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
Plant Breeding International Cambridge Ltd (GB)
Triticum aestivum L. · Bread wheat
Sejet Planteforaedling I,S
Triticum aestivum L. · Bread wheat
Lemaire-Deffontaines
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES S.A.S.
Triticum aestivum L. · Bread wheat
Biogranum, Novi Sad
Triticum aestivum L. · Bread wheat
Lantmannen SW Seed AB, SE-268 81 Svalof
Triticum aestivum L. · Bread wheat
Michael Winzeler
Triticum aestivum L. · Bread wheat
Bedoe Zoltan / Lang Laszlo / Szunics Laszlo / Veisz Otto / Vida Gyula / Karsai Ildiko / Szuecs Peter / Szunics Laszlone / Juhasz Angela
Triticum aestivum L. · Bread wheat
SARL ADRIEN MOMONT ET FILS, FR
Triticum aestivum L. · Bread wheat
Institute of field and vegetable crops - Novi Sad (SR)
Triticum aestivum L. · Bread wheat
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Triticum aestivum L. · Bread wheat
SARH-INIA
Triticum aestivum L. · Bread wheat
FLORIMOND DESPREZ VEUVE ET FILS
Triticum aestivum L. · Bread wheat
Triticum aestivum L. · Bread wheat
Triticum aestivum L. · Bread wheat
Triticum aestivum L. · Bread wheat
DEUTSCHE SAATVEREDELUNG AG
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
Triticum aestivum L. · Bread wheat
SZB Polska Sp.z o.o. Sp.j.
Triticum aestivum L. · Bread wheat
Saatzucht Josef Breun GmbH & Co.KG (DE)
Triticum aestivum L. · Bread wheat
NICKERSON INTERNATIONAL RESEARCH SNC
Triticum aestivum L. · Bread wheat
PLANT BREEDING INTERNATIONAL CAMBRIDGE
Triticum aestivum L. · Bread wheat
NS ratarstvo (YU)
Triticum aestivum L. · Bread wheat
Pestitsid EOOD