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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.

Raffles

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

IE
7 records

Remax

Active

Triticum aestivum L. · Bread wheat

Florimond Desprez Veuve et Fils, FR

ES FR
5 records

Numeric

Active

Triticum aestivum L. · Bread wheat

LEMAIRE DEFFONTAINES SEMENCES

FR IT
4 records

Penta

Terminated

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK LT
6 records

Nimbus

Terminated

Triticum aestivum L. · Bread wheat

Tina Henriksson

SE
5 records

Najia

Active

Triticum aestivum L. · Bread wheat

Florimond Desprez Veuve et Fils, FR

ES FR
5 records

Megan

Active

Triticum aestivum L. · Bread wheat

SELGEN A.S

UA
6 records

Madicken

Active

Triticum aestivum L. · Bread wheat

Lantmaennen ek foer

LT SE
6 records

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK
8 records

Lear

Active

Triticum aestivum L. · Bread wheat

Nickerson International Research S.N.C.

NL
8 records

Triticum aestivum L. · Bread wheat

Caussade Semences SA (FR)

FR IT
7 records

Triticum aestivum L. · Bread wheat

KWS MOMONT RECHERCHE SARL, FR

FR NL
7 records

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK
7 records

Kovas DS

Active

Triticum aestivum L. · Bread wheat

Lietuvos agrarinių ir miškų mokslų centras

EE LT
5 records

Lg Anouk

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe S.A.S

FR IT
8 records

Kaltop

Terminated

Triticum aestivum L. · Bread wheat

SCA ADRIEN MOMONT & FILS

FR LT
5 records

Komfort

Protection expired

Triticum aestivum L. · Bread wheat

PLANT BREEDING INTERNATIONAL CAMBRIDGE

AT DK
6 records

Triticum aestivum L. · Bread wheat

KWS UK LTD

SE
8 records

KWS Erasmus

Terminated

Triticum aestivum L. · Bread wheat

Erhard Ebmeyer^^^Reiner Bothe

NL
6 records

Triticum aestivum L. · Bread wheat

KWS UK LTD

DK IE
6 records

Futurum

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

UA
6 records

Govelino

Active

Triticum aestivum L. · Bread wheat

Gesellschaft für goetheanistische Forschung e.V.

LU
5 records

Godzilla

Active

Triticum aestivum L. · Bread wheat

Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)

FR IT
6 records

Gerry

Active

Triticum aestivum L. · Bread wheat

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

ES FR
5 records

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