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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

KWS MOMONT RECHERCHE SARL, FR

FR
2 records

Chapline

Protection expired

Avena sativa L. · Oat

Serasem S.A.S.

FR
3 records

Avena sativa L. · Oat

Lietuvos agrarinių ir miškų mokslų centras

LT
3 records

Araceli

Terminated

Avena sativa L. · Oat

SIA(COM.MADRID)INIA(MADRI

ES
2 records

Kbira

Active

Avena sativa L. · Oat

SEMILLAS BATLLE, S.A.

ES
3 records

Brawi

Terminated

Avena sativa L. · Oat

LOCHOW-PETKUS

ES
2 records

Breton

Active

Avena sativa L. · Oat

Danko Hodowla Roslin Sp.z.o.o.

PL
3 records

Baranja

Active

Avena sativa L. · Oat

Bc Institut d.d. Zagreb (HR)

HR
2 records

Villu

Terminated

Avena sativa L. · Oat

Ilmar Tamm 45%, Johannes Laurson 35%, Hans Küüts 15%, Kaljo Kask 5%

EE
3 records

Millennium

Terminated

Avena sativa L. · Oat

INSTITUTE OF GRASSLAND AND ENVIRONMENTAL RESEARCH

3 records

Dynamit

Active

Avena sativa L. · Oat

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

PL
3 records

Jouvence

Active

Avena sativa L. · Oat

LEMAIRE DEFFONTAINES S.A.S.

FR
3 records

Lipoplus

Terminated

Avena sativa L. · Oat

Mattsson Bengt

SE
3 records

Góral

Terminated

Avena sativa L. · Oat

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
3 records

Mo

Active

Avena sativa L. · Oat

Graminor AS, N-2322 Ridabu

3 records

Kusta

Active

Avena sativa L. · Oat

Ilmar Tamm 70%, Ülle Tamm 25%, Pille Sooväli 5%, Centre of Estonian Rural Research and Knowledge

EE
3 records

Cravache

Protection expired

Avena sativa L. · Oat

Serasem, FR

ES FR
3 records

Acebeda

Terminated

Avena sativa L. · Oat

INIA-OTRI

ES
2 records

Japeloup

Protection expired

Avena sativa L. · Oat

Adrien Momont et Fils SCA (FR)

FR
3 records

Figaro

Active

Avena sativa L. · Oat

Danko Hodowla Roslin Sp.z.o.o.

PL
4 records

Refleks

Active

Avena sativa L. · Oat

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

PL
5 records