Diseases
Triticum aestivum L.
A fungal disease of soft wheat caused by the specialized pathogen Blumeria graminis f. sp. tritici, affecting the above-ground organs of the plant. The disease leads to a reduction in photosynthesis, the formation of shriveled grain, and empty ears.
In the reference 1 157 varieties crop Bread wheat, where this is mentioned in the description.
The causative agent of the disease is the obligate biotroph Blumeria graminis (DC.) Speer f. sp. tritici Marchal. Symptoms appear as a white, web-like coating on leaves, leaf sheaths, and stems, which eventually thickens into cotton-like patches; at the final stage, cleistothecia—black dots representing the fruiting bodies—form on the mycelium.
The harmfulness of powdery mildew lies in the destruction of chlorophyll and the retardation of tillering processes. Pathogen populations are characterized by high variability in virulence, which allows them to overcome specific varietal resistance genes denoted by the symbol Pm (Powdery mildew).
Breeding for resistance relies on the use of more than 30 Pm loci, including their allelic variants. Due to the adaptability of the fungus, breeding practices involve the "pyramiding" of several genes within a single genotype to ensure durability of resistance, with some resistance genes potentially being linked to protection genes against other pathogens.
General information about the subject — on the page Powdery mildew.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Triticum aestivum L. · Bread wheat
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Agri-Obtentions S.A.
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES S.A.S.
Triticum aestivum L. · Bread wheat
Svensson, Gunnar /Jönsson, Jan Ö.
Triticum aestivum L. · Bread wheat
Secobra Saatzucht
Triticum aestivum L. · Bread wheat
Lietuvos agrarinių ir miškų mokslų centras
Triticum aestivum L. · Bread wheat
ASUR Plant Breeding S.A.S
Triticum aestivum L. · Bread wheat
Monsanto SAS
Triticum aestivum L. · Bread wheat
APSOVSEMENTI SRL
Triticum aestivum L. · Bread wheat
Marinin Liubov Ivanivna, Lytvynenko Raisa Ivanivna, Kostiuk Stanislav Vasyl`ovych, Parfentiev Mykhailo Hryhorovych, Babaiants Lazar Tihranovych, Reshetnikova Valentyna Semenivna, Ptashenchuk Oleksandr Mykytovych, Honcharuk Nina Oleksandrivna, Lytvynenko M
Triticum aestivum L. · Bread wheat
Anne Ingver 70%, Merlin Haljak 10%, Reine Koppel 20% Centre of Estonian Rural Research and Knowledge
Triticum aestivum L. · Bread wheat
KWS MOMONT RECHERCHE SARL, FR
Triticum aestivum L. · Bread wheat
Národné Polnohospodárske a Potravinárske Centrum (NPPC)
Triticum aestivum L. · Bread wheat
ASUR Plant Breeding S.A.S
Triticum aestivum L. · Bread wheat
PZO Pflanzenzucht Oberlimpurg, DE
Triticum aestivum L. · Bread wheat
PIONEER HI-BRED INTERNATIONAL
Triticum aestivum L. · Bread wheat
KWS UK LTD
Triticum aestivum L. · Bread wheat
SEMILLAS BATLLE S.A.
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES SEMENCES
Triticum aestivum L. · Bread wheat
Verneuil Recherche SA (FR)
Triticum aestivum L. · Bread wheat
APSOVSEMENTI S.P.A.
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
Jönsson Jan Ö
Triticum aestivum L. · Bread wheat
Lietuvos agrarinių ir miškų mokslų centras
Triticum aestivum L. · Bread wheat
Lietuvos agrarinių ir miškų mokslų centras