Variety traits
Starch content is an indicator of starch concentration in tubers, expressed as a percentage of their weight, which determines culinary properties, keeping quality, and suitability of potatoes for processing.
Mentioned in descriptions 4 253 varieties reference book.
Starch content represents the main energy reserve of the tuber and a key quality parameter affecting the technological properties of potatoes. With a high starch concentration, tubers boil down significantly and become mealy, which is optimal for mashed potatoes and baking, whereas low starch content allows the product to maintain its shape in salads and during frying.
This parameter is estimated as a percentage of the fresh tuber weight using physical gravimetric methods, such as specific gravity determination, or laboratory chemical analyses, including the Ewers method. In variety trials, starch content below 13% is considered low, 13% to 25% is medium, and above 25% is high.
The level of starch content is determined by the genetic potential of the variety and its maturity group, where late-maturing varieties usually accumulate more starch than early ones. This parameter is also significantly influenced by growing conditions, including moisture levels, nitrogen nutrition balance, and potassium fertilizer application, as well as temperature conditions during subsequent crop storage.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Secale cereale L. · Rye
Saatzucht LFS Edelhof (AT)
Zea mays L. · Maize
Monsanto Technology, USA
Vicia sativa L. · Common vetch
Jouffray-Drillaud SA (FR)
Solanum tuberosum L. · Potato
SAATZUCHT FIRLBECK GMBH&CO.KG
Hordeum vulgare L. · Barley
Reino Aikasalo
Solanum tuberosum L. · Potato
Sloots Aardappelkweekbedrijf B.V.
Zea mays L. · Maize
SYNGENTA FRANCE S.A.S.
Hordeum vulgare L. · Barley
Boreal Plant Breeding Ltd, FIN-31600 Jokioinen
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Solanum tuberosum L. · Potato
Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie
Solanum tuberosum L. · Potato
Johanna Anny Pruim-van Loon^^^Hubrecht Jan van Loon^^^Anthonie Elbert van Loon^^^Elbertus Marius van Loon^^^Jan Pieter van Loon^^^Johanna Wilhelmina Maatje van Loon-Kloet
Solanum tuberosum L. · Potato
C.J.J. Laan, A.S.J. Laan,
Solanum tuberosum L. · Potato
Germicopa Breeding
Solanum tuberosum L. · Potato
YaShINA IZOL'DA MAKSIMOVNA / SIMAKOV EVGENIJ ALEKSEEVICh / PISAREV BORIS ANATOL'EVICh / APShEV HUSEJN HAMIDOVICh
Solanum tuberosum L. · Potato
HESELMANS GUUS
Pisum sativum L. · Pea
Sharpes International Seeds
Solanum tuberosum L. · Potato
Heinrich Böhm
Solanum tuberosum L. · Potato
LANGE FRANK / LANGE WINFRID
Solanum tuberosum L. · Potato
Heinrich Böhm^^^SCHUCHMANN R.
Solanum tuberosum L. · Potato
IPR B.V., Helena Geeske Hoogland-Krüse
Solanum tuberosum L. · Potato
Wolfgang Walter
Solanum tuberosum L. · Potato
IPR BV
Solanum tuberosum L. · Potato
DOUGLAS HARLEY