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.

Organa

Active

Hordeum vulgare L. · Barley

Nordic Seed A-S, DK

CZ DE DK FR

11 records

Pelican

Active

Hordeum vulgare L. · Barley

SAATEN UNION RECHERCHE

BE DE FR PL

14 records

KWS Infinity

Active

Hordeum vulgare L. · Barley

KWS UK LTD

DE FR IE LU

11 records

LG Capitol

Active

Hordeum vulgare L. · Barley

Limagrain Europe S.A.S

CZ DE DK FR

10 records

Georgie

Protection expired

Hordeum vulgare L. · Barley

Rothwell Plant Breeders

DK FR HR IE

10 records

Delibes

Protection expired

Hordeum vulgare L. · Barley

NICKERSON-ADVANTA

DK EE FR NL

11 records

Bombay

Active

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GMBH and CO.KG

DE DK HU PL

10 records

Alinghi

Protection expired

Hordeum vulgare L. · Barley

Lochow-Petkus GmbH (DE)

CZ DE FR LT

10 records

Tyra

Active

Hordeum vulgare L. · Barley

Pajbjergfonden

DK FI SE

13 records

Pleiade

Active

Hordeum vulgare L. · Barley

Secobra Recherches, F

AT DE FR

10 records

Riviera

Active

Hordeum vulgare L. · Barley

RAGT SEEDS LTD

BE FR PL

13 records

Ludmilla

Protection expired

Hordeum vulgare L. · Barley

Staatzucht Firlbeck GmbH & Co.KG

AT DE EE

11 records

Chronicle

Active

Hordeum vulgare L. · Barley

Nickerson International Research S.N.C., 63720 Chappes

ES FR LT

9 records

Maltesse

Active

Hordeum vulgare L. · Barley

Secobra, F

CZ FR

11 records

Etincel

Active

Hordeum vulgare L. · Barley

Secobra, F

DE FR

10 records

Bianca

Active

Hordeum vulgare L. · Barley

SAATZUCHT STRENG-ENGELEN GMBH&CO. KG

AT DE DK LU

8 records

Ambrosia

Active

Hordeum vulgare L. · Barley

Saatzucht Donau GmbH & Co.KG

AT DE PL

10 records

SY Arrow

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd. Dr. Hazel Bull Market Stainton

CZ DE DK FI

7 records

Alvari

Active

Hordeum vulgare L. · Barley

Reino Aikasalo, Boreal Plant Breeding Ltd

EE FI LT LV

9 records

Teksas

Active

Hordeum vulgare L. · Barley

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

LT PL

8 records

SY Kestrel

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG, CH

DE FR HR

9 records

Trekker

Active

Hordeum vulgare L. · Barley

Elina Nissilä, Eero Nissilä, Reino Aikasalo, Boreal Plant Breeding Ltd.

EE FI LT

9 records

SY Tennyson

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG, CH

FR HR IE

9 records

Sy Loona

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG, CH

DE FR UA

10 records

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