Diseases
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.
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.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Saatzucht Quedlinburg-DE
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds B.V.
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht DE
Brassica oleracea L. (White Cabbage Group) · White cabbage
SYNGENTA SEEDS B.V.
Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts
Syngenta Seeds B.V.
Brassica rapa L. var. rapa (L.) Thell. · Turnip
Takii & Co. Ltd., Kyoto 600-91
Brassica napus var. napus · Rapeseed
JONSSON BODIL
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
BEJO ZADEN
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
Syngenta Crop Protection AG
Brassica napus var. napus · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
TAKII EUROPE B V
Brassica napus var. napus · Rapeseed
PIONEER OVERSEAS CORPORATION
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts
Syngenta UK Ltd
Brassica oleracea L. (White Cabbage Group) · White cabbage
STARTSEV VIKTOR IVANOVICh / BONDAREVA LYuDMILA LEONIDOVNA / KRAVChENKO SVETLANA NIKOLAEVNA / SAMOHVALOV ALEKSANDR NIKOLAEVICh / OOO 'EVRO-SEMENA'
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
TAKII JAPAN and CO. 180 UMEKOJI
Brassica oleracea L. (Broccoli Group) · Broccoli
Syngenta Seeds B.V.
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
BEJO ZADEN
Brassica oleracea L. (Broccoli Group) · Broccoli
Syngenta Crop Protection AG
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Crop Protection AG
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Crop Protection AG
Brassica oleracea L. (White Cabbage Group) · White cabbage
VAN DER PLOEG SJAAK
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
SYNGENTA SEEDS B.V.