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Varieties with a similar appearance
Koretta
| Characters compared | Value |
| Maturity: | Intermediate |
| Growth habit: | Semi erect to erect |
| Foliage cover: | Good |
| Flower colour: | White |
| Flower frequency: | Occasional to frequent |
| Pollen fertility: | Moderate |
| Light sprout colour: | Green |
| Tuber skin colour: | White to yellow |
| Primary tuber flesh colour: | Light yellow |
| Tuber shape: | Oval to round |
| Tuber eye depth: | Shallow |
| Tuber skin texture: | Intermediate |
| Variety | Characters matched | Sources |
| Koretta | 12/12 | 2 |
| Sanetta | 10/12 | 2 |
| Flava | 9/12 | 3 |
| Gilda | 9/12 | 1 |
| Karmona | 9/12 | 1 |
| Monalisa | 8/12 | 8 |
| Escort | 8/12 | 7 |
| Cara | 8/12 | 6 |
| Russet Burbank | 8/12 | 5 |
| Sirco | 8/12 | 5 |
| Adretta | 8/12 | 4 |
| Producent | 8/12 | 4 |
| Record | 8/12 | 4 |
| Mila | 8/12 | 3 |
| Aranyalma | 8/12 | 3 |
| Libana | 8/12 | 3 |
| Marfona | 8/12 | 3 |
| Axilia | 8/12 | 2 |
| Atlanta (1950) | 8/12 | 2 |
| Beli | 8/12 | 2 |
| Rajka | 8/12 | 2 |
| Karolin | 8/12 | 2 |
| Cicero | 8/12 | 2 |
| Kiva | 8/12 | 2 |
| Alamo | 8/12 | 2 |
| Turbella | 8/12 | 1 |
| Sola | 8/12 | 1 |
| Suevia | 8/12 | 1 |
| Desiree | 7/12 | 8 |
| Kennebec | 7/12 | 6 |
| Obelix | 7/12 | 6 |
| Hermes | 7/12 | 6 |
| Primura | 7/12 | 6 |
| Ostara | 7/12 | 5 |
| Mariana | 7/12 | 4 |
| Van Gogh | 7/12 | 4 |
| Sante | 7/12 | 4 |
| Aula | 7/12 | 4 |
| Mirka | 7/12 | 4 |
| Blanka | 7/12 | 4 |
| Estima | 7/12 | 4 |
| Ditta | 7/12 | 4 |
| Mondial | 7/12 | 4 |
| Aquila | 7/12 | 4 |
| Remarka | 7/12 | 4 |
| Colina | 7/12 | 3 |
| Prima | 7/12 | 3 |
| Linzer Starke | 7/12 | 3 |
| Arkula | 7/12 | 3 |
| Otava | 7/12 | 3 |
| Gigant | 7/12 | 3 |
| Octavia | 7/12 | 3 |
| Hera | 7/12 | 3 |
| Kvetuse | 7/12 | 3 |
| Eba | 7/12 | 3 |
| Advira | 7/12 | 3 |
| Anosta | 7/12 | 3 |
| Rika | 7/12 | 3 |
| Ausonia | 7/12 | 3 |
| Grata | 7/12 | 3 |
| Bzura | 7/12 | 3 |
| Donald | 7/12 | 3 |
| Wilja | 7/12 | 3 |
| Carla | 7/12 | 3 |
| Doon Pearl | 7/12 | 3 |
| Atleet | 7/12 | 3 |
| Pentland Ivory | 7/12 | 3 |
| Ontario | 7/12 | 3 |
| Timate | 7/12 | 3 |
| Vivaldi | 7/12 | 3 |
| Revelino | 7/12 | 3 |
| Romina | 7/12 | 2 |
| Veto | 7/12 | 2 |
| Pola | 7/12 | 2 |
| Jagna | 7/12 | 2 |
| Gusto | 7/12 | 2 |
| Kedvenc | 7/12 | 2 |
| Sitta | 7/12 | 2 |
| Provento | 7/12 | 2 |
| Margit (1935) | 7/12 | 2 |
| Laimdota | 7/12 | 2 |
| Aristo | 7/12 | 2 |
| Mindenes | 7/12 | 2 |
| Arina | 7/12 | 2 |
| Ilse | 7/12 | 2 |
| Lipa | 7/12 | 2 |
| Jizera | 7/12 | 2 |
| Salut | 7/12 | 2 |
| Terrina | 7/12 | 2 |
| Ronda (1974) | 7/12 | 2 |
| Epoka | 7/12 | 2 |
| Koto | 7/12 | 2 |
| Pavo | 7/12 | 2 |
| Glasgow Favourite | 7/12 | 2 |
| Flora (1939) | 7/12 | 2 |
| Wisla | 7/12 | 2 |
| Puntila | 7/12 | 2 |
| Bliza | 7/12 | 2 |
| Epron | 7/12 | 2 |
| Yesmina | 7/12 | 2 |
| Thola | 7/12 | 2 |
| Juligelb | 7/12 | 2 |
| Ruta | 7/12 | 2 |
| Ina | 7/12 | 2 |
| Perla | 7/12 | 2 |
| Frezja | 7/12 | 2 |
| Rosva | 7/12 | 2 |
| Hankkijan Tuomas | 7/12 | 2 |
| Sunbeam | 7/12 | 1 |
| Erntedank | 7/12 | 1 |
| Likaria | 7/12 | 1 |
| Freia | 7/12 | 1 |
| Regiment | 7/12 | 1 |
| Firmula | 7/12 | 1 |
| Edelgard | 7/12 | 1 |
| Toni | 7/12 | 1 |
| Kalitinec | 7/12 | 1 |
| Jarabina | 7/12 | 1 |
| Pana | 7/12 | 1 |
| Stieglitz | 7/12 | 1 |
| Ottena | 7/12 | 1 |
| Dijkhuis 53 153 | 7/12 | 1 |
| Planet | 7/12 | 1 |
| Latona | 7/12 | 1 |
| Lipsi | 7/12 | 1 |
| Hyva | 7/12 | 1 |
| Rema | 7/12 | 1 |
| Arvor | 7/12 | 1 |
| Moira | 7/12 | 1 |
| Werta | 7/12 | 1 |
| Seresta | 7/12 | 1 |
