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Diseases

Rhynchosporium

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.

Sources10

Breakdown by crop

Found in these crops

Varieties that feature this in their description

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)

AT CZ DE DK EE FR +6
25 records

Secale cereale L. · Rye

Kryshtofik Renata, Bialokors`kyi IAn, Piatrusiak Alisiia,

AT CZ DE HR PL UA
17 records

Hordeum vulgare L. · Barley

Regis Dupont

DE FR UA
15 records

Hordeum vulgare L. · Barley

Syngenta Participations,CH

CZ DE FR UA
12 records

Conchita

Active

Hordeum vulgare L. · Barley

SCHINKEL BURKHARD

AT DE DK EE FI FR +7
35 records

Laureate

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

AT CZ DE EE FI FR +7
35 records

Quench

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

AT DE DK EE FI FR +5
26 records

Explorer

Active

Hordeum vulgare L. · Barley

VRDOLJAK GUSTAVO OMAR

CZ DE FR LT SK UA
28 records

Bente

Active

Hordeum vulgare L. · Barley

Saaten-Union

CZ DE DK EE FR HU +3
26 records

Secale cereale L. · Rye

Saaten-Union

AT CZ DE EE FI LT +4
20 records

Uta

Active

Hordeum vulgare L. · Barley

UNIV. PROF. DR. HERMAN HÄNSEL

CZ DE DK EE FI FR +5
25 records

Odyssey

Active

Hordeum vulgare L. · Barley

Nickerson International Research SNC (FR)

CZ EE FR LT LU NL +2
21 records

Skyway

Active

Hordeum vulgare L. · Barley

SECOBRA RECHERCHES S.A.S

AT DE DK EE FI LT +2
20 records

Braemar

Protection expired

Hordeum vulgare L. · Barley

Syngenta UK Ltd

CZ DE EE FI FR HU +3
20 records

Publican

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

CZ DE DK EE FI FR +2
20 records

Hordeum vulgare L. · Barley

KWS Lochow, D

AT CZ DE HU SK UA
16 records

Avalon

Active

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GmbH&Co.KG

CZ DE EE FI FR LT +2
20 records

Sanette

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

CZ DK EE FR IE LT +1
17 records

LG Tosca

Active

Hordeum vulgare L. · Barley

LIMAGRAIN EUROPE

CZ DE FR NL PL SK +1
15 records

Lexy

Active

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GMBH and CO.KG

DE EE FI FR LT PL +1
22 records

Secale cereale L. · Rye

Schmiedchen Brigitta, Menzel Jutta, Dr. Wilde Peer,

AT CZ DE DK EE PL +1
15 records

Secale cereale L. · Rye

KWS Lochow

AT DE DK EE FI PL +1
14 records

Dinaro

Active

x Triticosecale Wittm. ex A. Camus · Triticale

DANKO HODOWLA| "DANKO" Hodowla Roslin Sp. z o.o.

CZ DE DK LT NL PL +1
16 records

Secale cereale L. · Rye

Peer Wilde^^^Brigitta Schmiedchen^^^Jutta Menzel

AT DE DK EE PL UA
14 records

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