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Diseases

Septoria leaf blotch

Septoria

Septoria leaf blotch is a complex fungal disease of cereal crops, manifesting as leaf and glume blotch, leading to tissue necrosis and yield reduction.

Mentioned in descriptions 4 644 varieties reference book.

The disease is caused by fungi of the genus Septoria and related species, which infect all above-ground parts of plants. Light beige or grey-brown spots form on leaves and stems, and black dots, known as pycnidia, develop on their surface over time. The disease is dangerous in temperate climates with high humidity and frequent rainfall.

Pathogen development depends on weather factors, particularly temperatures in the range of +15…+25 °C and air humidity above 80%. The disease leads to a reduction in the photosynthetic area, grain shriveling, and a decline in baking quality. The level of loss varies from 10–15% in normal years to 50% during epiphytotics.

Varietal resistance is divided into vertical, based on specific Stb genes, and horizontal, which is considered more long-lasting. Horizontal resistance is determined by morphological characteristics: cuticle density, pubescence, the presence of a waxy bloom, and lack of sensitivity to fungal toxins.

Resistance evaluation in variety trials is conducted using infectious-provocative backgrounds, visual assessment of the degree of infection, and laboratory methods, including molecular diagnostics. The obtained data are compared with reference indicators to determine the effectiveness of variety protection under specific conditions.

Sources10

Breakdown by crop

Found in these crops

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

GKH 2624

Application submitted

Brassica napus L. · Rapeseed

Balazh Mikloshne, Varha Iozhefne, Nemetkhne Varha Anna, Falushi IAnosh, Falushi IAnoshne,

UA
1 record

Farvater

Terminated

Glycine max (L.) Merr. · Soybean

Hanzhelo Olha Ivanivna, Lavrova Halyna Dmytrivna, Sichkar V'iacheslav Ivanovych,

UA
2 records

Elite-lepeuple

Protection expired

Triticum aestivum L. · Bread wheat

Fernand Lepleuple (FR)

FR
1 record

Esperia

Active

Triticum L. · Wheat

BORASIO ERCOLE

IT
1 record

Diana

Active

Triticum durum Desf. · Durum wheat

Fedchenko Hanna Vasylivna, Kavunets` Valerii Petrovych, Marynka Svitlana Volodymyrivna, Khomenko Svitlana Olehivna, Vlasenko Volodymyr Anatoliiovych, Solona Valentyna Iosypivna, Kochmarskyi Valentyn Serhiiovych,

UA
2 records

x Triticosecale Wittm. ex A. Camus · Triticale

Leonov Oleh IUriiovych, Shcechenko Olha IEvheniivna, Zymohliad Oleksii Viktorovych, Melnyk Vira Serhiivna, Kapustina Tetiana Borysivna, Shatokhin Volodymyr Ivanovych, Riabchun Viktor Kuzmych,

UA
2 records

Chorniava

Terminated

Triticum aestivum L. · Bread wheat

Artemchuk Iryna Petrivna, Morhun Volodymyr Vasylovych,

UA
2 records

Capo

Active

Triticum aestivum L. subsp. aestivum · Bread wheat

Fritz Mauthner HandelsgesellschaftmbH & Co KG

AT
1 record

Borysfen

Terminated

Hordeum vulgare L. · Barley

Kuz`menko Halyna Iosypivna, Vlasenko Volodymyr Anatoliiovych, Shubenko Nadiia Petrivna, Shubenko Ivan Andriiovych,

UA
2 records

x Triticosecale Wittm. ex A. Camus · Triticale

Il`ichov Oleh Henadiiovych, Leonov Oleh IUriiovych, Zymohliad Oleksii Viktorovych, Schechenko Ol`ha IEvhenivna, Melnyk Vira Serhiivna, Kapustina Tetiana Borysivna, Riabchun Viktor Kuz`movych,

UA
2 records

Antalis

Active

Triticum aestivum L. · Bread wheat

Nickerson International Research geie, FR

FR
3 records

Almaznyi

Active

Triticum durum Desf. · Durum wheat

Nesterova Natalia Hryhorivna, Molodchenkova Olha Olehivna, Babaiants Olha Vadymivna, Rybalka Oleksandr Illich, Kozlov Viktor Volodymyrovych, Lytvynenko Mykola Antonovych, Albul Anatolii Oleksiiovych, Palamarchuk Anatolii Ivanovych,

UA
4 records

Ananke

Withdrawn

Secale cereale L. · Rye

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
1 record

Zdar

Terminated

Triticum aestivum L. · Bread wheat

SK
2 records

Tuareg

Terminated

Triticum aestivum L. subsp. aestivum · Bread wheat

DE
1 record

Ribes rubrum L. · Redcurrant

UA
1 record

TAMBOR

Terminated

Pisum sativum L. · Pea

DK
1 record

Tapiruz

Active

Triticum turgidum L. subsp. dicoccum (Schrank ex Schübl.) Thell. · Emmer

CZ
1 record

Tristar

Withdrawn

Triticum aestivum L. · Bread wheat

EE
1 record

Tivaz

Active

Glycine max (L.) Merr. · Soybean

UA
2 records

SJ SALK

Application submitted

Triticum aestivum L. · Bread wheat

DK
1 record

Oxfordi

Protection expired

Digitalis lanata Ehrh. · Grecian foxglove

HU
2 records

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