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Jacky

Jacky is a high yielding, early salad variety with very high tuber numbers. Excellent taste and resistance to Foliage and Tuber Blight.

Both stem number and tuber number per plant are very high, with tuber populations up to 2.2 million/Ha producing a high marketable yield. The variety has excellent Foliage and Tuber Blight resistance and is one of the Next Generation of Blight resistant varieties. Good eating quality.

  • Market outlet: salad and organic
  • Very high marketable yield (2.2 million tubers/ha)
  • Pale yellow skin with light yellow flesh
  • Very good eating quality

Downloads

Agrico Variety Open Day 2023 Book
Jacky nestje met doorsnee
Jacky SNG CL®Agrico20
Jacky Kriel GRB®Agrico20
Jacky in de handen

Suggested fertiliser treatment
Nitrogen: standard advice.
Potassium: standard advice.
Phosphate: standard advice.

Cultivation
It is recommended to apply a seed treatment against Rhizoctonia.
Maintain soil moisture levels through the tuber initiation stage of growth to avoid common scab.

Plant spacing
30/40mm: 17cm (98,000 plants/Ha) for 3 rows in a 1.8m bed.
40/50mm: 19cm (88,000 plants/Ha) for 3 rows in a 1.8m bed.

Fungicides
Continue to monitor Hutton criteria for blight alerts.

Storage
Refrigeration is required for long term storage as the variety has medium dormancy.

Jacky characteristics

Plant and tuber

  • Maturity
    Early maincrop | 6
  • Tuber shape
    Oval
  • Flesh Colour
    Yellow | 7
  • 5 low | 9 high
    Tuber number
    Average | 6
  • 5 small | 8 large
    Tuber size
    Quite large | 7
  • Skin colour
    Other
  • Flower colour
    Light purple
  • 4 none | 8 many
    No. of berries
    None | 4
  • 4 slow | 8 fast
    Foliage: - initial development
    Fast | 8
  • 4 slow | 8 fast
    Foliage: - final development
    Fast | 8
  • Foliage: - selectability
    Average | 6,5
  • 4 weak | 8 firm
    Foliage: - firmness
    Firm | 8
  • Lightsprout colour
    Blue-violet
  • 4 irregular | 8 regular
    Uniformity of shape
    Regular | 7
  • 5 irregular | 8 regular
    Uniformity of size
    Regular | 7
  • 3 insufficient | 8 excellent
    Skin finish
    Good | 7

Quality characteristics

  • 6 average | 9 high
    Average yield
    Quite high | 7
  • 300 low | 500 high
    Underwater weight
    398
  • A firm | AB rather firm | B rather floury | BC floury | C floury
    Cooking type
    Floury | BC
  • 4 short | 8 long
    Dormancy
    Quite long | 7
  • Resistance to harvest damage
    Sensitive | 5,5
  • 4 very sensitive | 8 minimum to none sensitive
    Secondary growth
    Minimum sensitive | 7
  • 4 very sensitive | 8 minimum to none sensitive
    Growth cracks
    Minimum sensitive | 7
  • 4 very sensitive | 8 minimum to none sensitive
    Black spot
    Quite sensitive | 6
  • 17% low | 26,5% high
    Dry matter content
    21%
  • 5 moderate | 8 excellent
    Dry matter distribution
    Excellent | 8
  • 1 very low | 11 quite high
    TGA level
    5,4
  • 4 very sensitive | 8 minimum to none sensitive
    Raw discolouration
    Minimum sensitive | 7
  • 4 very sensitive | 8 minimum to none sensitive
    Discolouration after cooking
    Quite sensitive | 6
  • 4 unsuitable | 8 excellent
    Suitable for chipping
    Good | 7
  • 4 unsuitable | 8 excellent
    Suitable for crisping
    Good | 7

Disease resistances

  • Late blight foliage
    Minimum to non susceptible | 9
  • Late blight tuber
    Minimum to non susceptible | 9
  • Common scab
    Very susceptible | 4
  • PCN Ro 1/4
    Susceptible | 1
  • PCN Ro 2/3
    Susceptible | 1
  • PCN Pa 2 Pallida
    -
  • PCN Pa 3 Pallida
    Susceptible | 1
  • Powdery scab
    Susceptible | 5
  • Fusarium
    Minimum susceptible | 6
  • Blackleg
    Minimum susceptible | 6
  • Black dot
    Minimum susceptible | 6
  • Spraing
    Minimum susceptible | 6
  • Leafroll
    -
  • Virus - A
    -
  • Virus - X
    Minimum susceptible | 6,5
  • Virus - Yn
    Minimum to non susceptible | 8
  • Virus - Yntn (tuber symptoms)
    Minimum susceptible | 7
  • Wart disease F1
    Resistant | 10
  • Wart disease F6
    -
  • Wart disease F18
    -
Alex (1)

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