The European Cultivated Potato Database

 
 

Alexa

[pedigree] [parents] [similar varieties][tabulated data]
HIGHER TAXON: Solanaceae
GENUS:Solanum L.
Solanum tuberosum L. cv. Alexa
Pedigree: NOS 233 74 x NOS 275 4 (adg,dms) [6,9]
Breeder: Nordostbayerischer Saatbauverband [9]
Breeder's rights:
Synonyms:
National list: 1975 [9]
ADMINISTRATION
Country of originGERMANY [6, 9]
Data sourceCZEHBROD [6] DEU416 [9] VRI RUSSIA [23]
Plant health directive EC77/93, requirementsPart tested [9] Infected [6]
Plant material maintained asTuber [9, 23] In-vitro [6]
Sample statusAdvanced cultivar [6, 9, 23]
Test conditionsNon organic [6]
PLANT CHARACTERISTICS
Flower colourRed violet [9]
Flower frequencyFrequent [9]
Foliage coverGood [9]
MaturityIntermediate [9]
Pollen fertilityModerate [23]
TUBER CHARACTERISTICS
Primary tuber flesh colourLight yellow [9]
Tuber eye depthShallow to medium [9]
Tuber shapeOval [9]
Tuber skin colourWhite to yellow [9]
Tuber skin textureSmooth [9]
TUBERING CHARACTERISTICS
Dormancy periodLong [9]
Growth crackingLow [9]
Hollow heart tendencyLow [9]
Internal rust spotInfrequent [9]
Resistance to external damageResistant [9]
Secondary growthMedium [9]
Tuber shape uniformityMedium [9]
Tuber sizeMedium to large [9]
Tubers per plantFew to medium [9]
Yield potentialMedium [9]
UTILISATION CHARACTERISTICS
After cooking blackeningTrace to little [9]
Cooking type / 411 Cooked textureFairly firm (multi-purpose type) [9]
Enzymic browningLittle [9]
Starch contentMedium to high [9]
TasteModerate [9]
RESISTANCE TO FUNGAL DISEASES
Field immunity to wart racesRace 1 [9]
Resistance to late blight on foliageMedium [23] Medium to high [9]
Resistance to late blight on tubersHigh [9, 23]
Resistance to stem canker (Rhizoctonia solani)High [9]
Wart (Synchytrium endobioticum)Field immune [9]
RESISTANCE TO BACTERIAL DISEASES
Resistance to blackleg (Erwinia spp.)High [9]
Resistance to common scab (Streptomyces scabies)Low to medium [9]
RESISTANCE TO VIRUS DISEASES
Resistance to potato leaf roll virusHigh [9]
Resistance to potato virus AHigh [9]
Resistance to potato virus MMedium to high [9]
Resistance to potato virus Y (strain not specified)High [9]
RESISTANCE TO PESTS
Resistance to Globodera rostochiensis race 1High [9]


Source:
[6] Potato Research Institute, CZECH REPUBLIC 2010
[9] Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), GERMANY 2005
[23] N.I. Vavilov All-Russian Scientific Research, RUSSIAN FEDERATION 2005















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