KWS Meridian
ActiveHordeum vulgare L. · Barley
Lochow-Petkus GmbH (DE)
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
Lochow-Petkus GmbH (DE)
Secale cereale L. · Rye
Kryshtofik Renata, Bialokors`kyi IAn, Piatrusiak Alisiia,
Hordeum vulgare L. · Barley
Regis Dupont
Hordeum vulgare L. · Barley
Syngenta Participations,CH
Hordeum vulgare L. · Barley
SCHINKEL BURKHARD
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Hordeum vulgare L. · Barley
VRDOLJAK GUSTAVO OMAR
Hordeum vulgare L. · Barley
Saaten-Union
Secale cereale L. · Rye
Saaten-Union
Hordeum vulgare L. · Barley
UNIV. PROF. DR. HERMAN HÄNSEL
Hordeum vulgare L. · Barley
Nickerson International Research SNC (FR)
Hordeum vulgare L. · Barley
SECOBRA RECHERCHES S.A.S
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Hordeum vulgare L. · Barley
KWS Lochow, D
Hordeum vulgare L. · Barley
SAATZUCHT JOSEF BREUN GmbH&Co.KG
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Hordeum vulgare L. · Barley
LIMAGRAIN EUROPE
Hordeum vulgare L. · Barley
SAATZUCHT JOSEF BREUN GMBH and CO.KG
Secale cereale L. · Rye
Schmiedchen Brigitta, Menzel Jutta, Dr. Wilde Peer,
Secale cereale L. · Rye
KWS Lochow
x Triticosecale Wittm. ex A. Camus · Triticale
DANKO HODOWLA| "DANKO" Hodowla Roslin Sp. z o.o.
Secale cereale L. · Rye
Peer Wilde^^^Brigitta Schmiedchen^^^Jutta Menzel