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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.

Keely

Active

Avena sativa L. · Oat

NORDSAAT Saatzuchtgesellschaft mbH - Zuchtstation Granskevitz - Dr. Steffen Beuch

DE FR IE
7 records

Flämingsfit

Terminated

Avena sativa L. · Oat

Lochow-Petkus GmbH (DE)

DE EE FR
7 records

Avena sativa L. · Oat

Trond Buraas

EE FI SE
8 records

Galant

Active

Avena sativa L. · Oat

Lantmaennen ek foer

EE LT SE
7 records

Elison

Active

Avena sativa L. · Oat

Saatzucht Edelhof

AT CZ LU
7 records

Galeon

Active

Avena sativa L. · Oat

Danko Hodowla Roslin Sp.z.o.o.

LT PL SE UA
8 records

Vodka

Active

Avena sativa L. · Oat

SARL ADRIEN MOMONT ET FILS, FR

FR IE LU
7 records

Romulus

Active

Avena sativa L. · Oat

Danko Hodowla Roslin Sp.z.o.o.

FI PL
7 records

Mascani

Active

Avena sativa L. · Oat

Aberystwyth University (IBERS)

IE NL
5 records

Avena sativa L. · Oat

Wiersum Plantbreeding BV, 9670 AA Winschoten

NL
5 records

Salomon

Terminated

Avena sativa L. · Oat

Wenzelsche Saatzucht und Lagerhallen GmbH u. Co KG

AT DE UA
7 records

Avena sativa L. · Oat

KWS MOMONT RECHERCHE SARL, FR

EE FR IE
6 records

Firth

Protection expired

Avena sativa L. · Oat

Lochow-Petkus GmbH (DE)

DE FR
6 records

Avena sativa L. · Oat

Wiersum Plantbreeding B.V.

DK EE LT
5 records

SW Betania

Protection expired

Avena sativa L. · Oat

Mattsson Bengt

SE
6 records

Poker

Active

Avena sativa L. · Oat

Danko Hodowla Roslin Sp.z.o.o.

EE PL
6 records

Winnipeg

Terminated

Avena sativa L. · Oat

KWS Lochow

AT DE
5 records

Avena sativa L. · Oat

SARL ADRIEN MOMONT ET FILS, FR

FR PL
5 records

Kolbu

Terminated

Avena sativa L. · Oat

Graminor AS, N-2322 Ridabu

EE FI
5 records

Charmoise

Protection expired

Avena sativa L. · Oat

Serasem S.A.S.

DE FR
7 records

Barra

Protection expired

Avena sativa L. · Oat

W WEIBULL

IE
6 records

Avena sativa L. · Oat

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

AT PL
7 records

Avena sativa L. · Oat

SARL ADRIEN MOMONT ET FILS, FR

FR LU
5 records