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 Italian ryegrass 1 Bread wheat 1 Soybean 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.

Alinghi

Protection expired

Hordeum vulgare L. · Barley

Lochow-Petkus GmbH (DE)

CZ DE FR LT

10 records

Tyra

Active

Hordeum vulgare L. · Barley

Pajbjergfonden

DK FI SE

13 records

Pleiade

Active

Hordeum vulgare L. · Barley

Secobra Recherches, F

AT DE FR

10 records

Riviera

Active

Hordeum vulgare L. · Barley

RAGT SEEDS LTD

BE FR PL

13 records

Ludmilla

Protection expired

Hordeum vulgare L. · Barley

Staatzucht Firlbeck GmbH & Co.KG

AT DE EE

11 records

Chronicle

Active

Hordeum vulgare L. · Barley

Nickerson International Research S.N.C., 63720 Chappes

ES FR LT

9 records

Maltesse

Active

Hordeum vulgare L. · Barley

Secobra, F

CZ FR

11 records

Etincel

Active

Hordeum vulgare L. · Barley

Secobra, F

DE FR

10 records

Atletico

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

CZ DE PL SE

9 records

Bianca

Active

Hordeum vulgare L. · Barley

SAATZUCHT STRENG-ENGELEN GMBH&CO. KG

AT DE DK LU

8 records

Ambrosia

Active

Hordeum vulgare L. · Barley

Saatzucht Donau GmbH & Co.KG

AT DE PL

10 records

Fabio

Active

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

Deutsche Saatveredelung AG, D-59557 Lippstadt

CZ FI LU PL

8 records

SY Arrow

Active

Hordeum vulgare L. · Barley

Syngenta UK Ltd. Dr. Hazel Bull Market Stainton

CZ DE DK FI

7 records

Ramdam

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Agri-Obtentions S.A.

DE FR IT LU

10 records

Alvari

Active

Hordeum vulgare L. · Barley

Reino Aikasalo, Boreal Plant Breeding Ltd

EE FI LT LV

9 records

Teksas

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

LT PL

8 records

SY Kestrel

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG, CH

DE FR HR

9 records

Vivaldi

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Stephanie Franck^^^Peter Franck^^^Norbert Starck

DE EE PL

9 records

Trekker

Active

Hordeum vulgare L. · Barley

Elina Nissilä, Eero Nissilä, Reino Aikasalo, Boreal Plant Breeding Ltd.

EE FI LT

9 records

SY Tennyson

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG, CH

FR HR IE

9 records

Torben

Active

x Triticosecale Wittm. ex A. Camus · Triticale

SAATZUCHT STRENG-ENGELEN GMBH&CO. KG

CZ DE LU

7 records

Sy Loona

Active

Hordeum vulgare L. · Barley

Syngenta Crop Protection AG, CH

DE FR UA

10 records

SU Askadus

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Nordsaat Saatzucht GmbH, Böhnhausen DE

CZ FR HU

9 records

Santos

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

DE EE PL

10 records

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

Jump to page 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.