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

Barley Scald 393 Rhynchosporium Scald of Triticale 65 Rhynchosporium Scald of Rye 41 Rhynchosporium leaf scald — hybrid ryegrass 5

Found in these crops

Barley 220 Triticale 52 Rye 39 Hybrid ryegrass 5 Cocksfoot 2 Italian ryegrass 2 Soybean 1 Italian ryegrass 1 Bread wheat 1

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.

Focus

Active

Hordeum vulgare L. · Barley

SECOBRA RECHERCHES S.A.S

CZ DE DK FI FR UA

22 records

KWS Tonic

Active

Hordeum vulgare L. · Barley

KWS LOCHOW GMBH, DE

AT CZ DE DK FR LU +1

15 records

Danergo

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

DLF-Trifolium (DK)

AT BE DK EE HU LU +1

10 records

Wendy

Active

Hordeum vulgare L. · Barley

Nordsaat Saatzuchtgesellschaft mbH

AT CZ DE FR HU PL +1

12 records

NFC Tipple

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

DE DK FI FR HR LT

17 records

Shuffle

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

AT CZ DE FR SK UA

14 records

KWS Tenor

Active

Hordeum vulgare L. · Barley

KWS Lochow

CZ DE EE HU SK UA

16 records

Joker

Active

Hordeum vulgare L. · Barley

KWS LOCHOW GMBH, DE

DE EE FR LT LV PL

12 records

KWS Rotor

Active

Secale cereale L. · Rye

KWS Lochow

CZ DE DK EE FI PL +1

14 records

SY Signet

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG

CZ DE DK FI LT NL

14 records

Siberia

Active

Hordeum vulgare L. · Barley

SEMUNDO| SW Seed GmbH

DE FR HU IT PL SI

14 records

Propino

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd

DE EE FI FR LT LV

16 records

Lumaco

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Lantmannen SW Seed BV (NL)

AT DE EE FR LT LU

15 records

Sydney

Active

Hordeum vulgare L. · Barley

SAATZUCHT STRENG-ENGELEN GMBH&CO. KG

DE EE LT LU PL

10 records

SU Midnight

Active

Hordeum vulgare L. · Barley

W.von Borries-Eckendorf, D

AT CZ DE PL UA

13 records

Florence

Active

Hordeum vulgare L. · Barley

UNISIGMA

IE LT PL

17 records

Belcanto

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

AT CZ DE LT LU PL

14 records

Leontino

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Rostlin, PL

CZ EE LT LV PL

13 records

Venezia

Active

Hordeum vulgare L. · Barley

Streng Wintergersten GbR

AT CZ DE DK LT PL

12 records

KWS Chilis

Active

Hordeum vulgare L. · Barley

KWS Lochow

AT CZ DE DK EE UA

10 records

SU Karlsson

Active

Secale cereale L. · Rye

HYBRO SAATZUCHT GMBH and CO KG

CZ DE DK FI UA

12 records

SU Erling

Active

Secale cereale L. · Rye

HYBRO SAATZUCHT GMBH and CO KG

AT DE DK PL UA

12 records

LG Campus

Active

Hordeum vulgare L. · Barley

LIMAGRAIN EUROPE

AT CZ DE FR PL

11 records

KWS Tardis

Active

Hordeum vulgare L. · Barley

KWS UK LTD

AT CZ DE FR IE

13 records

1 2 3 4 5 6 7 8 9 10 ... 13 14 Next

Jump to page 6 8 10 12

Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Rust 14 859
Verticillium wilt 12 175
Scab 12 064

All terms →

Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.