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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.

Simnic 30

Protection expired

Triticum aestivum L. · Bread wheat

RO
3 records

Isabel

Terminated

Triticum aestivum L. · Bread wheat

IT
3 records

Avuno

Active

Triticum aestivum L. · Bread wheat

RO
3 records

Zlatna Dolina

Terminated

Triticum aestivum L. · Bread wheat

HR SK
2 records

Super Zlatna

Terminated

Triticum aestivum L. · Bread wheat

HR SK
2 records

Faustina

Terminated

Triticum aestivum L. · Bread wheat

SK
3 records

Anatoliia

Active

Triticum aestivum L. · Bread wheat

UA
3 records

Torre

Terminated

Triticum aestivum L. · Bread wheat

IT
2 records

Wilhelm SZS

Active

Triticum aestivum L. · Bread wheat

DE
2 records

Primorka

Active

Triticum aestivum L. · Bread wheat

SI
2 records

Mandub

Terminated

Triticum aestivum L. · Bread wheat

DE
2 records

Liberta

Terminated

Triticum aestivum L. · Bread wheat

Bc Institut d.d. Zagreb (HR)

HR
2 records

Grannosos

Active

Triticum aestivum L. · Bread wheat

DE
2 records

Curier

Active

Triticum aestivum L. · Bread wheat

DE
2 records

Castado

Active

Triticum aestivum L. · Bread wheat

DE
2 records

Svitava

Terminated

Triticum aestivum L. · Bread wheat

CZ
2 records

Markola

Protection expired

Triticum aestivum L. · Bread wheat

SK
3 records

Sonate

Withdrawn

Triticum aestivum L. · Bread wheat

Sogroup (FR)

FR
1 record

Zorianka

Terminated

Triticum aestivum L. · Bread wheat

Havryliuk Mykola Mykytovych, Oksom Volodymyr Polikarpovych, Morhun Volodymyr Vasylovych,

UA
2 records

Stritens`ka

Terminated

Triticum aestivum L. · Bread wheat

Oksom Volodymyr Polikarpovych, Morhun Bohdan Volodymyrovych, Katerynchuk Oleksandr Mykhailovych, Morhun Volodymyr Vasylovych,

UA
2 records

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