Cultivation
Triticum aestivum L.
The classification of common wheat into winter and spring forms is determined by the state of Vrn loci, which regulate the plant's requirement for vernalization to transition to generative development.
In the reference 370 varieties crop Bread wheat, where this is mentioned in the description.
The genetic difference is due to the state of the Vrn loci: winter forms carry recessive alleles in these loci and require exposure to low positive temperatures to flower, whereas spring forms possess dominant alleles that allow them to develop without vernalization.
Biologically, the forms differ in the length of the growing season, which ranges from 200–300 days for winter wheat and 70–120 days for spring wheat. When sown in autumn, winter wheat develops a robust root system and tillers before the onset of winter, capable of withstanding frosts down to -25°C in the presence of snow cover.
Spring forms have adapted to rapidly utilize resources within a short vegetation cycle, though they are more sensitive to drought and temperature stress. In breeding, there are also 'facultative' forms that combine traits of both types, providing flexibility in sowing dates.
General information about the subject — on the page Winter and spring forms.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Triticum aestivum L. · Bread wheat
Borislav Kobiljski
Triticum aestivum L. · Bread wheat
W. von Borries-Eckendorf GmbH & Co.KG
Triticum aestivum L. · Bread wheat
Strube, D
Triticum aestivum L. · Bread wheat
Saatzucht Donau, A
Triticum aestivum L. · Bread wheat
Asur Plant Breeding SAS Pôle Végétal de la Plaine d'Estrées
Triticum aestivum L. · Bread wheat
SELGEN A.S
Triticum aestivum L. · Bread wheat
Todor K. Gubatov
Triticum aestivum L. · Bread wheat
NEW FARM CROPS
Triticum aestivum L. · Bread wheat
Semalliance Gie (FR)
Triticum aestivum L. · Bread wheat
Saatzucht Donau GmbH & Co.KG
Triticum aestivum L. · Bread wheat
Caussade semences, France
Triticum aestivum L. · Bread wheat
Secobra Saatzucht
Triticum aestivum L. · Bread wheat
Caussade Semences, F
Triticum aestivum L. · Bread wheat
Saatzucht Donau GmbH, Probstdorf AT
Triticum aestivum L. · Bread wheat
Forschungsanstalt Agroscope Changins-Wädenswil
Triticum aestivum L. · Bread wheat
KWS UK LTD
Triticum aestivum L. · Bread wheat
SAATZUCHT B. BAUER GMBH
Triticum aestivum L. · Bread wheat
Michael Winzeler
Triticum aestivum L. · Bread wheat
Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Ildikó Karsai^^^Mariann Rákszegi^^^Klára Mészáros
Triticum aestivum L. · Bread wheat
Societa Produttori Sementi S.p.A
Triticum aestivum L. · Bread wheat
Limagrain Europe S.A.S
Triticum aestivum L. · Bread wheat
Nordsaat Saatzucht GmbH Saatzucht Langenstein
Triticum aestivum L. · Bread wheat
Wiersum Plantbreeding B.V.
Triticum aestivum L. · Bread wheat
STRUBE GMBH&CO.KG