Plant populations

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Very attractive bright skin

Uniform tuber size and shape

Good bruising tolerance

Good cooking quality

Good storability

General production advice ware potatoes

Row distanceSeed size Plant population/ha 75 cm 90 cm

Fertilizer

Adapt fertilization to soil analysis.Nitrogen (N): 110% in comparison to other mediumearly varieties.Potassium (K): approx. 200 kg K/ha before plantingand 250 kg K/ha after tuberisation improves qualityPhosphate fertilization according to standard advice.Organic manure will help to maintain crop vitality. Manganese and magnesium will encourage a strongfoliage and prevent premature senescence.

Agronomic characters

MaturityYield earlyDormancyYield matureTuber sizeTuber shapeNumber of tubersSkin colourFlesh after cookingCooking typeDry matter content/StarchUWW/Specific gravityInternal bruisingMetribuzin sensitivityLittle Potato disorder

Medium earlyGoodLongGoodMediumRound oval12-14Light yellowLight yellowAB - Slightly firm20,3% / 14,4%371 / 1,079Not sensitive

VDZ 87- 38 X CASANOVA

7193739578

48260

29 Oct 2021www.hzpc.com

CHOPIN

Resistances

Ro1/4Ro2/3Pa2Pa3

PCN ResistanceF1F2F6F18

Wart disease92

3882

* HZPC own analysis/no official analysis

*****

Foliage BlightTuber BlightAlternariaCommon scabPowdery scabSpraingPVYYntn tuber tolerance

6867705351901566

Skin and flesh colour Cooking type Maturity

Pre-treatment and planting

Growing attention points

Haulm killing and harvest

HZPC takes no responsibility for any harmful consequences that might eventually occur when using this information.

General production advice ware potatoes

CHOPIN has a good dormancy.Allow the seed to acclimatize to the local conditions before planting.Tuber and/or soil treatments are advised to control Rhizoctonia, Silver scurf and other soil borneskin diseases. Azoxystrobine as a soil application shows good results on many fungi.The best quality will be reached on fertile and medium heavy clay-soil types. Avoid soils with high common scab risk.When planted on heavier soil, a good structure is crucial.Avoid fields which are sensitive to common scab.Plant CHOPIN 3 cm deeper to obtain for a stronger root system and nutrient uptake.

Emergence is uniform with a good foliage development.The use of metribuzin is recommended before emergence. When applying post emergence, use thelow dose system.Weather conditions have a strong influence on metribuzin effectivity, adapt dose to thecircumstances.Irrigation is advised under dry circumstances.Irrigation results in a more uniform product with better cooking quality.Preventive spraying against Phytophthora is advised.

Aim for a dry matter content of 20 %.Start to measure the dry matter content about 3 weeks before the expected harvest date.CHOPIN has a good tuber detachment.In general, CHOPIN has a good stolone detachment and early skin set. CHOPIN is quite resistant against bruising, unless extreme conditions occur.

29 Oct 2021

Storage

CHOPIN has a good dormancy, therefore ambient storage can be used for the first months afterharvest. Mechanical cooling is required for longer than 4 months storage.REFRIGERATED STORAGEWhen harvested under normal circumstances, mechanical cooling can start very soon (3 days) aftercuring. A cool and dry product prevents increase of silver scurf.Prevent dehydration, cool with a small difference between cooling air and product temperature.Reduce temperature 0,5 - 0,7 degrees a day to a stable value of 3°C-4°C.Ventilate regularly, but briefly, to prevent CO2 accumulation. Any fluctuation in temperature, combined with condensation, can result in early sprouting and ahigh risk of Silver scurf.

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VDZ 87- 38 X CASANOVACHOPIN