Diseases
Verticillium
Verticillium wilt is a soil-borne disease caused by fungi that block plant vascular tissues, leading to gradual wilting and death. The pathogen can persist in the soil for more than 10 years.
Mentioned in descriptions 12 175 varieties reference book.
Verticillium wilt manifests through the infection of the root system and subsequent colonization of the xylem by the fungal pathogen. The first external symptoms include slow yellowing and curling of the lower leaves, which eventually wither. A diagnostic sign is the browning of the vascular ring in a cross-section of the stem, and in cases of severe infection, a fungal growth may be observed on the plant surface.
The intensity of disease development depends on temperature conditions, with the range of +21°C to +26°C considered optimal. The disease is more pronounced in light soils, during sharp fluctuations in humidity and temperature, as well as in the presence of mechanical root damage or when growing monocultures. The pathogen is a polyphage and affects a wide range of agricultural crops.
Varietal resistance to this disease is based on a genetic mechanism that restricts the penetration and movement of the fungus through the plant's vascular system. During variety testing, the efficacy of cultivars is determined using artificial inoculation methods, which assess the visual degree of symptom development and the plant's ability to maintain productivity under infectious pressure.
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.
Helianthus annuus L. · Sunflower
AGRA SEED RESEARCH INTERN
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Solanum lycopersicum L. · Tomato
SAIS SPA- Cesena (IT)
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
Solanum lycopersicum L. · Tomato
PETOSEED CO
Solanum lycopersicum L. · Tomato
SAIS SPA- Cesena (IT)
Solanum lycopersicum L. · Tomato
Hristo Georgiev
Solanum lycopersicum L. · Tomato
Bruinsma Seeds B.V.
Solanum lycopersicum L. · Tomato
Nirit Seeds Ltd (IL)
Capsicum annuum L. · Bell pepper
VELTKAMP ERIK
Solanum lycopersicum L. · Tomato
Bejo Zaden B.V.
Brassica napus var. napus · Rapeseed
KWS SAAT SE&CO.KGaA, DE
Brassica napus var. napus · Rapeseed
DEUTSCHE SAAT| Deutsche Saatveredelung AG
Solanum lycopersicum L. · Tomato
Clause Semences SA (FR)
Rhododendron L. · Azalea
Uosukainen, Marjatta
Humulus lupulus L. · Common hop
Franz Gmelch / Herbert Ehrmaier
Fragaria L. · Strawberry
Sort ie suspil`nym nadbanniam
Prunus persica (L.) Batsch · Peach
HANSEN CARL J.
Solanum lycopersicum L. · Tomato
Angelo Boni
Solanum lycopersicum L. · Tomato
Angelo Boni
Solanum tuberosum L. · Potato
MEYER WILHELM| Wilhelm Meyer in Fa. Golden Geest Kartoffel Erzeuger-gesellschaft mbH
Brassica napus var. napus · Rapeseed
LIDEA FRANCE SAS
Solanum lycopersicum L. var. lycopersicum · Tomato
Syngenta Seeds B. V.