/3
  -
• PCN Pa 2
  -
• PCN Pa 3
  -
• Powdery scab
  Minimum susceptible | 6
• Fusarium
  Minimum susceptible | 6
• Erwinia
  Minimum susceptible | 6
• Black dot
  -
• Spraing
  Minimum susceptible | 6,5
• Leafroll
  Minimum susceptible | 6
• Virus - A
  -
• Virus - X
  Minimum susceptible | 7
• Virus - Yn
  Susceptible | 5,5
• Virus - Yntn (tuber symptoms)
  Minimum susceptible | 7
• Wart disease F1
  Quite susceptible | 6
• Wart disease F6
  Moderate susceptible | 8
• Wart disease F18
  -