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Variety traits

Winter hardiness of winter rapeseed

Brassica napus var. napus

The complex ability of winter rapeseed to withstand adverse overwintering conditions, including frosts, thaws, and temperature fluctuations. It determines crop survival and the necessity for spring reseeding.

In the reference 81 varieties crop Rapeseed, where this is mentioned in the description.

To assess the winter hardiness of rapeseed, a visual inspection of the root system is conducted; a healthy root should remain white without brown spots. In field conditions, a critical plant density threshold is considered to be 10 plants per square meter, below which crops must be reseeded, while the optimal density is 25–50 plants per square meter.

Rapeseed is capable of withstanding frosts down to –15…–20 °C without snow cover and down to –30…–35 °C with it. The optimal state for overwintering is considered to be a plant in the rosette phase with 6–8 leaves, a root collar diameter of 8–10 mm, and a growing point located at or below the soil surface.

The risk of crop failure increases when plants become overgrown, as the growing point is elevated above the soil surface, making them vulnerable to temperatures below –8…–10 °C. To increase resistance, hardening at temperatures near freezing is necessary, which promotes the accumulation of soluble substances in the cells.

General information about the subject — on the page Winter hardiness.

Sources8

Varieties of Rapeseed mentioned in the description

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.

Arkansas

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

CZ DE DK FR PL UA
15 records

Anniston

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

CZ FR PL UA
13 records

Visby

Active

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

DE HR PL UA
15 records

Trezzor

Active

Brassica napus var. napus · Rapeseed

Ragt, F

CZ DK FR PL
10 records

SY Iowa

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations AG

DE DK PL UA
11 records

SY Florian

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations AG

DE DK PL UA
11 records

NK Technic

Active

Brassica napus var. napus · Rapeseed

Syngenta Crop Protection AG, Seeds Division, CH

DE DK HR PL
12 records

Nelson

Active

Brassica napus var. napus · Rapeseed

SYNGENTA SEEDS| Syngenta Seeds GmbH

DE PL SE UA
9 records

KWS Granos

Active

Brassica napus var. napus · Rapeseed

KWS, D

CZ FR PL UA
14 records

Kicker

Active

Brassica napus var. napus · Rapeseed

Norddeutsche, D

CZ DE PL
11 records

Gordon KWS

Active

Brassica napus var. napus · Rapeseed

KWS, D

CZ FR UA
12 records

DK Exception

Active

Brassica napus var. napus · Rapeseed

Nelly Guguin

CZ DK FR UA
14 records

Clarus

Active

Brassica napus var. napus · Rapeseed

DSV, D

CZ DE PL
9 records

Anderson

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

DK FR PL UA
11 records

Alicante

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

CZ FR PL UA
11 records

Vectra

Active

Brassica napus var. napus · Rapeseed

RAPS| RAPS GbR Saatzucht Lundsgaard

CZ DE HR PL
10 records

Tempo

Active

Brassica napus var. napus · Rapeseed

Serasem, FR

DE DK FR PL
11 records

SY Floretta

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations,CH

CZ PL UA
8 records

SY Alibaba

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations AG

CZ DE DK FR PL
8 records

Parcours

Active

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

DE DK PL
9 records

Oriolus

Active

Brassica napus var. napus · Rapeseed

Deutsche Saatveredelung, D

CZ PL UA
8 records

Libravo

Active

Brassica napus var. napus · Rapeseed

DEUTSCHE SAATVEREDELUNG AG

CZ DE DK ES PL
9 records

LG Adeline

Active

Brassica napus var. napus · Rapeseed

Syngenta Crop Protection AG

CZ DK FR PL UA
10 records

LG Adamant

Active

Brassica napus var. napus · Rapeseed

LIMAGRAIN EUROPE

CZ DK FR PL UA
10 records