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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.

SY Dubaj

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations AG

PL
4 records

Triticum aestivum L. · Bread wheat

ASUR Plant Breeding S.A.S

FR
4 records

Triticum aestivum L. · Bread wheat

ASUR Plant Breeding S.A.S

FR
5 records

Stelarka

Active

Triticum aestivum L. · Bread wheat

Centrum výskumu rastlinnej výroby (CVRV) Pieštany

SK
5 records

Sogood

Terminated

Triticum aestivum L. · Bread wheat

Sogroup (FR)

FR
4 records

Sima

Active

Triticum aestivum L. · Bread wheat

Lietuvos agrarinių ir miškų mokslų centras

LT
4 records

Triticum aestivum L. · Bread wheat

Lietuvos agrarinių ir miškų mokslų centras

LT
4 records

Semnal

Active

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUITTU MARIANAGIURA AUREL

RO
4 records

Rumario

Active

Triticum aestivum L. · Bread wheat

SEMILLAS BATLLE S.A.

GR
3 records

Sarastro

Active

Triticum aestivum L. · Bread wheat

Cultivari Getreidezüchtungsforschung Darzau gGmbH

DE
4 records

Runar

Terminated

Triticum aestivum L. · Bread wheat

Norsk Kornforedling A/S, N-2344 Ilseng

EE
3 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
4 records

Triticum aestivum L. · Bread wheat

RAGT CZECH S.R.O.

SK
4 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
4 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
4 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
4 records

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
4 records

RGT Riff

Terminated

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DE
4 records

Resulton

Active

Triticum aestivum L. · Bread wheat

SEMILLAS BATLLE, S.A.

ES
6 records

Phildor

Active

Triticum aestivum L. · Bread wheat

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

FR
5 records

Pezandor

Active

Triticum aestivum L. · Bread wheat

Unisigma (FR)/Limagrain Europe (FR)

FR
4 records

Pajura

Protection expired

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUITTU MARIANA

RO
4 records

Paindor

Terminated

Triticum aestivum L. · Bread wheat

Unisigma GIE, FR

FR
4 records

Optimist

Withdrawn

Triticum aestivum L. · Bread wheat

LIMAGRAIN NEDERLAND

NL
4 records

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