SIGNUM

Signum
Variety Name: SignumRights Holder | Breeder: J.J. SCHILTCountry of Origin: Netherlands NetherlandsYear of of introduction: 2004
Signum, is a maincrop starch variety with very extensive potato cyst nematodes and potato wart disease resistance and a very high starch yield.

Plant and tuber characteristics
 
  • Maturity: maincrop / 4
  • Flower colour light purple
  • Number of berries none / 4
  • Foliage: - initial development quite fast / 7,5
  • Foliage: - final development firm / 8
  • Foliage: - selectability quite easy / 7
  • Foliage: - plant firmness firm / 8
  • Flesh colour: light yellow / 6
  • Skin colour: yellow
  • Skin finish: quite good / 6
  • Tuber size: quite large / 7,5
  • Tuber shape: round oval
  • Regularity of tuber shape: regular / 7
  • Tuberisation: low / 5
  • Regularity size: regular / 7


Sensitivity and quality
 
  • Dormancy: short / 4,5
  • Metribuzin: minimum to none sensitive / 8
  • Bentazon: not tested / -
  • Ethylene: not tested / -
  • Second growth minimum: sensitive / 7
  • Growth cracks quite: sensitive / 6,5
  • Black spot (internal bruising): very sensitive / 4
  • Harvest damage: sensitive / 5
  • Underwater weight: 536
  • Dry matter content: 28,4%
  • Dry matter distribution: not tested / -
  • TGA: - level 7,6
  • Crisp quality: average / 6
  • Fries quality: average / 6
  • Cooking type: floury / C
  • Raw discolouration: not tested / -
  • After-cooking darkening: sensitive / 5


Resistances
 
  • Golden nematode Ro 1/4: resistant / 9
  • Golden nematode Ro 2/3: not marked / -
  • White nematode Pa 2: resistant / 9
  • White nematode Pa 3: resistant / 9
  • Late blight-foliage: minimum susceptible / 6,5
  • Late blight-tuber: susceptible / 5
  • Common scab: susceptible / 5,5
  • Powdery scab: minimum susceptible / 7,5
  • Fusarium: not tested / -
  • Erwinia: susceptible / 5
  • Black dot: not tested / -
  • Spraing: susceptible / 5,5 Virus -
  • Leaf Roll: not tested / -
  • Virus - A: not tested / -
  • Virus - X: minimum susceptible / 6
  • Virus - Yn: minimum susceptible / 6
  • Virus - Yntn (tuber): minimum susceptible / 7,5
  • Wart disease F1: resistant / 10
  • Wart disease F6: resistant / 10
  • Wart disease F18: slightly susceptible / 9