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.

HORNISSE

Withdrawn

Hordeum vulgare L. · Barley

SAATZUCHT DR H C HEGE GBRMBH

3 records

Rubiales

Active

Hordeum vulgare L. · Barley

SEMILLAS BATLLE, S.A.

3 records

Rubiana

Active

Hordeum vulgare L. · Barley

SEMILLAS BATLLE, S.A.

3 records

Siri

Terminated

Hordeum vulgare L. · Barley

NORDIC SEED A/S

DK SE

4 records

Akka

Terminated

Hordeum vulgare L. · Barley

W WEIBULL

2 records

LG Stamgast

Active

Hordeum vulgare L. · Barley

Limagrain Europe S.A.S

3 records

Halychanyn

Active

Hordeum vulgare L. · Barley

Stepanchuk Volodymyr Volodymyrovych, Babash Andrii Borysovych, Perekhrest Valentyna Arkhypivna, Tarasiuk Vasyl` Prokopovych, Linchevskyi Anatolii Adamovych,

3 records

Gula

Protection expired

Hordeum vulgare L. · Barley

Vive, Kurt

DK SE

3 records

Heines Haisa II

Active

Hordeum vulgare L. · Barley

KWS Lochow

2 records

Rusyn

Active

Hordeum vulgare L. · Barley

Hoiman Serhii Volodymyrovych, Sheremet Oleksandr Martynovych, Lehkun Ihor Borysovych, Linchevskyi Anatolii Adamovych,

3 records

Dokaz

Active

Hordeum vulgare L. · Barley

Huseinov Vali Mamedovych, Vesna Serhii Viktorovych, Naumov Oleksii Hermanovych, Vasko Nataliia Ivanivna, Kozachenko Mykhailo Romanovych,

3 records

Trudivnyk

Terminated

Hordeum vulgare L. · Barley

Kostiuk Stanislav Vasyl`ovych, Sichniak Vira IUkhymivna, Linchevskyi Anatolii Adamovych, Sheremet Oleksandr Martynovych,

2 records

CIB 333

Terminated

Hordeum vulgare L. · Barley

SEMILLAS BATLLE, S.A.

3 records

Hasso

Protection expired

Hordeum vulgare L. · Barley

LOCHOW-PETKUS

DK NL

3 records

Bryl

Protection expired

Hordeum vulgare L. · Barley

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

3 records

Vivat

Active

Hordeum vulgare L. · Barley

DONTSOVA ALEKSANDRA ALEKSANDROVNA / DONTSOV DMITRIJ PETROVICh / ROMANYuKIN ALEKSANDR EGOROVICh / TERNOVAYa ELENA ALEKSANDROVNA / IGNAT'EVA NATAL'Ya GENNAD'EVNA / ShIShKIN NIKOLAJ VASIL'EVICh / YaNKOVSKIJ NIKOLAJ GRIGOR'EVICh / FILIPPOV EVGENIJ GRIGOR'EVIC

4 records