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
Sebastien Cuvelier, RAGT 2n
Avena sativa L. · Oat
Saaten-Union
Avena sativa L. · Oat
Nordsaat Saatzucht GmbH, D-38895 Langenstein, OT Bohnshausen
Avena sativa L. · Oat
Nordsaat Saatzucht GmbH Saatzucht Langenstein
Avena sativa L. · Oat
Nordsaat Saatzuchtgesellschaft m.b.H. (DE)
Avena sativa L. · Oat
Nordsaat Saatzuchtgesellschaft m.b.H. (DE)
Avena sativa L. · Oat
Lochow Petkus GmbH (DE)
Avena sativa L. · Oat
Nordsaat Saatzucht GmbH, Böhnhausen DE
Avena sativa L. · Oat
Lochow Petkus GmbH (DE)
Avena sativa L. · Oat
Nordsaat Saatzucht GmbH,DE
Avena sativa L. · Oat
Nordsaat Saatzuchtgesellschaft mbH
Avena sativa L. · Oat
Saatzucht Bauer GmbH & Co KG
Avena sativa L. · Oat
NORDSAAT SAATZUCHT
Avena sativa L. · Oat
Lochow-Petkus GmbH (DE)
Avena sativa L. · Oat
SELGEN A.S
Avena sativa L. · Oat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Avena sativa L. · Oat
NORDSAAT SAATZUCHT
Avena sativa L. · Oat
NORDSAAT SAATZUCHT
Avena sativa L. · Oat
NORDSAAT SAATZUCHT
Avena sativa L. · Oat
Peter Hozlar
Avena sativa L. · Oat
WOUDA| Ing. K.P. Wouda c/o Semundo B.V.
Avena sativa L. · Oat
NORDSAAT SAATZUCHT
Avena sativa L. · Oat
Lantmõnnen ek f÷r Plant Breeding department
Avena sativa L. · Oat
Johanna Holmblad