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Diseases

Powdery mildew of wheat

Triticum aestivum L. subsp. aestivum

A fungal disease of common wheat caused by the obligate biotroph Blumeria graminis f. sp. tritici, which infects exclusively this cereal species and is characterized by high genetic variability.

In the reference 23 varieties crop Bread wheat, where this is mentioned in the description.

The causative agent of the disease is a specialized form of the ascomycete Blumeria graminis f. sp. tritici, which is characterized by narrow specialization and does not infect other cereal species. The pathogen population is represented by numerous physiological races capable of overcoming the host plant's genetic defenses, which requires constant monitoring of virulence.

Symptoms appear on all above-ground organs as a white, web-like coating, which eventually densifies into cotton-like tufts and is covered with black dots—cleistothecia—in the final stages. The harmfulness of the infection lies in the reduction of photosynthesis, disruption of tillering, and deterioration of grain quality.

The resistance of common wheat to the pathogen is controlled by specific Pm series genes (from Pm1 to Pm50 and their alleles), which are used in breeding to develop protected varieties. The effectiveness of these genes is unstable and depends on the local composition of fungal races capable of rapidly adapting to the plant's defense systems.

General information about the subject — on the page Powdery mildew.

Sources8

Varieties of Bread wheat mentioned in the description

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.

Ludwig

Active

Triticum aestivum L. subsp. aestivum · Bread wheat

Probstdorfer Saatzucht Ges.m.b.H & Co KG

AT CZ DE
4 records

Triticum aestivum L. subsp. aestivum · Bread wheat

Secobra Saatzucht

AT CZ DE
3 records

Siegfried

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

W. von Borries-Eckendorf GmbH & Co.KG

AT CZ DE
3 records

Thalamus

Active

Triticum aestivum L. subsp. aestivum · Bread wheat

DEUTSCHE SAATVEREDELUNG AG

AT DE
2 records

Forum

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

NORDSAAT Agrargesellschaft mit beschraenkter Haftung

DE
2 records

Cortez

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

MESKEN| Ir. Mannes Mesken

DE
2 records

Triticum aestivum L. subsp. aestivum · Bread wheat

Kärntner Saatbau e.Gen.

AT
1 record

Triticum aestivum L. subsp. aestivum · Bread wheat

Kärntner Saatbau e.Gen.

AT
1 record

Tizio

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

RAGT2n Herrn Hilmar Cöster

DE
2 records

Capo

Active

Triticum aestivum L. subsp. aestivum · Bread wheat

Fritz Mauthner HandelsgesellschaftmbH & Co KG

AT
1 record

Lukull

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

HADMERSLEBEN| Syngenta Hadmersleben GmbH

DE
1 record

Tuerkis

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

SEMUNDO| SW Seed GmbH

DE
1 record

Troll

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

LUNDIN| Dr. Per Lundin c/o W. Weibull AB / JOENSSON JAN| Jan Oe Joensson c/o W. Weibull AB / SVENSSON| Gunnar Svensson c/o W. Weibull AB

DE
2 records

Aktion

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

R2n S.A.S. (Societe RAGT 2N)

DE
1 record

Ronos

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

STRASS| Dr. Friedrich Strass in Bayerische Landesanstalt fuer Bodenkultur / ZIMMERMANN IN| Dr. G. Zimmermann in Bayerische Landesanstalt fuer

DE
2 records

Arabela

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

Selgen a.s., CZ

CZ
2 records

Alonso

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

BORRIES| W. von Borries-Eckendorf GmbH & Co. Kommanditgesellschaft

DE
1 record

Solitaer

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

SAATZUCHT SCHWEIGER GBR

DE
1 record

Taifun

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

Lochow-Petkus GmbH Herrn Dr. Klaus Brunckhorst

DE
2 records

Juliana

Application submitted

Triticum aestivum L. subsp. aestivum · Bread wheat

CZ
1 record

Torridon

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

CZ
1 record

KWS Plenum

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

DE
1 record

Kermit

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

DE
1 record