Diseases
Avena sativa L.
A fungal disease of common oats caused by the specialized form of the ascomycete Blumeria graminis f. sp. avenae. It manifests as a white, web-like coating on plant organs, which reduces the intensity of photosynthesis and grain yield by 10–20% or more.
In the reference 176 varieties crop Oat, where this is mentioned in the description.
The pathogen infects plants at early developmental stages, forming matte spots on leaf sheaths that transform into a loose white coating. During the growing season, the coating densifies into cotton-like pads on leaves and stems, and by maturity, it acquires a dirty-gray hue and becomes covered with black dots — cleistothecia. The infection leads to the destruction of chlorophyll, reduced tillering, and a slowdown in the overall growth of the crop.
The pathogen is characterized by high physiological specialization and the presence of numerous races with varying virulence. Genetic resistance to powdery mildew in cultivated oats is limited and controlled by four dominant genes. For the breeding of new varieties, resistance sources from wild species such as Avena barbata, Avena strigosa, and Avena hirtula are actively utilized.
General information about the subject — on the page Powdery mildew.
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
Landwirtschaftliche Fachschule Edelhof Saatzucht
Avena sativa L. · Oat
ABERYSTWYTH UNIVERSITY (GB)
Avena sativa L. · Oat
NORDSAAT SAATZUCHT
Avena sativa L. · Oat
Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Szilvia Bencze^^^Balázs Varga
Avena sativa L. · Oat
KWS MOMONT RECHERCHE SARL, FR
Avena sativa L. · Oat
RAGT 2N S.A.S
Avena sativa L. · Oat
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Avena sativa L. · Oat
Senova Ltd (GB)
Avena sativa L. · Oat
KWS MOMONT RECHERCHE SARL, FR
Avena sativa L. · Oat
Pflanzenzucht Oberlimpurg
Avena sativa L. · Oat
KWS MOMONT RECHERCHE SARL, FR
Avena sativa L. · Oat
Danko Hodowla Roslin Sp.z.o.o.
Avena sativa L. · Oat
SW Semundo Limited (GB)
Avena sativa L. · Oat
RAGT 2N S.A.S
Avena sativa L. · Oat
Selgen
Avena sativa L. · Oat
Národné Polnohospodárske a Potravinárske Centrum (NPPC)
Avena sativa L. · Oat
Selgen a.s., CZ
Avena sativa L. · Oat
SELGEN A.S
Avena sativa L. · Oat
Landwirtschaftliche Fachschule Edelhof Saatzucht
Avena sativa L. · Oat
Serasem, FR
Avena sativa L. · Oat
KWS MOMONT RECHERCHE SARL, FR
Avena sativa L. · Oat
KWS MOMONT RECHERCHE SARL, FR
Avena sativa L. · Oat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Avena sativa L. · Oat
MHR SEEDS LIMITED