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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.

Monviso

Active

Triticum aestivum L. · Bread wheat

Secobra Recherches, F

IT
6 records

Liseta

Active

Triticum aestivum L. · Bread wheat

SELGEN A.S

SK
5 records

LG Sundance

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

NL
6 records

LG Spotlight

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

NL
6 records

LG Motown

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

NL
5 records

LG Acorazado

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe S.A.S

ES
7 records

KWS Yaris

Terminated

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK
6 records

KWS Scope

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK
7 records

KWS Equipe

Active

Triticum aestivum L. · Bread wheat

KWS MOMONT RECHERCHE SARL, FR

FR
7 records

LG Albufera

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe S.A.S

ES
6 records

KWS Lili

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

IE
6 records

KWS Kinetic

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK
5 records

KWS Arnie

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK
6 records

KWS Colosseum

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK
6 records

Kvium

Active

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK
5 records

LG Detroit

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

NL
6 records

Lawina

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Rolniczych Nasiona Kobierzyc Sp.z.o.o.

PL
9 records

KWS Siskin

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

BE
5 records

KWS Lumos

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

IE
6 records

KWS Ladum

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

LT
5 records

KWS Giraffe

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

LT
5 records

JB Diego

Active

Triticum aestivum L. · Bread wheat

SAATZUCHT JOSEF BREUN GMBH and CO.KG

IE
6 records

Heerup

Active

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK
5 records

Hereford

Active

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK
9 records

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