Diseases

Clubroot

Plasmodiophora brassicae

Clubroot is a dangerous fungal disease affecting the root system of cruciferous plants. It manifests in the formation of galls and tumors on the roots, leading to stunted growth, wilting, and significant crop losses.

Mentioned in descriptions 577 varieties reference book.

The disease affects the root system of plants in the Brassicaceae family, causing the formation of characteristic swellings and galls of various sizes. As a result of the impaired absorption function of the roots, the aerial part of the plant lags in growth, leaves turn yellow, and the plants lose turgor and wilt during hot weather, often leading to a lack of heads or the formation of small and loose specimens.

The active development of the pathogen depends on environmental conditions, among which high soil moisture, moderately warm temperatures in the range of 18–25°C, and a slightly acidic pH level are critically important. The pathogen can remain viable in the soil as spores for up to 20 years, utilizing both cultivated plants and weeds as infection reservoirs.

Resistance of varieties is provided by genetic mechanisms that restrict the development of the pathogen in the roots, which allows for harvesting on infested sites. The assessment of resistance in variety trials is carried out through the creation of an artificial infection background, molecular tagging of resistance genes, and analysis of the combining ability of hybrid forms, although protection efficiency may vary depending on the presence of rare physiological races of the pathogen in a specific region.

Sources10

Breakdown by crop

Clubroot of Oilseed Rape 57 Clubroot of crucifers — White cabbage 41 Clubroot of Chinese Cabbage 32 Clubroot of crucifers — cauliflower 25 Clubroot of rapeseed 17 Clubroot of turnip 16 Clubroot of crucifers — broccoli 11 Clubroot of kale 9 Clubroot of Savoy Cabbage 8 Clubroot of rutabaga 8 Clubroot of rapeseed 6 Clubroot of Crucifers — Oilseed Radish 6 Clubroot of crucifers — Brussels sprouts 4 Clubroot of crucifers — white mustard 4 Clubroot of crucifers — Chinese cabbage 3

Found in these crops

Rapeseed 72 White cabbage 46 Napa cabbage 40 Cauliflower 29 Rapeseed 20 Turnip 17 Broccoli 12 Rutabaga 9 Savoy cabbage 9 Kale 9 Field mustard 8 Oil radish 7

Varieties that feature this in their description

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.

Undercover

Active

Brassica carinata A. Braun · Ethiopian mustard

Ing. Piet Lammers

1 record

Toskama

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

MARNER GZG| Rijk Zwaan Marne Aktiengesellschaft

1 record

Suprin F1

Terminated

Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage

Sylvain Bontems

1 record

Slavanova

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

Eike Kampe, Hryhorii Pylypenko,

2 records

ROSKILDE S 65 - MAJTURNIPS

Terminated

Brassica rapa L. var. rapa (L.) Thell. · Turnip

FDB, ALBERTSLUND & DLF, ROSKILDE

1 record

Questar F1

Active

Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage

Siegfried Lachmann

1 record

Quisor F1

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

Zoltan Gazsi

1 record

Orient Star

Active

Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage

Junichi Chiba

2 records

Nanna

Active

Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage

Lim Chanju

4 records

Mostar

Terminated

Brassica oleracea L. (Cabbage Group) · Cabbage

May Agro Seed Corp.(TR)

1 record

Markola

Terminated

Brassica oleracea L. (Marrowstem Kale Group) · Marrow-stem kale

Dr. Heinrich Enderlein

2 records

Makler

Active

Brassica napus var. napus · Rapeseed

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

1 record

LID Croco

Active

Brassica napus var. napus · Rapeseed

LIDEA FRANCE SAS

1 record

Lergo

Terminated

Brassica napus L. · Rapeseed

Hagberg, Arne

1 record

KILASRTESS

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

Twan Groot

1 record

Kilagreg F1

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

SJAAK VAN DER PLOEG

1 record

KAVA

Protection expired

Brassica rapa L. var. rapa (L.) Thell. · Turnip

L. DÆHNFELDT A/S

1 record

Kilaherb F1

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

Sjaak van de Ploeg

2 records

Emiko F1

Active

Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage

Ger Beemsterboer

1 record

Emblem

Terminated

Brassica napus var. napus · Rapeseed

Zhan - Pierre Diufork

1 record

DLE23838S25

Active

Brassica napus var. napus · Rapeseed

Gunhild Leckband Dieter Stelling

2 records

Delikat

Active

Brassica napus L. var. napobrassica (L.) Rchb. · Rutabaga

P.H. Petersen Saatzucht Lundsgaard GmbH Herrn Asmus Sören Petersen

1 record

CS54

Terminated

Brassica napus var. napus · Rapeseed

Jean-Pserre Despeghel

2 records

Clapton

Terminated

Brassica napus L. · Rapeseed

Lantmaennen ek foer

1 record

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.