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Estima

Estima is a white skinned table variety with light yellow flesh colour.

Tuber numbers are good and the oval tubers are quite large. Estima has shallow eyes and uniform size and can be grown on most soils. The dry matter content is good and it has a floury texture once cooked. With a mild flavour, Estima is best for simple recipes like mashed potatoes and wedges

  • Market outlet: table
  • Maturity: second early
  • Storage: good dormancy

Downloads

Agrico Variety Open Day 2023 Book
Estima GRB CL©Agrico21 (1)
IMG 20190305 WA0005

Cultivation
Pre-sprouting (chitting) or a temperature shock is necessary in order to get a fast initial development. De-sprouting should be avoided. Planting distance at tuber size 35/55mm is about 30cm (45,000 plants per Ha). Tubers tend to grow large so it is important to ensure proper ridging. Use of Sencorex can cause some foliar
discolouration but should not affect yield. Initial development can be slow but further development in good. Estima is slightly sensitive to harvest damage and bruising.

Fertiliser treatment suggestions
The recommendation for Nitrogen application is slightly above standard. Additional Potassium application is not necessary.

Storage
Estima has a good dormancy and therefore can be stored for long periods at 5C.

Resistance
Estima is rather susceptible to Powdery Scab, Common Scab and both Foliage and Tuber Blight. Resistance to Viruses A and Yntn is good. Estima is resistant to Wart Disease Fysio 1, but susceptible to PCN.

Estima characteristics

Plant and tuber

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

Quality characteristics

  • 6 average | 9 high
    Average yield
    High | 8
  • 300 low | 500 high
    Underwater weight
    393
  • A firm | AB rather firm | B rather floury | BC floury | C floury
    Cooking type
    Floury | BC
  • 4 short | 8 long
    Dormancy
    -
  • Resistance to harvest damage
    Quite sensitive | 6
  • 3 very sensitive | 8 minimum tot none sensitive
    Metribuzin
    Minimum to nonsensitive | 8
  • 3 very sensitive | 8 minimum tot none sensitive
    Bentazon
    -
  • 4 poor result | 8 good result
    Ethylene
    -
  • 4 very sensitive | 8 minimum to none sensitive
    Secondary growth
    Minimum to nonsensitive | 8
  • 4 very sensitive | 8 minimum to none sensitive
    Growth cracks
    Minimum sensitive | 7
  • 4 very sensitive | 8 minimum to none sensitive
    Black spot
    Minimum to nonsensitive | 8
  • 17% low | 26,5% high
    Dry matter content
    19,1
  • 5 moderate | 8 excellent
    Dry matter distribution
    -
  • 1 very low | 11 quite high
    TGA level
    -
  • 4 very sensitive | 8 minimum to none sensitive
    Raw discolouration
    -
  • 4 very sensitive | 8 minimum to none sensitive
    Discolouration after cooking
    Quite sensitive | 6
  • 4 unsuitable | 8 excellent
    Suitable for chipping
    Quite difficult | 5
  • 4 unsuitable | 8 excellent
    Suitable for crisping
    -

Disease resistances

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