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Diseases

Powdery Mildew of Soft Wheat

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.

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.

Raffles

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

IE
7 records

Heerup

Active

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK
5 records

Triticum aestivum L. · Bread wheat

Reiner Bothe^^^Nina Pfeiffer

LT
8 records

Lavantus

Active

Triticum aestivum L. · Bread wheat

Strube Research GmbH&Co KG

EE PL
5 records

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

NL PL
5 records

Cindy

Active

Triticum aestivum L. · Bread wheat

Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.

UA
7 records

Findus

Active

Triticum aestivum L. · Bread wheat

KWS Lochow

DK LT
5 records

Adler

Terminated

Triticum aestivum L. · Bread wheat

NORDSAAT SAATZUCHT

EE LT
5 records

Adriatic

Active

Triticum aestivum L. · Bread wheat

LEMAIRE DEFFONTAINES S.A.S.

FR
5 records

Kaltop

Terminated

Triticum aestivum L. · Bread wheat

SCA ADRIEN MOMONT & FILS

FR LT
5 records

Torch

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK
6 records

Numeric

Active

Triticum aestivum L. · Bread wheat

LEMAIRE DEFFONTAINES SEMENCES

FR IT
4 records

Talsis

Active

Triticum aestivum L. · Bread wheat

APP Agroresursu un ekonomikas institūts

EE LV
6 records

Intro

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK FR
6 records

Triticum aestivum L. · Bread wheat

Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^László Szunics^^^Ildikó Karsai^^^Mariann Rákszegi^^^Klára Mészáros^^^Szücs Péter^^^Szunics Lászlóné

HU
6 records

Akzent

Active

Triticum aestivum L. · Bread wheat

SAATZUCHT JOSEF BREUN GmbH&Co.KG

FR
5 records

Crusoe

Active

Triticum aestivum L. · Bread wheat

Nickerson International Research S.N.C.

NL
6 records

Trapez

Terminated

Triticum aestivum L. · Bread wheat

Saatzucht Josef Breun GdbR (DE)

FR
5 records

Triticum aestivum L. · Bread wheat

Centrum výskumu rastlinnej výroby (CVRV) Pieštany

SK
5 records

Elektra

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

LT PL
7 records

Domino

Protection expired

Triticum aestivum L. · Bread wheat

Svalof Weibull AB

FR
6 records

Triticum aestivum L. · Bread wheat

Wiersum Plantbreeding B.V.

BE NL
7 records

Timmo

Terminated

Triticum aestivum L. · Bread wheat

Svensson, Gunnar/Lundin, Per

DK FR SE
7 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
5 records

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