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Diseases

Oat crown rust

Avena sativa L.

The most dangerous fungal disease of oats, caused by the basidiomycete fungus Puccinia coronata f. sp. avenae. It is characterized by the appearance of orange uredinia on the leaves and the formation of characteristic teliospores with crown-like appendages.

In the reference 182 varieties crop Oat, where this is mentioned in the description.

The pathogen is a heteroecious fungus that completes its spermogonial and aecial stages on species of buckthorn (Rhamnus), while the uredinial and telial stages occur on oats. High genetic variability of the pathogen, which includes about 150 races, allows it to rapidly overcome varietal resistance.

Symptoms appear during the heading or grain-filling phase as large, round, orange pustules on the upper side of leaf blades. By the end of the growing season, shiny black telia cushions form on the underside of the leaves, containing teliospores with outgrowths resembling a crown.

In oat breeding for resistance, both race-specific Pc-genes (such as Pc39, Pc68, Pc91, Pc94), which are monitored by molecular markers, and non-specific resistance determined by quantitative trait loci are used. The severity of infection in varieties is traditionally assessed using scoring scales.

General information about the subject — on the page Rust.

Sources8

Varieties of Oat 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.

Talent

Active

Avena sativa L. · Oat

Výzkumné Centrum Selton s.r.o., Selgen A.S.

CZ PL UA
7 records

Avena sativa L. · Oat

KWS MOMONT RECHERCHE SARL, FR

FR
5 records

Pablo

Active

Avena sativa L. · Oat

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

NL PL
6 records

WPB Enya

Active

Avena sativa L. · Oat

WIERSUM PLANTBREEDING

IE
4 records

Mostyn

Terminated

Avena sativa L. · Oat

Plant Breeding International Cambridge Ltd (GB)

DK FR
6 records

Cromwell

Active

Avena sativa L. · Oat

ABERYSTWYTH UNIVERSITY (GB)

FR
4 records

Curly

Terminated

Avena sativa L. · Oat

NORDSAAT SAATZUCHT

DE
5 records

Berber

Active

Avena sativa L. · Oat

Saatzucht Engelen Büchling

AT DE
5 records

Monarch

Active

Avena sativa L. · Oat

Saatbau Linz OÖ. Landes-Saatbaugen.reg.Gen.m.b.H.

AT
5 records

Avena sativa L. · Oat

Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Szilvia Bencze^^^Balázs Varga

HU
5 records

Wiesel

Terminated

Avena sativa L. · Oat

Nordsaat Saatzuchtgesellschaft m.b.H. (DE)

DE FR
5 records

Avena sativa L. · Oat

KWS MOMONT RECHERCHE SARL, FR

FR
4 records

Hecht

Terminated

Avena sativa L. · Oat

SCHACHSCHNEIDER| NORDSAAT Saatzuchtgesellschaft mit beschraenkter Haftung Herrn Dr. Ralf Schachschneider / GERIES| H. Geries in Fa. NORDSAAT Saatzuchtgesellschaft mbH -Zuchtabteilung Granskevitz-

DE EE
4 records

Fringante

Terminated

Avena sativa L. · Oat

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR HR
3 records

Avena sativa L. · Oat

KWS MOMONT RECHERCHE SARL, FR

FR
4 records

Avena sativa L. · Oat

Pflanzenzucht Oberlimpurg

DE
3 records

Samuel

Terminated

Avena sativa L. · Oat

Hroetzner Hans, Zhyvotkov Leonid Oleksandrovych, Selezen` IUrii Hryhorovych, Zakharenko Oleksandr Hryhorovych,

UA
5 records

Avena sativa L. · Oat

KWS MOMONT RECHERCHE SARL, FR

FR
4 records

Alcudia

Active

Avena sativa L. · Oat

Serasem S.A.S.

ES
4 records

Gniady

Active

Avena sativa L. · Oat

Danko Hodowla Roslin Sp.z.o.o.

CZ PL
4 records

Avena sativa L. · Oat

SW Semundo Limited (GB)

FR
4 records