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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.

Triticum aestivum L. · Bread wheat

Boreal Plant Breeding

FI SE
5 records

Cayenne

Active

Triticum aestivum L. · Bread wheat

Strube Research GmbH&Co KG

NL
4 records

RGT Djoko

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2n, FR

FR
3 records

STR Pace

Active

Triticum aestivum L. · Bread wheat

Strube Research GmbH&Co KG

DE
4 records

Triticum aestivum L. · Bread wheat

RAGT 2n

ES
4 records

RGT Frenezio

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2n, FR

FR
3 records

Triticum aestivum L. · Bread wheat

RAGT 2n

ES
4 records

Marcheval

Terminated

Triticum aestivum L. · Bread wheat

Ets Claude Camille Benoist SA (FR)

FR
5 records

Holster

Application submitted

Triticum aestivum L. · Bread wheat

Limagrain UK

DK
5 records

LG Cies

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN IBERICA, S.A.

ES
3 records

Biancor

Terminated

Triticum aestivum L. · Bread wheat

Unisigma GIE (FR)/Advanta Belgium (BE)

FR
4 records

KWS Cashel

Terminated

Triticum aestivum L. · Bread wheat

KWS UK LTD

4 records

Triticum aestivum L. · Bread wheat

Wiersum Plantbreeding B.V. (NL)

FR
4 records

Voinic

Active

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUITTU MARIANAMARINCIU CRISTINA MIHAELASERBAN GABRIELA

RO
4 records

Venta DS

Active

Triticum aestivum L. · Bread wheat

Lietuvos agrarinių ir miškų mokslų centras

LT
4 records

Venecja

Active

Triticum aestivum L. · Bread wheat

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

PL
4 records

Triticum aestivum L. · Bread wheat

Lietuvos agrarinių ir miškų mokslų centras

LT
4 records

Tobias

Active

Triticum aestivum L. · Bread wheat

Saatzucht Donau GmbH & Co.KG

AT
4 records

Tercie

Active

Triticum aestivum L. · Bread wheat

SELGEN A.S

CZ
5 records

Tentation

Terminated

Triticum aestivum L. · Bread wheat

LEMAIRE DEFFONTAINES S.A.S.

FR
4 records

Tengri

Active

Triticum aestivum L. · Bread wheat

Getreidezüchtung Peter Kunz Peter Kunz

DE
4 records

Triticum aestivum L. · Bread wheat

Syngenta Participations AG

PL
4 records

Triticum aestivum L. · Bread wheat

Unisigma G.I.E., Limagrain Europe S.A.S.

FR
4 records

Triticum aestivum L. · Bread wheat

Syngenta Participations AG| CH

FR
4 records

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