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
SELGEN, a.s. (CZ)/Vyzkumne centrum SELTON, s.r.o.
Triticum aestivum L. · Bread wheat
Saatzucht Donau Ges.m.b.H.& Co KG
Triticum aestivum L. · Bread wheat
I. Panayotov, G. Petrov, I. Todorov, P. Petkova, D. Boyadzhieva, A. Dimov, P. Stankova, V. Vasilev, P. Stoycheva
Triticum aestivum L. · Bread wheat
Biogranum d.o.o. (RS)
Triticum aestivum L. · Bread wheat
Otto Streng^^^Herbert Geißendörfer
Triticum aestivum L. · Bread wheat
Bedoe Zoltan / Lang Laszlo / Balla Zoltan / Szunics Laszlo / Karsai Ildiko / Szunics Laszlone / Veisz Otto / Vida Gyula
Triticum aestivum L. · Bread wheat
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
Strube Research GmbH&Co KG
Triticum aestivum L. · Bread wheat
Pernilla Vallenback
Triticum aestivum L. · Bread wheat
Jönsson Jan Ö
Triticum aestivum L. · Bread wheat
Ginka Rachovska, Antoaneta Argirova
Triticum aestivum L. · Bread wheat
Balla Laszlo / Bedoe Zoltan / Lang Laszlo / Szunics Laszlo / Karsai Ildiko / Szunics Laszlone / Vida Gyula
Triticum aestivum L. · Bread wheat
Limagrain Europe S.A.S
Triticum aestivum L. · Bread wheat
SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUITTU MARIANAGIURA AUREL
Triticum aestivum L. · Bread wheat
ABED FONDEN
Triticum aestivum L. · Bread wheat
Cultivari Getreidezüchtungsforschung Darzau gGmbH
Triticum aestivum L. · Bread wheat
SELGEN A.S
Triticum aestivum L. · Bread wheat
Agri-Obtentions S.A., Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Triticum aestivum L. · Bread wheat
KWS MOMONT RECHERCHE SARL, FR
Triticum aestivum L. · Bread wheat
Dr.Galina Mihova
Triticum aestivum L. · Bread wheat
Wiersum Plantbreeding B.V. (NL)
Triticum aestivum L. · Bread wheat
APSOVSEMENTI S.P.A.
Triticum aestivum L. · Bread wheat
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
CO.NA.SE SOC.COOP.AGR