Diseases
Pseudomonas, Xanthomonas, Pectobacterium, Ralstonia, Clavibacter, Agrobacterium, Bacillus, Streptomyces
Bacterial diseases are plant diseases caused by non-spore-forming rod-shaped bacteria, manifesting as rots, spots, and wilting. Due to diagnostic complexity and high pathogen variability, the selection of resistant varieties is the primary method for reducing yield losses.
Mentioned in descriptions 5 044 varieties reference book.
Bacterial diseases represent a group of disorders caused by pathogenic bacteria that enter plant tissues through stomata, natural openings, or mechanical injuries. External symptoms include soft and root rots, blights, wilting, and specific spotting with a yellow halo. Symptoms often mimic mineral deficiency, complicating visual diagnosis.
Pathogen development depends directly on environmental conditions, primarily the presence of free moisture and air temperatures in the range of 25–30 °C. High infection intensity can lead to significant crop losses, and in epiphytotic years, to total crop failure, making the analysis of varietal resistance a key element of agronomic strategy.
The evaluation of varietal resistance in variety trials is conducted visually based on the area of affected organs or by using an artificial inoculation background, where plants are infected with controlled strains. Resistant varieties exhibit a hypersensitive response — rapid tissue necrosis at the site of pathogen entry, which limits the spread of infection within the plant.
The efficacy of varietal protection depends on the specificity of the variety to particular races or strains of the pathogen. Agronomists are advised to account for the high genetic variability of bacteria, due to which varietal resistance may change over time, and to pay attention to verified data on resistance to local pathogen populations.
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. (Red Cabbage Group) · Red cabbage
BEJO ZADEN
Solanum lycopersicum L. · Tomato
Kim, Il Yong
Phaseolus vulgaris L. · Common bean
Syngenta Crop Protection AG
Glycine max (L.) Merr. · Soybean
SAATZUCHT DONAU GES.M.B.H. & COKG
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Cucumis melo L. · Melon
Syngenta Seeds BV (NL)
Glycine max (L.) Merr. · Soybean
ALAIN LETOURNEAU
Zea mays L. · Maize
Monsanto Vegetable IP Management B.V.
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
Zea mays L. · Maize
Rustica
Glycine max (L.) Merr. · Soybean
SLOBODYaNIK NIKOLAJ SEMENOVICh / SINEGOVSKAYa VALENTINA TIMOFEEVNA / FOMENKO NATAL'Ya DMITRIEVNA / BELYaEVA GALINA NIKOLAEVNA
Glycine max (L.) Merr. · Soybean
MURESANU EUGENREZI RALUCA
Pisum sativum L. · Pea
SEMILLAS BATLLE, S.A.
Pisum sativum L. · Pea
SEMILLAS BATLLE S.A.
Pisum sativum L. · Pea
Agri-Obtentions S.A., Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Phaseolus vulgaris L. · Common bean
Dimitar Genchev, Ivan Kiryakov
Pisum sativum L. · Pea
Lemaire-Deffontaines
Glycine max (L.) Merr. · Soybean
Rustica Prograin Genetique
Brassica oleracea L. (White Cabbage Group) · White cabbage
Masami Yamamoto
Lolium perenne L. · Perennial ryegrass
Advanta Seeds B.V. (NL)
Solanum tuberosum L. · Potato
BV VERENIGDE KWWEK
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Hristo Georgiev