The European Cultivated Potato Database

 
 

Thomana

[pedigree] [parents] [similar varieties][tabulated data]
HIGHER TAXON: Solanaceae
GENUS:Solanum L.
Solanum tuberosum L. cv. Thomana
Pedigree: Amaryl x Bodenkraft [17,20]
Amaryl x Bodenkraft (adg) [6,9,13]
Breeder: Nordkartoffel Zuchtgesellschaft, Bahnhofstar, Ebst [13]
Nordkartoffel-Zuchtgesellschaft [9]
Breeder's rights: No [13]
Synonyms:
National list: 1977 [9,17,20]
ADMINISTRATION
Country of originGERMANY [6, 9, 13, 17, 20]
Data sourceCZEHBROD [6] DEU416 [9] FRA179 [11] GBR165 [13] KAR [17] POL IPR BON [20] VRI RUSSIA [23]
Plant health directive EC77/93, requirementsFully tested [9, 17] Part tested [11, 20] Infected [6, 13]
Plant material maintained asTuber [13, 17, 23] In-vitro [6, 9, 11, 20]
Sample statusAdvanced cultivar [6, 9, 11, 13, 17, 20, 23]
Test conditionsNon organic [6, 13, 17]
PLANT CHARACTERISTICS
BerriesVery rare [13, 17]
Flower colourRed violet [9, 13]
Flower frequencyOccasional [9, 13, 17]
Foliage coverGood [9]
Light sprout colourPink [13]
MaturityIntermediate [9, 13, 17]
TUBER CHARACTERISTICS
Primary tuber flesh colourLight yellow [9, 13, 17]
Tuber eye colourYellow [17]
Tuber eye depthMedium [9] Shallow to medium [17]
Tuber shapeOval [9, 13, 17]
Tuber skin colourWhite to yellow [9, 13, 17]
Tuber skin textureIntermediate to rough [9]
TUBERING CHARACTERISTICS
Dormancy periodLong to very long [9, 13, 17]
Growth crackingLow [9]
Hollow heart tendencyLow to medium [9]
Internal rust spotMedium [9]
Resistance to external damageModerate [9] Resistant [13, 17]
Resistance to internal bruisingMedium [13] High [17]
Secondary growthLow to medium [9] Low [17]
Tuber shape uniformityMedium to uniform [9]
Tuber sizeSmall to medium [9]
Tubers per plantMany [9] Many to very many [13, 17]
Yield potentialLow to medium [9] Medium to high [17] High [23]
UTILISATION CHARACTERISTICS
After cooking blackeningTrace [9]
Cooking type / 411 Cooked textureMealy (floury type) to fairly firm (multi-purpose type) [9]
Crisp suitabilityPoor [13]
Dry matter contentHigh to very high [17] Very high [13]
Enzymic browningLittle to some [9]
French fry suitabilityPoor [13]
Starch contentHigh [9]
RESISTANCE TO FUNGAL DISEASES
Field immunity to wart racesRace 1 [9, 17]
Resistance to late blight on foliageMedium to high [9, 17]
Resistance to late blight on foliage(Laboratory test)Medium to high [13]
Resistance to late blight on tubersMedium [9] Medium to high [17]
Resistance to late blight on tubers(Laboratory test)Medium to high [13]
Resistance to stem canker (Rhizoctonia solani)Low to medium [9]
Wart (Synchytrium endobioticum)Field immune [9]
RESISTANCE TO BACTERIAL DISEASES
Resistance to blackleg (Erwinia spp.)High [9]
Resistance to common scab (Streptomyces scabies)Medium to high [9, 13, 17]
RESISTANCE TO VIRUS DISEASES
Resistance to potato leaf roll virusHigh [13, 17] High to very high [9]
Resistance to potato virus AVery high [9, 13, 17]
Resistance to potato virus Y (strain not specified)High [9] High to very high [17] Very high [13]
Resistance to tobacco rattle virusHigh [13, 17]
RESISTANCE TO PESTS
Resistance to Globodera rostochiensis race 1High [9, 13] High to very high [17]
Resistance to Globodera rostochiensis race 5Very low to low [17]
ENVIRONMENTAL STRESS FACTORS
Drought resistanceMedium to high [13, 17]


Source:
[6] Potato Research Institute, CZECH REPUBLIC 2010
[9] Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), GERMANY 2005
[11] INRA, FRANCE 2005
[17] Kweekinstituut Karna, NETHERLANDS 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















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