The European Cultivated Potato Database

 
 

Amethyst

[pedigree] [parents] [similar varieties][tabulated data]
HIGHER TAXON: Solanaceae
GENUS:Solanum L.
Solanum tuberosum L. cv. Amethyst
Pedigree: Climax x SVP S. vernei 60 7 1 [5,6,8,9,20]
Breeder: Uniplanta-Saatzucht KG [9]
Breeder's rights:
Synonyms:
National list: 1977 [8,9,20]
ADMINISTRATION
Country of originGERMANY [4, 6] NETHERLANDS [8, 9, 20]
Data sourceCM [4] CZEHBROD [6] DEU001 [8] DEU416 [9] FRA179 [11] POL IPR BON [20]
Plant health directive EC77/93, requirementsFully tested [4] Part tested [8, 9, 11] Infected [6] Untested [20]
Plant material maintained asTuber [4, 9, 20] In-vitro [6, 11] Cryopreservation [8]
Sample statusAdvanced cultivar [4, 6, 8, 9, 11, 20]
Test conditionsNon organic [4, 6, 8]
PLANT CHARACTERISTICS
BerriesRare to occasional [9]
Flower colourWhite [9]
Flower frequencyRare [9]
Foliage coverModerate to good [9]
MaturityIntermediate to late [4] Intermediate [9] Early to intermediate [8]
TUBER CHARACTERISTICS
Primary tuber flesh colourCream [4] Yellow [8, 9]
Tuber eye depthMedium [9] Shallow to medium [4, 8]
Tuber shapeOval to round [9] Oval [4, 8]
Tuber skin colourWhite to yellow [4, 9]
Tuber skin textureIntermediate [9]
TUBERING CHARACTERISTICS
Dormancy periodMedium [9] Medium to long [4]
Growth crackingLow [9]
Hollow heart tendencyLow [9]
Internal rust spotInfrequent [4, 8, 9]
Resistance to external damageModerate to resistant [9]
Resistance to internal bruisingMedium [9]
Secondary growthMedium [9]
Storage abilityPoor to moderate [8]
Tuber shape uniformityMedium to uniform [9]
Tuber sizeMedium to large [9]
Tubers per plantMany [9]
Yield potentialVery high [9]
UTILISATION CHARACTERISTICS
After cooking blackeningTrace [9]
Cooking type / 411 Cooked textureMealy (floury type) to fairly firm (multi-purpose type) [9]
Enzymic browningLittle to some [9]
Starch contentVery low [4] Medium [8, 9]
TasteModerate [9]
RESISTANCE TO FUNGAL DISEASES
Field immunity to wart racesRace 1 [4, 9]
Resistance to late blight on foliageLow to medium [4, 9] High [8]
Resistance to late blight on tubersMedium to high [8] High [9]
Resistance to powdery scab (Spongospora subterranea)Medium [8]
Resistance to stem canker (Rhizoctonia solani)High [9]
Susceptibility to wart racesRace 1 [8]
Wart (Synchytrium endobioticum)Susceptible [8] Field immune [9]
RESISTANCE TO BACTERIAL DISEASES
Resistance to bacterial soft rot (Erwinia spp.)High [4]
Resistance to blackleg (Erwinia spp.)Medium to high [9]
Resistance to common scab (Streptomyces scabies)Medium to high [9]
RESISTANCE TO VIRUS DISEASES
Resistance to potato leaf roll virusLow [4, 8] Medium to high [9]
Resistance to potato virus ALow [9] Medium [4, 8]
Resistance to potato virus XMedium to high [9]
Resistance to potato virus Y (strain not specified)Medium [4, 8] Medium to high [9]
RESISTANCE TO PESTS
Resistance to Globodera rostochiensis race 1Low [8] High [9] High to very high [4]
Resistance to Globodera rostochiensis race 5Very low to low [4]


Source:
[4] C. Meijer B.V, NETHERLANDS 2005
[6] Potato Research Institute, CZECH REPUBLIC 2010
[8] Federal Research Centre of Agriculture, GERMANY 2005
[9] Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), GERMANY 2005
[11] INRA, FRANCE 2005
[20] Plant Breeding and Acclimatization Institute, POLAND 2005















.