Cultivation
Brassica napus var. napus
The distinction between rapeseed forms lies in the biological requirement of the winter type for vernalization to transition to flowering, whereas spring rapeseed completes its full development cycle in a single season without cold exposure.
In the reference 93 varieties crop Rapeseed, where this is mentioned in the description.
Winter rapeseed requires exposure to low temperatures to undergo the vernalization stage and form reproductive organs. Its vegetation period lasts 250–265 days, which facilitates the development of a vigorous root system and ensures high yield potential under mild winter conditions, as the crop's winter hardiness is limited to temperatures around -10°C.
Spring rapeseed has no requirement for a cold stimulus and is adapted to a short vegetation period of 90 to 110 days. Unlike the winter form, it is less demanding regarding warm climates and overwintering, which allows for its cultivation in more northern regions, despite its lower potential productivity.
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.
Brassica napus var. napus · Rapeseed
Serasem, FR
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus var. napus · Rapeseed
NORDDEUTSCHE| Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus var. napus · Rapeseed
Wallace A Cowling, Canola Breeders Western Australia Pty Ltd
Brassica napus var. napus · Rapeseed
PIONEER OVERSEAS CORPORATION
Brassica napus var. napus · Rapeseed
Brassica napus var. napus · Rapeseed
KWS SAAT SE&CO.KGaA, DE
Brassica napus var. napus · Rapeseed
BODIL JONSSON
Brassica napus var. napus · Rapeseed
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Brassica napus var. napus · Rapeseed
D.J. VAN DER HAVE B.V.
Brassica napus var. napus · Rapeseed
Deutsche Saatveredelung AG - DSV (DE)
Brassica napus var. napus · Rapeseed
KWS MOMONT RECHERCHE SARL, FR
Brassica napus var. napus · Rapeseed
HANS SVENSK, C/O SVALÖF WEIBULL AB
Brassica napus var. napus · Rapeseed
Heinrich Busch
Brassica napus var. napus · Rapeseed
J. Joordens Zaadhandel B.V. (NL)
Brassica napus var. napus · Rapeseed
Brassica napus var. napus · Rapeseed
Brassica napus var. napus · Rapeseed
Brassica napus var. napus · Rapeseed
Brassica napus var. napus · Rapeseed
Brassica napus var. napus · Rapeseed
R 2n (FR)
Brassica napus var. napus · Rapeseed
Asmus Soren Petersen, Jutta Kaiser,
Brassica napus var. napus · Rapeseed
Komarova Iryna Borysivna, Vynovets` Volodymyr Hryhorovych, Chekhov Anatolii Vasyl`ovych, Rozhkovan Valentyn Vasyl`ovych,
Brassica napus var. napus · Rapeseed
BUSCH| Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG / HAUSKA| Dipl. Ing. agr. Detlef Hauska