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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

Wiersum Plantbreeding B.V.

NL
7 records

Vanna

Protection expired

Triticum aestivum L. · Bread wheat

MONSANTO TECHNOLOGY

HR
4 records

Trapez

Terminated

Triticum aestivum L. · Bread wheat

Saatzucht Josef Breun GdbR (DE)

FR
5 records

Tiepolo

Active

Triticum aestivum L. · Bread wheat

S.I.S. SOCIETA' ITALIANA SEMENTI / SYNGENTA FRANCE S.A.S.

IT
7 records

Terroir

Active

Triticum aestivum L. · Bread wheat

Florimond Desprez Veuve et Fils, FR

FR
5 records

SY Loki

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations AG

NL
7 records

Sparrow

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

AT
7 records

RGT Universe

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK
7 records

RGT Talisko

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
5 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK
7 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
5 records

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

DK
5 records

Triticum aestivum L. · Bread wheat

Syngenta UK Ltd

NL
7 records

Reciproc

Active

Triticum aestivum L. · Bread wheat

LEMAIRE DEFFONTAINES S.A.S.

FR
6 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK
6 records

Olympus

Active

Triticum aestivum L. · Bread wheat

DEUTSCHE SAATVEREDELUNG AG

DK
7 records

Paledor

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

FR
6 records

Nutka

Active

Triticum aestivum L. · Bread wheat

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

PL
5 records

Orloge

Active

Triticum aestivum L. · Bread wheat

Saatzucht Josef Breun GmbH & Co.KG (DE)

FR
5 records

Nota

Active

Triticum aestivum L. · Bread wheat

KOLESNIKOV FEDOR ALEKSEEVICh / PUChKOV YuRIJ MIHAJLOVICh / KERIMOV VAGIF RAHMETOVICh / ALFIMOV VLADIMIR ALEKSEEVICh / BESPALOVA LYuDMILA ANDREEVNA / KUDRYaShOV IGOR' NIKOLAEVICh / GORBAN' NINA TIMOFEEVNA / KONOTOP TAT'YaNA VITAL'EVNA / PUZYRNAYa OL'GA YuR

UA
6 records

Ortolan

Active

Triticum aestivum L. · Bread wheat

Florimond Desprez Veuve et Fils, FR

FR
5 records

NS Epoha

Active

Triticum aestivum L. · Bread wheat

Institut za ratarstvo i povrtarstvo, Novi Sad

SI
5 records

Myriad

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

BE
5 records

Monaco

Active

Triticum aestivum L. · Bread wheat

Saatzucht Donau GmbH & Co.KG

AT
9 records

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