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.
Zea mays L. · Maize
Saaten-Union
Solanum tuberosum L. · Potato
MEVR. A.G. EDZES-TILMA /J. ELZINGA
Zea mays L. · Maize
SEMUNION
Pisum sativum L. · Pea
Nunhems Zaden BV (NL)
Zea mays L. · Maize
LIMAGRAIN EUROPE
Zea mays L. · Maize
Revol Benoit
Zea mays L. · Maize
Syngenta Crop Protection,CH
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
x Triticosecale Wittm. ex A. Camus · Triticale
I.G. SAATZUCHT VERWALTUNG| I.G. Saatzucht Verwaltungs GmbH
Zea mays L. · Maize
KWS SAAT SE and CO KGAA
Triticum aestivum L. · Bread wheat
LOCHOW-PETKUS
Zea mays L. · Maize
NS ratarstvo (YU)
Zea mays L. · Maize
Syngenta Crop Protection AG
Solanum tuberosum L. · Potato
Joseph le Berre
Fagopyrum esculentum Moench · Buckwheat
Malopolska Hodowla Roslin Spolka z o.o.
Hordeum vulgare L. · Barley
Boreal Plant Breeding
Pisum sativum L. · Pea
Semenarna Ljubljana, SI
Zea mays L. · Maize
MAS SEEDS
Zea mays L. · Maize
TAUCHER ROBERT
Zea mays L. · Maize
Zhoel` Meun`er
Zea mays L. · Maize
KWS SAAT SE and CO KGAA
Solanum tuberosum L. · Potato
Sativa Keřkov a.s., CZ
Zea mays L. · Maize
SAATBAU LINZ EGEN
Solanum tuberosum L. · Potato
ZIMMERMANN (DE)/INCONNU (FR)