Skip to content
agronom.cc cultivar database

Diseases

Ramularia leaf spot of barley

Hordeum vulgare L.

A fungal disease of barley caused by Ramularia collo-cygni, which develops as an endophyte for a long period and manifests as necrotic spots delimited by leaf veins.

In the reference 83 varieties crop Barley, where this is mentioned in the description.

The pathogen is the imperfect fungus Ramularia collo-cygni, which resides in plant tissues in an endophytic form for a long time, showing no signs until the flowering phase or the onset of stress. Typical symptoms include the appearance of small reddish-brown or brown-black rectangular spots, surrounded by a chlorotic halo, which are delimited by leaf veins.

As the disease progresses, the spots coalesce, causing premature yellowing and death of the leaves, while sporulation in the form of black dots can also affect awns and glumes. Visual diagnosis is difficult due to the similarity with physiological leaf spots, therefore PCR testing is used for accurate identification of the pathogen.

Currently, there is no generally accepted classification of races or pathotypes of Ramularia collo-cygni, although studies confirm the high variability of the pathogen. Specific resistance genes in barley breeding are not widely described, and resistant varieties are practically absent, making the search for resistance donors a priority task.

General information about the subject — on the page Ramularia leaf spot.

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.

Thimea

Active

Hordeum vulgare L. · Barley

Saatzucht Donau GmbH & Co.KG

AT
4 records

SY Heroo

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG

DE
4 records

Sarbi

Terminated

Hordeum vulgare L. · Barley

Nordic Seed A/S

DK
4 records

Romilda

Terminated

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GMBH and CO.KG

EE
3 records

KWS Splendis

Active

Hordeum vulgare L. · Barley

KWS MOMONT RECHERCHE SARL, FR

FR
4 records

Jorinde

Terminated

Hordeum vulgare L. · Barley

Dr. Heidi Jaiser c/o Pajbjerg A/S

DE
4 records

Kamoto

Terminated

Hordeum vulgare L. · Barley

NICKERSON (UK)

DE
5 records

Hatifa

Terminated

Hordeum vulgare L. · Barley

Nordsaat Saatzuchtgesellschaft mbH

DK
4 records

Calador

Terminated

Hordeum vulgare L. · Barley

Nickerson International Research S.N.C.

DE
4 records

Bayava

Terminated

Hordeum vulgare L. · Barley

BORRIES| W. von Borries-Eckendorf GmbH & Co. Kommanditgesellschaft

DE
3 records

Almut

Active

Hordeum vulgare L. · Barley

Saatzucht Bauer Biendorf GmbH & Co. KG

DE
6 records

Annicka

Terminated

Hordeum vulgare L. · Barley

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

DE
5 records

Iver

Active

Hordeum vulgare L. · Barley

Graminor AS, N-2322 Ridabu

4 records

Dioptric

Terminated

Hordeum vulgare L. · Barley

Syngenta Participations AG

4 records

Persano

Active

Hordeum vulgare L. · Barley

GENETIC SERVICES S.R.L.

IT
3 records

Ema DS

Active

Hordeum vulgare L. · Barley

Lietuvos agrarinių ir miškų mokslų centras

LT
4 records

Carditello

Active

Hordeum vulgare L. · Barley

GENETIC SERVICES S.R.L.

IT
3 records

Bivouac

Terminated

Hordeum vulgare L. · Barley

LEMAIRE DEFFONTAINES S.A.S.

FR
4 records

Igor

Terminated

Hordeum vulgare L. · Barley

Sejet Planteforaedling I,S

HR PL
2 records

TORUP

Terminated

Hordeum vulgare L. · Barley

PER LUNDIN C/O SVALÖF WEIBULL AB

DK
4 records

STRATEGO

Withdrawn

Hordeum vulgare L. · Barley

SEJET PLANT BREEDING

DK
2 records

Millena

Terminated

Hordeum vulgare L. · Barley

Probstdorfer Saatzucht Ges.m.b.H & Co KG

AT
3 records

Frederica

Active

Hordeum vulgare L. · Barley

W. von Borries-Eckendorf GmbH & Co.KG

AT
2 records

Eternity

Active

Hordeum vulgare L. · Barley

Agri-Obtentions S.A.

FR
2 records