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.
Prunus armeniaca L. · Apricot
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Lolium multiflorum Lam. · Italian ryegrass
DLF Seeds A/S
Glycine max (L.) Merr. · Soybean
Patrice Jeanson
Avena sativa L. · Oat
UShAKOV GENNADIJ INNOKENT'EVICh / KOMAROVA GALINA NIKOLAEVNA / KOLESNIKOVA GALINA KONDRAT'EVNA / LOSKUTOV IGOR' GRADISLAVOVICh
Glycine max (L.) Merr. · Soybean
STINE SEED Co, USA
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Glycine max (L.) Merr. · Soybean
Institut za ratarstvo i povrtarstvo, Novi Sad
Brassica napus L. · Rapeseed
Thomas Foubert
Zea mays L. · Maize
Maisadour Semences
Phaseolus vulgaris L. · Common bean
ROGERS SEEDS COMPANY (US)
Beta vulgaris Sugar Beet Group · Sugar beet
SAS FLORIMOND-DESPREZ Veuve et Fils
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Lolium multiflorum Lam. · Italian ryegrass
Kristiaan van Laecke
Solanum lycopersicum L. · Tomato
Syngenta Seeds BV (NL)
Solanum lycopersicum L. · Tomato
Asgrow (IT)
Brassica napus var. napus · Rapeseed
Sandrine LEGROS
Allium sativum L. · Garlic
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Asgrow France S.A. (FR)
Lactuca sativa L. · Lettuce
Semenarna Ljubljana, SI
Phaseolus vulgaris L. · Common bean
Bakker Brothers Seeds
Medicago sativa L. · Alfalfa
BARENBRUG HOLLAND
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
VAN DER PLOEG SJAAK
Prunus fruticosa x Prunus serrulata
Provorchenko Oleksandr volodymyrovych, Podorozhnii Volodymyr Mykolaiovych, Yer`omin Hennadii Viktorovych,
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.