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Diseases

Barley Scald

Hordeum vulgare L.

A fungal disease of barley caused by Rhynchosporium commune. It manifests as characteristic lesions with a light-colored center and a dark border, causing premature leaf drying.

In the reference 393 varieties crop Barley, where this is mentioned in the description.

The causal agent of barley scald is the fungus Rhynchosporium commune (formerly known as Rhynchosporium secalis). The pathogen is highly variable, which contributes to the constant emergence of new, aggressive pathotypes that overcome cultivar resistance.

The disease appears on leaves and leaf sheaths as water-soaked, grayish-blue spots that subsequently take on an oval or irregular shape with a light center and a dark brown or reddish-brown border. With intensive development, the spots coalesce, leading to chlorosis and leaf desiccation, while the net-like pattern characteristic of other blotches is absent.

Genetic resistance of barley to this disease is controlled by specific genes designated with the prefix Rrs (e.g., Rrs9, Rrs4, rrs6, rrs7). The Rrs9 gene maintained high efficacy for a long time; however, due to the high plasticity of the fungus, breeders are forced to constantly search for new resistance donors, including recessive genes.

General information about the subject — on the page Rhynchosporium.

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.

KWS Meridian

Active

Hordeum vulgare L. · Barley

Lochow-Petkus GmbH (DE)

AT CZ DE DK EE FR +6
25 records

RGT Asteroid

Active

Hordeum vulgare L. · Barley

Regis Dupont

DE FR UA
15 records

SY Dakoota

Active

Hordeum vulgare L. · Barley

Syngenta Participations,CH

CZ DE FR UA
12 records

Conchita

Active

Hordeum vulgare L. · Barley

SCHINKEL BURKHARD

AT DE DK EE FI FR +7
35 records

Laureate

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

AT CZ DE EE FI FR +7
35 records

Quench

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

AT DE DK EE FI FR +5
26 records

Explorer

Active

Hordeum vulgare L. · Barley

VRDOLJAK GUSTAVO OMAR

CZ DE FR LT SK UA
28 records

Bente

Active

Hordeum vulgare L. · Barley

Saaten-Union

CZ DE DK EE FR HU +3
26 records

Uta

Active

Hordeum vulgare L. · Barley

UNIV. PROF. DR. HERMAN HÄNSEL

CZ DE DK EE FI FR +5
25 records

Odyssey

Active

Hordeum vulgare L. · Barley

Nickerson International Research SNC (FR)

CZ EE FR LT LU NL +2
21 records

Skyway

Active

Hordeum vulgare L. · Barley

SECOBRA RECHERCHES S.A.S

AT DE DK EE FI LT +2
20 records

Braemar

Protection expired

Hordeum vulgare L. · Barley

Syngenta UK Ltd

CZ DE EE FI FR HU +3
20 records

Publican

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

CZ DE DK EE FI FR +2
20 records

KWS Scala

Active

Hordeum vulgare L. · Barley

KWS Lochow, D

AT CZ DE HU SK UA
16 records

Avalon

Active

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GmbH&Co.KG

CZ DE EE FI FR LT +2
20 records

Sanette

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

CZ DK EE FR IE LT +1
17 records

LG Tosca

Active

Hordeum vulgare L. · Barley

LIMAGRAIN EUROPE

CZ DE FR NL PL SK +1
15 records

Lexy

Active

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GMBH and CO.KG

DE EE FI FR LT PL +1
22 records

Focus

Active

Hordeum vulgare L. · Barley

SECOBRA RECHERCHES S.A.S

CZ DE DK FI FR UA
22 records

KWS Tonic

Active

Hordeum vulgare L. · Barley

KWS LOCHOW GMBH, DE

AT CZ DE DK FR LU +1
15 records

Wendy

Active

Hordeum vulgare L. · Barley

Nordsaat Saatzuchtgesellschaft mbH

AT CZ DE FR HU PL +1
12 records

NFC Tipple

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

DE DK FI FR HR LT
17 records

Shuffle

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

AT CZ DE FR SK UA
14 records

KWS Tenor

Active

Hordeum vulgare L. · Barley

KWS Lochow

CZ DE EE HU SK UA
16 records