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ActiveHordeum vulgare L. · Barley
KWS UK LTD
Diseases
Rhynchosporium
Rhynchosporium is a dangerous fungal disease of barley and rye, manifesting as leaf blotches and leading to premature drying and significant yield losses.
Mentioned in descriptions 1 358 varieties reference book.
Rhynchosporium manifests as the formation of oval or irregular gray, gray-green, or dull green blotches on leaves, leaf sheaths, and occasionally stems and spikes. In barley, the blotches often have a dark brown margin, whereas in rye it may be absent; sporulation may develop on the underside of the leaf, and in cases of severe infection, the leaves dry out.
The development of the pathogen depends on weather conditions, favoring a humid temperate climate with temperatures from +15°C to +20°C and relative humidity above 80%. Risk factors include late sowing dates, high seeding density, weed abundance, excess nitrogen, and the presence of infected crop residues.
Resistance of varieties is often quantitative and determined by a set of loci, however, due to the high variability of the fungus, the resistance status may be lost. The evaluation of varieties is conducted during multi-year field trials using scoring scales or laboratory methods of leaf segment inoculation with the calculation of a resistance index.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Hordeum vulgare L. · Barley
KWS UK LTD
x Triticosecale Wittm. ex A. Camus · Triticale
Florimond Desprez Veuve et Fils, FR
Hordeum vulgare L. · Barley
Apsovsementi S.p.A., CREA-GB
Hordeum vulgare L. · Barley
Sejet Planteforaedling I,S
Hordeum vulgare L. · Barley
SARL ADRIEN MOMONT ET FILS, FR
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Hordeum vulgare L. · Barley
KWS MOMONT SAS
Secale cereale L. · Rye
HODOWLA ROSLIN SMOLICE SP.ZOO
x Triticosecale Wittm. ex A. Camus · Triticale
SAS Florimond Desprez Veuve & Fils
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Hordeum vulgare L. · Barley
KWS MOMONT RECHERCHE SARL, FR
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Hordeum vulgare L. · Barley
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Hordeum vulgare L. · Barley
Apsovsementi, I
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Hordeum vulgare L. · Barley
Apsovsementi S.p.A., CREA-GB
Hordeum vulgare L. · Barley
TIMULE GENOVEFA YaZEPOVNA / STRUMLE ZEL'MA IVANOVNA / VIKSNE VELTA KARLOVNA / KUDE RAISA MIHAJLOVNA
Secale cereale L. · Rye
Lolium multiflorum Lam. · Italian ryegrass
DLF SEEDS A/S| DLF Seeds A/S
Hordeum vulgare L. · Barley
SERASEM
x Triticosecale Wittm. ex A. Camus · Triticale
LEMAIRE DEFFONTAINES S.A.S.
Hordeum vulgare L. · Barley
NORDSAAT Saatzucht GmbH Frau Dr. Lissy Kuntze