Diseases
Hordeum vulgare L.
A fungal disease of barley caused by the obligate biotroph Blumeria graminis f. sp. hordei, which manifests as a white coating on the above-ground organs of the plant.
In the reference 758 varieties crop Barley, where this is mentioned in the description.
The causal agent of the disease is the highly specialized fungus Blumeria graminis f. sp. hordei. The pathogen infects all above-ground plant organs, forming a superficial mycelium that attaches via appressoria and directs haustoria into epidermal cells for nutrient uptake. In mild climates, the fungus survives on winter crops, while in harsh conditions, it persists in the form of cleistothecia on plant debris.
Symptoms appear as a white, web-like coating that eventually densifies into cotton-like patches, which take on a yellowish-grey hue. At later stages, black dots—cleistothecia—develop within the coating. The infection leads to yellowing and wilting of leaves, impairment of photosynthesis, and grain shriveling.
Genetic protection of barley is based on the use of more than 100 identified resistance alleles, including the Mla and Ml genes and the mlo locus. Of particular importance are the mlo genes (e.g., mlo1, mlo11), which provide effective resistance by preventing the penetration of fungal haustoria into plant cells.
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.
Hordeum vulgare L. · Barley
Solonechnyi Pavlo Mykolaiovych, Vazhenina Ol`ha IEvheniivna, Naumov Oleksii Hermanovych, Vasko Nataliia Ivanivna, Kozachenko Mykhailo Romanovych,
Hordeum vulgare L. · Barley
Betsenko Liudmyla Bronislavivna, Korniichuk Oleksandr Vasylovych, Doroshcuk Vasyl Oleksiiovych,
Hordeum vulgare L. · Barley
Savranchuk Volodymyr Viktorovych, Mel`nychenko Mykhailo Leontiiovych,
Hordeum vulgare L. · Barley
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Hordeum vulgare L. · Barley
Florimond Desprez
Hordeum vulgare L. · Barley
Lantmännen SW Seed
Hordeum vulgare L. · Barley
INNOSEEDS
Hordeum vulgare L. · Barley
Serasem, FR
Hordeum vulgare L. · Barley
Kuz`menko Halyna Iosypivna, Vlasenko Volodymyr Anatoliiovych, Shubenko Nadiia Petrivna, Shubenko Ivan Andriiovych,
Hordeum vulgare L. · Barley
D. Valcheva, D. Valchev, S. Todorova, Ya. Pencheva
Hordeum vulgare L. · Barley
VON RUMKER (DE)
Hordeum vulgare L. · Barley
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Hordeum vulgare L. · Barley
CARLSBERG A/S
Hordeum vulgare L. · Barley
SEJET PLANTEFORÆDLING
Hordeum vulgare L. · Barley
NICKERS.RPB LTD&NICKER.IN
Hordeum vulgare L. · Barley
Cebeco Handelsraad (NL)
Hordeum vulgare L. · Barley
Manziuk Vitalii Tymofiiovych, Fedorenko Vira Oleksandrivna, Naumov Oleksii Hermanovych, Vasko Nataliia Ivanivna, Kozachenko Mykhailo Romanovych,
Hordeum vulgare L. · Barley
Probstdorfer Saatzucht Ges.m.b.H & Co KG
Hordeum vulgare L. · Barley
Tomcsanyi Andras / Horvathne Palagyi Livia / Romanne Nigo Aniko / Keppel Tiborne / Zsolnai Antalne
Hordeum vulgare L. · Barley
Lemaire Deffontaines (FR)
Hordeum vulgare L. · Barley
DR ERNST REHSE
Hordeum vulgare L. · Barley
CSIC/SEMILLAS BATLLE
Hordeum vulgare L. · Barley
Wiersum Plantbreeding B.V.
Hordeum vulgare L. · Barley
Zinkovs`ka Inna Oleksandrivna, Kraievs`kyi Anatolii Mykolaiovych, Karpenko Oleksandr Oleksandrovych,