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Diseases

Powdery Mildew of Barley

Hordeum vulgare L.

A fungal disease of barley caused by the obligate biotroph Blumeria graminis f. sp. hordei, which manifests as a white coating on the above-ground organs of the plant.

In the reference 758 varieties crop Barley, where this is mentioned in the description.

The causal agent of the disease is the highly specialized fungus Blumeria graminis f. sp. hordei. The pathogen infects all above-ground plant organs, forming a superficial mycelium that attaches via appressoria and directs haustoria into epidermal cells for nutrient uptake. In mild climates, the fungus survives on winter crops, while in harsh conditions, it persists in the form of cleistothecia on plant debris.

Symptoms appear as a white, web-like coating that eventually densifies into cotton-like patches, which take on a yellowish-grey hue. At later stages, black dots—cleistothecia—develop within the coating. The infection leads to yellowing and wilting of leaves, impairment of photosynthesis, and grain shriveling.

Genetic protection of barley is based on the use of more than 100 identified resistance alleles, including the Mla and Ml genes and the mlo locus. Of particular importance are the mlo genes (e.g., mlo1, mlo11), which provide effective resistance by preventing the penetration of fungal haustoria into plant cells.

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

Sources8

Varieties of Barley 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.

SY Heroo

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG

DE
4 records

Hordeum vulgare L. · Barley

SEMILLAS BATLLE, S.A.

ES
4 records

Escape

Terminated

Hordeum vulgare L. · Barley

Sejet Planteforaedling I,S

DK
4 records

KWS Tender

Withdrawn

Hordeum vulgare L. · Barley

KWS LOCHOW GMBH, DE

DE FR PL
3 records

Radegast

Active

Hordeum vulgare L. · Barley

PLANT SELECT, spol. s r.o. (CZ)

CZ SK
5 records

Lucian

Active

Hordeum vulgare L. · Barley

VASILESCU LILIANABUDE ALEXANDRUPETCU ELENACIUCA MATILDA

RO
4 records

Kestrel

Terminated

Hordeum vulgare L. · Barley

UNICORN PLANT BREEDERS

DK
7 records

Caprima

Terminated

Hordeum vulgare L. · Barley

LAUBACH| NORDSAAT Saatzuchtgesellschaft mbH - Zuchtstation Gudow - Herrn Dr. Eberhard Laubach

DE
4 records

Rekrut

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
4 records

Trofeum

Active

Hordeum vulgare L. · Barley

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

PL
4 records

Smilla

Terminated

Hordeum vulgare L. · Barley

Sejet Planteforaedling I,S

DK
4 records

LG Barok

Active

Hordeum vulgare L. · Barley

Limagrain Europe S.A.S

FR
4 records

Duplex

Terminated

Hordeum vulgare L. · Barley

Saatzucht Streng-Engelen GmbH & Co. KG^^^Pflanzenzucht SaKa GmbH & Co. KG

DE
5 records

Hebe

Protection expired

Hordeum vulgare L. · Barley

Station Van Heverlee (BE)

DK FR
5 records

Hordeum vulgare L. · Barley

W. von Borries-Eckendorf GmbH & Co.KG

CZ
4 records

Kiruna

Terminated

Hordeum vulgare L. · Barley

SAATZUCHT STRENG-ENGELEN GMBH&CO. KG

DK SK
5 records

Quarzo

Active

Hordeum vulgare L. · Barley

Società Produttori Sementi S.p.A.^^^Alberto Gianinetti^^^Nadia Faccini^^^Donata Pagani^^^Marina Baronchelli^^^Camillo Corvi

IT
4 records

Kamrat

Active

Hordeum vulgare L. · Barley

Danko Hodowla Roslin Sp.z.o.o.

PL
4 records

Rubaszek

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
4 records

Bolivia

Active

Hordeum vulgare L. · Barley

NORDIC SEED

DK
4 records

Ebraska

Terminated

Hordeum vulgare L. · Barley

Landwirtschaftliche Fachschule Edelhof Saatzucht

AT
3 records

Basza

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
4 records

Format

Active

Hordeum vulgare L. · Barley

FILIPPOV EVGENIJ GRIGOR'EVICh / DONTSOVA ALEKSANDRA ALEKSANDROVNA / DONTSOV DMITRIJ PETROVICh / TERNOVAYa ELENA ALEKSANDROVNA / DOROShENKO E'DUARD SERGEEVICh / SARYChEVA NINA IVANOVNA / DOROShENKO EKATERINA SERGEEVNA / SKVORTSOVA YuLIYa GENNAD'EVNA / OVSY

SK
4 records

Oodin

Active

Hordeum vulgare L. · Barley

Syngenta Participations AG

AT DE
4 records

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