Delfts Blue Riding Hood
ActivePenstemon Schmidel. · Beard Tongue
Lubbe Remy
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.
Penstemon Schmidel. · Beard Tongue
Lubbe Remy
Polianthes L.
Kuang-Liang Huang
Phlox paniculata L. · Garden phlox
Tonies Hubertus Josephus|Noordwijkerhout, NL
Anigozanthos Labill. · Kangaroo Paw
Florigene Pty Ltd.
Agapanthus L'Hér. · Lily of the Nile
Vance James Hooper, Vance James Hooper
Heuchera L. · Coral Flower
Janet N. Egger
Lactuca sativa L. · Lettuce
VILMORIN-MIKADO USA
Ceanothus L. · Ceanothus
WILSON WARWICK^^^WILSON KAREN
Helleborus niger L. · Christmas rose
Josef Heuger
Penstemon Schmidel. · Beard Tongue
Lubbe Remy
Anemone hupehensis Lemoine · Japanese anemone
Yoshihiro Kanazawa
Athyrium niponicum (Mett.) Hance · Japanese painted fern
TERRA NOVA NURSERIES INC
Hosta Tratt. · Hosta
van den Top Hendrik Jan
Leucanthemum x superbum (Bergmans ex J. W. Ingram) D. H. Kent · Shasta daisy
Hansen Hans A
Helianthus annuus L. · Sunflower
MAS Seeds,FR
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Helianthus annuus L. · Sunflower
RAGT 2n, FR
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Brassica napus L. · Rapeseed
Andersson, Gösta
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
( Internationa Genetic Seeds)I.G.S. S.r.L. Corso Isonzo n.9 - 00198, Róma, IT
Solanum lycopersicum L. · Tomato
FERRY MORSE