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
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
Ragt, F
Triticum aestivum L. · Bread wheat
NS ratarstvo (YU)
Triticum aestivum L. · Bread wheat
CO.NA.SE soc Coop.Agr. (IT)/Apsov sementi S.p.A. (IT)
Triticum aestivum L. · Bread wheat
Lonnet Philippe
Triticum aestivum L. · Bread wheat
Strube Research GmbH&Co KG
Triticum aestivum L. · Bread wheat
Poljoprivredni fakultet (YU)
Triticum aestivum L. · Bread wheat
Przemyslaw Matysik
Triticum aestivum L. · Bread wheat
RAGT 2n
Triticum aestivum L. · Bread wheat
Secobra Recherches, F
Triticum aestivum L. · Bread wheat
Mikic Sanja, Jevtic Radivoje, Momcilovic Vojislava, Mirosavljevic Milan,
Triticum aestivum L. · Bread wheat
Institut za ratarstvo i povrtarstvo, Novi Sad
Triticum aestivum L. · Bread wheat
TADEUSZ DRZAZGA / JAN NJRBA KOBIERZYCE
Triticum aestivum L. · Bread wheat
Saatzucht Lochow-Petkus (DE)
Triticum aestivum L. · Bread wheat
Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Ildikó Karsai^^^Mariann Rákszegi^^^Klára Mészáros
Triticum aestivum L. · Bread wheat
Zhelevs`ka Lidiia Volodymyrivna, Chaika Anatolii Mykolaiovych, Dubova Oksana Anatoliivna, Burdeniuk-Tarasevych Larysa Antonivna,
Triticum aestivum L. · Bread wheat
Limagrain UK
Triticum aestivum L. · Bread wheat
LOCHOW - PETKUS F., G.M.B.H.
Triticum aestivum L. · Bread wheat
RAGT 2n
Triticum aestivum L. · Bread wheat
Saaten Union Recherche (FR)
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
LIDEA FRANCE SAS
Triticum aestivum L. · Bread wheat
LIMAGRAIN EUROPE
Triticum aestivum L. · Bread wheat
Limagrain Europe S.A.S