The European Cultivated Potato Database

 
 

Irys

[pedigree] [parents] [similar varieties][tabulated data]
HIGHER TAXON: Solanaceae
GENUS:Solanum L.
Solanum tuberosum L. cv. Irys
Pedigree: Kennebec x Giewont [20]
Kennebec x Giewont (adg,chi,dms) [6,9]
Breeder: 5 [9]
Bonin [20]
Breeder's rights:
Synonyms:
National list: 1974 [9]
1975 [20]
ADMINISTRATION
Country of originPOLAND [6, 9, 20]
Data sourceCZEHBROD [6] DEU416 [9] POL IPR BON [20]
Plant health directive EC77/93, requirementsFully tested [9] Part tested [6, 20]
Plant material maintained asTuber [9] In-vitro [6] Tuber and in-vitro [20]
Sample statusTraditional cultivar/landrace [6] Advanced cultivar [9, 20]
Test conditionsOrganic [6]
PLANT CHARACTERISTICS
BerriesNo berries [20]
Flower colourWhite [9, 20]
Flower frequencyRare [9, 20]
Foliage coverGood [9]
Growth habitErect [20]
Light sprout colourGreen [20]
MaturityVery early [9, 20]
TUBER CHARACTERISTICS
Primary tuber flesh colourWhite [20] Cream [9]
Tuber eye depthShallow to medium [9, 20]
Tuber shapeOval [9] Oval to long [20]
Tuber skin colourWhite to yellow [9, 20]
Tuber skin textureSmooth [20]
TUBERING CHARACTERISTICS
Dormancy periodLong [9]
Resistance to external damageModerate [9]
Storage abilityGood [20]
Tuber shape uniformityMedium to uniform [9]
Yield potentialVery high [9]
UTILISATION CHARACTERISTICS
Cooking type / 411 Cooked textureFairly firm (multi-purpose type) [20]
French fry suitabilityGood [20]
Starch contentLow [9, 20]
TasteGood [9, 20]
RESISTANCE TO FUNGAL DISEASES
Field immunity to wart racesRace 1 [9]
Resistance to late blight on foliageLow [9, 20]
Resistance to late blight on tubersLow to medium [9, 20]
Resistance to stem canker (Rhizoctonia solani)Very low [9] Medium to high [20]
Wart (Synchytrium endobioticum)Field immune [9, 20]
RESISTANCE TO BACTERIAL DISEASES
Resistance to bacterial soft rot (Erwinia spp.)Medium to high [9]
Resistance to blackleg (Erwinia spp.)Medium [9] High [20]
Resistance to common scab (Streptomyces scabies)Low to medium [20] Medium [9]
RESISTANCE TO VIRUS DISEASES
Resistance to potato leaf roll virusLow to medium [9, 20]
Resistance to potato virus MLow [9, 20]
Resistance to potato virus SMedium [9]
Resistance to potato virus XMedium [20] High [9]
Resistance to potato virus Y (strain not specified)Medium to high [9, 20]
RESISTANCE TO PESTS
Resistance to Globodera rostochiensis race 1Low [9]


Source:
[6] Potato Research Institute, CZECH REPUBLIC 2005
[9] Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), GERMANY 2005
[20] Plant Breeding and Acclimatization Institute, POLAND 2011















.