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Diseases

Septoria blotch — soft wheat

Triticum aestivum L.

A fungal disease of wheat caused by the pathogens Zymoseptoria tritici and Parastagonospora nodorum. It manifests as leaf spots with pycnidia and is managed through Stb resistance genes.

In the reference 945 varieties crop Bread wheat, where this is mentioned in the description.

The pathogens causing Septoria blotch in soft wheat are the fungi Zymoseptoria tritici, which primarily affects leaves, and Parastagonospora nodorum, which causes lesions on leaves, stems, and spikes. The infection progresses through a prolonged asymptomatic phase, followed by the development of light green to brown spots on the affected tissues. A key diagnostic sign of the disease is the appearance of pycnidia — small black fruiting bodies in the center of the spots.

Genetic resistance of the crop to Septoria blotch is based on the system of Stb genes, such as Stb2, Stb4, Stb6, Stb9, Stb11, and Stb13, which provide juvenile or adult-plant resistance. In breeding programs, the pyramiding of multiple Stb genes is practiced to increase the durability of protection. In the context of interaction with P. nodorum, the sensitivity gene Tsn1 also plays an important role, determining plant susceptibility through interaction with the fungus's necrotrophic effectors.

General information about the subject — on the page Septoria leaf blotch.

Sources8

Varieties of Bread wheat mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Virtuose

Active

Triticum aestivum L. · Bread wheat

L'INSTITUT NATIONAL DE LA

FR
8 records

Torp

Active

Triticum aestivum L. · Bread wheat

Nordic Seed A/S

DK
6 records

SY Passion

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations,CH

FR
6 records

Nufenen

Active

Triticum aestivum L. · Bread wheat

Cécile Brabant

FI
6 records

Montecristo CS

Active

Triticum aestivum L. · Bread wheat

Caussade Semences, F

FR
7 records

Katou

Active

Triticum aestivum L. · Bread wheat

Apsovsementi, I

IT
7 records

FDL Miranda

Active

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUCIURA AURELITTU MARIANAPETCU ELENA

RO
7 records

Winx

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

FI LT
9 records

LG Egmont

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

BE PL UA
7 records

Tallinn

Active

Triticum aestivum L. · Bread wheat

Landwirtschaftliche Lehranstalten Triesdorf

EE LT PL
6 records

Debian

Active

Triticum aestivum L. · Bread wheat

Dieter Stelling

DK LT UA
8 records

KWS Sverre

Active

Triticum aestivum L. · Bread wheat

KWS Lochow

BE DK
8 records

Hexham

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

IE NL
8 records

Matchball

Active

Triticum aestivum L. · Bread wheat

RAGT 2n

PL SK UA
6 records

SY Rocinante

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations,CH

FR IT
8 records

Zeppelin

Active

Triticum aestivum L. · Bread wheat

Syngenta Hadmersleben

EE LT
6 records

Bologna

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations AG| CH

ES HR IT
6 records

Eletta

Active

Triticum aestivum L. · Bread wheat

ISEA S.R.L

IT UA
7 records

BG Adora

Active

Triticum aestivum L. · Bread wheat

Borislav Kobiljski

BG UA
8 records

BG Unigold

Active

Triticum aestivum L. · Bread wheat

UNIGENETIC (BG)

HR UA
7 records

Artek

Active

Triticum aestivum L. · Bread wheat

Apsovsementi, I

HR IT
9 records

KWS Torridon

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

PL
8 records

Glosa

Active

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEGIURA AURELITTU MARIANAMUSTATEA POMPILIU

RO
7 records

Arkadia

Active

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

PL
8 records

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