Ontario

Higher Taxon Solanaceae
Genus Solanum L.
Species Solanum tuberosum L. cv. Ontario
Breeder 5
Breeder Agent
administration
Data sourceDEU001
DEU416
GBR165
IRL001
POL IPR BON
VRI RUSSIA
Plant material maintained asTuber
In-vitro
Plant health directive EC77/93, requirementsPart tested
Infected
Untested
Country of originUNITED STATES
Sample statusAdvanced cultivar
Test conditionsNon organic
plant characteristics
MaturityIntermediate to late
Intermediate
Foliage coverGood
Flower colourWhite
Flower frequencyOccasional to frequent
BerriesRare
Pollen fertilityHigh
Light sprout colourPink
tuber characteristics
Tuber skin colourWhite to yellow
Primary tuber flesh colourWhite
Tuber shapeOval to round
Oval
Tuber eye depthShallow
Tuber skin textureVery smooth
tubering characteristics
Yield potentialMedium
High
Tuber shape uniformityMedium to uniform
utilisation characteristics
TasteGood
Starch contentLow
Medium
resistance to fungal diseases
Resistance to late blight on tubersMedium to high
High
Resistance to late blight on foliageMedium
Medium to high
Resistance to early blight (Alternaria solani)High
Resistance to powdery scab (Spongospora subterranea)High
Wart (Synchytrium endobioticum)Field immune
Field immunity to wart racesRace 1
resistance to bacterial diseases
Resistance to common scab (Streptomyces scabies)High
resistance to virus diseases
Resistance to potato virus XLow
Resistance to potato leaf roll virusLow to medium
resistance to pests
Resistance to Globodera rostochiensis race 1Low
environmental stress factors
Frost resistanceLow
Variety information last modified on 24th of July, 2005