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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.

Cubus

Active

Triticum aestivum L. · Bread wheat

Rainer Bouze

EE LT LV PL UA
15 records

Colonia

Active

Triticum aestivum L. · Bread wheat

NICKERSON INTERNATIONAL RESEARCH SNC

BE HU LT LU PL
12 records

Calixo

Active

Triticum aestivum L. · Bread wheat

Secobra Saatzucht

EE FI LT LV
14 records

Baletka

Active

Triticum aestivum L. · Bread wheat

Ragt, F

HU PL UA
11 records

Alcantara

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, F

BG FR HU RO
12 records

Akvitan

Active

Triticum aestivum L. · Bread wheat

Landwirtschaftliche Lehranstalten Triesdorf

EE LT PL UA
14 records

Wpb Mylo

Active

Triticum aestivum L. · Bread wheat

Wiersum Plantbreeding B.V.

EE LT NL PL
10 records

WPB Lambada

Active

Triticum aestivum L. · Bread wheat

WIERSUM PLANTBREEDING

EE LT PL SE
9 records

Turanus

Active

Triticum aestivum L. · Bread wheat

SAATZUCHT DONAU GESMBH & CO KG

FI LT UA
12 records

Tulsa

Active

Triticum aestivum L. · Bread wheat

WIERSUM PLANTBREEDING B.V.

AT BE DK NL SE
12 records

Tigre

Active

Triticum aestivum L. · Bread wheat

Institut National de la Recherche Agronomique-INRA (FR)

ES HR PT
8 records

Tervel

Active

Triticum aestivum L. · Bread wheat

Todor K. Gubatov

BG ES HR HU RO
10 records

SY Alteo

Active

Triticum aestivum L. · Bread wheat

Syngenta Seeds, F

FR HR IT
10 records

SW Kadrilj

Active

Triticum aestivum L. · Bread wheat

Lantmännen SW Seed

EE LT LV SE
17 records

SU Willem

Active

Triticum aestivum L. · Bread wheat

W. von Borries-Eckendorf GmbH & Co.KG

FI LT PL UA
11 records

SU Vermillon

Active

Triticum aestivum L. · Bread wheat

Saaten Union Recherche (FR)

FR IT UA
11 records

Solveig

Active

Triticum aestivum L. · Bread wheat

Caussade Semences, F

FR IT
11 records

Solehio

Active

Triticum aestivum L. · Bread wheat

Sarl Adrien Momont et Fils, F

FR HR IT
11 records

RGT Kreuzer

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK NL PL SE UA
11 records

RGT Kilimanjaro

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FI FR LT PL
11 records

RGT Borsalino

Active

Triticum aestivum L. · Bread wheat

RAGT 2n

ES FR IT
11 records

Praktik

Active

Triticum aestivum L. · Bread wheat

RAGT R2n sas, FR-12033 Rodez Cedex 9

PL SE UA
11 records

Pontiform

Active

Triticum aestivum L. · Bread wheat

Strube Research GmbH & Co. KG, STRUBE D and S GMBH

EE LT PL UA
9 records

Orvantis

Protection expired

Triticum aestivum L. · Bread wheat

NEW FARM CROPS

AT FR HR HU SI
11 records

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