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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.

Avena sativa L. · Oat

RAGT 2N S.A.S

FR
4 records

Kertag

Active

Avena sativa L. · Oat

Selgen

CZ
4 records

Avena sativa L. · Oat

Národné Polnohospodárske a Potravinárske Centrum (NPPC)

SK
5 records

Cory

Terminated

Avena sativa L. · Oat

Lochow-Petkus GmbH (DE)

FR
4 records

Rozmar

Active

Avena sativa L. · Oat

Selgen a.s., CZ

CZ
5 records

Kehlibar

Active

Avena sativa L. · Oat

Todorka Savova

BG
4 records

Kozak

Active

Avena sativa L. · Oat

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

CZ PL
4 records

Avena sativa L. · Oat

The New Zealand Institute For Plant & Food Research Ltd.

BG
5 records

Avena sativa L. · Oat

RAGT 2N S.A.S

FR
5 records

Jaak

Terminated

Avena sativa L. · Oat

Johannes Laurson 50%,Ilmar Tamm 20%,Hans Küüts 15%,Ivi Küüts 10%,Kaljo Kask 5%

EE
3 records

Avena sativa L. · Oat

KWS MOMONT RECHERCHE SARL, FR

FR
3 records

Gepard

Active

Avena sativa L. · Oat

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

PL
4 records

Flavia

Active

Avena sativa L. · Oat

ISEA S.P.A.

IT
2 records

Katan

Active

Avena sativa L. · Oat

Nadezhda Antonova

BG
3 records

Huzar

Active

Avena sativa L. · Oat

Danko Hodowla Roslin Sp.z.o.o.

PL
4 records

Exeter

Withdrawn

Avena sativa L. · Oat

Saatzucht Edelhof

CZ
2 records

Avena sativa L. · Oat

Leena Pietilä^^^Boreal Plant Breeding Ltd.^^^Hanna Haikka

FI
4 records

Anchuela

Terminated

Avena sativa L. · Oat

SIA(COM.MADRID)INIA(MADRI

ES
2 records

Avena sativa L. · Oat

RAGT 2n, FR

FR
3 records

Belfer

Active

Avena sativa L. · Oat

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

PL
3 records

Avena sativa L. · Oat

SEMILLAS BATLLE, S.A.

ES
2 records

Neptun

Active

Avena sativa L. · Oat

NORDSAAT SAATZUCHT

DE
3 records

Kreator

Active

Avena sativa L. · Oat

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

PL
3 records