The European Cultivated Potato Database

 
 

Isola

[pedigree] [parents] [similar varieties][tabulated data]
HIGHER TAXON: Solanaceae
GENUS:Solanum L.
Solanum tuberosum L. cv. Isola
Pedigree: 2285/44 x 19175 [8,18,20]
2285/44 x 19175 (adg,dms) [6,9,13]
Breeder: Günther Wriedt, Ragis Zuchtstation Heidehehof, Uel [13]
Ragis Kartoffelzucht- und Handelsgesellschaft mbH [9]
Breeder's rights: No [13]
Synonyms:
National list: 1958 [8,9,20]
ADMINISTRATION
Country of originGERMANY [6, 8, 9, 13, 18, 20]
Data sourceCZEHBROD [6] DEU001 [8] DEU416 [9] FRA179 [11] GBR165 [13] HZPC [15] IRL001 [16] NEIKER [18] POL IPR BON [20] VRI RUSSIA [23]
Plant health directive EC77/93, requirementsFully tested [15] Part tested [8, 9, 11, 20] Infected [6, 13] Untested [16]
Plant material maintained asTuber [9, 13, 15, 23, 35] In-vitro [6, 8, 11, 20] Tuber and in-vitro [18]
Sample statusAdvanced cultivar [6, 8, 9, 11, 13, 15, 16, 18, 20, 23]
Test conditionsNon organic [6, 8, 13, 15]
PLANT CHARACTERISTICS
BerriesNo berries [9]
Flower colourWhite [13]
Flower frequencyRare to occasional [9, 13]
Foliage coverModerate to good [9]
Light sprout colourBlue [13]
MaturityLate [9, 13] Early [8]
TUBER CHARACTERISTICS
Primary tuber flesh colourLight yellow [9, 13] Yellow [8]
Tuber eye depthMedium [9] Shallow to medium [8]
Tuber shapeOval [8, 9, 13]
Tuber skin colourWhite to yellow [8, 9, 13]
Tuber skin textureSmooth [9]
TUBERING CHARACTERISTICS
Dormancy periodLong [9, 13]
Growth crackingLow [9, 18]
Hollow heart tendencyLow [9, 18]
Internal rust spotInfrequent [8, 9, 18]
Resistance to external damageSusceptible to moderate [9] Resistant [13]
Resistance to internal bruisingHigh [13]
Secondary growthMedium [9, 18]
Tuber shape uniformity to medium [9]
Tuber sizeLarge [9]
Tubers per plantFew to medium [9, 18] Medium to many [13]
Yield potentialMedium [9, 18]
UTILISATION CHARACTERISTICS
After cooking blackeningLittle [18] Trace to little [9, 13]
Cooking type / 411 Cooked textureFairly firm (multi-purpose type) [9, 13]
Crisp suitabilityPoor [13] Moderate to good [18]
Dry matter contentMedium [18] Medium to high [13]
Enzymic browningTrace to little [9, 18]
French fry suitabilityPoor [13] Good [18]
Starch contentLow to medium [8, 9, 18]
TasteModerate to good [9] Good [13]
RESISTANCE TO FUNGAL DISEASES
Field immunity to wart racesRace 1 [9]
Resistance to late blight on foliageHigh [8, 9, 15, 18]
Resistance to late blight on foliage(Laboratory test)High [13]
Resistance to late blight on tubersMedium [8, 9, 18]
Resistance to late blight on tubers(Laboratory test)Medium to high [13]
Resistance to powdery scab (Spongospora subterranea)High [8] Very high [9, 15]
Resistance to stem canker (Rhizoctonia solani)High [9, 18]
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.)Medium to high [9]
Resistance to blackleg (Erwinia spp.)High [8, 9]
Resistance to common scab (Streptomyces scabies)High [9, 13, 18] High to very high [15]
RESISTANCE TO VIRUS DISEASES
Resistance to potato leaf roll virusLow to medium [8] High [9, 13, 18]
Resistance to potato virus AHigh to very high [8, 9] Very high [13]
Resistance to potato virus MMedium to high [9]
Resistance to potato virus Y (strain not specified)High to very high [8, 9] Very high [13]
Resistance to tobacco rattle virusHigh to very high [13]
RESISTANCE TO PESTS
Resistance to Globodera rostochiensis race 1Low [9]
ENVIRONMENTAL STRESS FACTORS
Drought resistanceVery high [13]


Source:
[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
[15] HZPC B.V., NETHERLANDS 2005
[18] NEIKER-Instituto Vasco de Investigación y Des, SPAIN 2005
[20] Plant Breeding and Acclimatization Institute, POLAND 2005
[23] N.I. Vavilov All-Russian Scientific Research, RUSSIAN FEDERATION 2005
[13] SASA, UNITED KINGDOM 2005
[35] Teagasc Crops Research Centre, IRELAND 2007















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