Arsenal

Arsenal is a high yielding maincrop crisping variety with extensive resistances to potato cyst nematodes.

The variety produces high tuber numbers. The tubers are round oval in shape with shallow eyes. It is yellow skinned with a light yellow flesh colour.

Market outlet: crisping & processing
Duel PCN resistance and tolerance
High yielding
Good virus resistance

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What our customers say

Very low outgrades
“As seed growers Arsenal gives us consistently good tuber numbers and yield with very low out grades, and we are acutely aware of the benefits of the resistance and tolerance.”
- Peter Shiells, Mertoun Estate Farms Ltd, Scottish Borders

Significant key benefits
“Arsenal has been a mainstay of the UK crisping sector for many years. At Spearhead Marketing Ltd. we continue to grow Arsenal for our key customers, having delivered in excess of 10,000 tonnes of the variety annually over the last 5 years. Arsenal provides significant key benefits for our growers, not least a consistent yield, but also industry leading resistance and tolerance to G. pallida nematodes.”
– Darren Mackie, Director, Greenseed Ltd & Spearhead Marketing Ltd.

Suggested fertiliser treatment
Nitrogen: standard advice -50kg to influence dry matter levels.
Potassium: standard advice +10% to influence tuber numbers.
On low Potassium index soils apply Potassium Chloride up to December. Applications after this date should be Potassium Sulphate to avoid reducing the tuber dry matter.
Phosphate: standard advice.

Cultivation
Chitting is recommended and plant into warm soils.
Regular irrigation will improve uniformity of growth, yield performance and prevents growth cracks.
It is recommended to apply a seed treatment against Rhizoctonia.

Plant spacing
30/40mm: 19cm (58,500 plants/Ha).
40/50mm: 23cm (48,300 plants/Ha).
50/60mm: 28cm (39,600 plants/Ha).
Spacing figures for 90cm row width.

Herbicide sensitivity
Metribuzin (Sencorex) may cause foliage discolouration but, no yield effect has been found.

Fungicides
Arsenal is susceptible to Foliage and Tuber Blight so a preventative spray programme is required.

Storage
Good dormancy, suitable for medium term storage but it is not uncommon for crops to be processed green top or to be stored through to May.

Arsenal characteristics

Plant and tuber

Maturity

Maincrop | 5
Tuber shape

Round oval
Flesh Colour

Light yellow | 6
5 low | 9 high

Tuber number

Quite high | 7
5 small | 8 large

Tuber size

Quite large | 7
Skin colour

Yellow
Flower colour

White
4 none | 8 many

No. of berries

None | 4
4 slow | 8 fast

Foliage: - initial development

Average | 7
4 slow | 8 fast

Foliage: - final development

Average | 7
Foliage: - selectability

Average | 6,5
4 weak | 8 firm

Foliage: - firmness

Quite firm | 7
Lightsprout colour

Blue-violet
4 irregular | 8 regular

Uniformity of shape

Regular | 7
5 irregular | 8 regular

Uniformity of size

Quite regular | 6,5
3 insufficient | 8 excellent

Skin finish

Average | 5

Quality characteristics

6 average | 9 high

Average yield

Quite high | 7
300 low | 500 high

Underwater weight

447
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

Minimum sensitive | 7
3 very sensitive | 8 minimum tot none sensitive

Metribuzin

Minimum sensitive | 7
3 very sensitive | 8 minimum tot none sensitive

Bentazon

Minimum sensitive | 7,5
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

Quite sensitive | 6
4 very sensitive | 8 minimum to none sensitive

Black spot

Quite sensitive | 6
17% low | 26,5% high

Dry matter content

22,0%
5 moderate | 8 excellent

Dry matter distribution

Average | 6,5
1 very low | 11 quite high

TGA level

4,1
4 very sensitive | 8 minimum to none sensitive

Raw discolouration

Quite sensitive | 6,5
4 very sensitive | 8 minimum to none sensitive

Discolouration after cooking

Quite sensitive | 6
4 unsuitable | 8 excellent

Suitable for chipping

Average | 6,5
4 unsuitable | 8 excellent

Suitable for crisping

Good | 7,5

Disease resistances

Late blight foliage

Susceptible | 5
Late blight tuber

Very susceptible | 4,5
Common scab

Susceptible | 5
PCN Ro 1/4

Resistant | 9
PCN Ro 2/3

Field resistant | 8
PCN Pa 2 Pallida

Resistant | 9
PCN Pa 3 Pallida

Field resistant | 8
Powdery scab

Minimum to non susceptible | 8
Fusarium

Susceptible | 5
Blackleg

Very susceptible | 4
Black dot

-
Spraing

Minimum susceptible | 7
Leafroll

-
Virus - A

-
Virus - X

Minimum susceptible | 7
Virus - Yn

Minimum to non susceptible | 8
Virus - Yntn (tuber symptoms)

Minimum susceptible | 6,5
Wart disease F1

Resistant | 10
Wart disease F6

-
Wart disease F18

-

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