Rock

Strong growing with suitability for multiple markets

  • Produces high numbers of attractive tubers with light yellow flesh.
  • Suitable for both table and French-fry markets.
  • Robust growing type with dual eelworm resistance, performs well on unirrigated ground.

Storage

3oC
8 Months

Advice

Do you need specific advice about seed rates, fertilisers or agronomy? Ask your local supplier or Meijer contact.

  • Slightly susceptible to Sencorex (Metribuzin) when applied pre-emergence.
  • Adjust seed rates to fulfil end market requirements. Closer spacing’s will produce shorter tubers more suited to pre-pack market.
Characteristics
Maturity 6
Skin Colour Yellow
Flesh Colour* 7
Tuber Shape** O
Eye Depth 7
Tuber Uniformity 7
Tuber Size 7.5
Freedom From Outgrades 7.5
Dry Matter % 22
Suitability for Cooking† 8BCC
Dormancy 5

Comments

1 = Negative   9 = Positive
* 8 = Yellow   4 = White
** R = Round   O = Oval   L = Long
† A = Firm   D = Mealy

Resistance
PLRV 7
A-virus 7
X-virus 7
Y-virus 6
Yntn-virus 7
Foliage Blight 4
Tuber Blight -
Common scab 7
Spraing 6
Bruising 7
Secondary growth 8
Ro1 9
Ro2/3 9
Pa2 9
Pa3 3
wz 1 (D1) 10
wz 2/6 (G1/O1) 3
wz 18 (T1) 3

9 = Highly Resistant   1 = Very Susceptible

Resistance to Nematodes:
Ro/Pa(x) = Globodera rostochiensis/G.pallida. Pathotype(x)
Ro1(=A), Ro2/Ro3(=BC), Pa2(=D), Pa3(=E)
9 = Highly Resistant   1 = Very Susceptible

Resistance to Wart Disease:
wz 1(D1), wz 2/6 (G1/O1, wz 18 (T1)
10 = Highly Resistant   3 = Very Susceptible

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