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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.

Grouse

Withdrawn

Triticum aestivum L. · Bread wheat

Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)

FR
1 record

Gagatai

Terminated

Ribes nigrum L. · Blackcurrant

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

LT
1 record

Glenant

Active

Triticum aestivum L. · Bread wheat

Agri Obtentions SA (FR)/Institut National de la Recherche Agronomique (FR)

FR
1 record

FDN21WW0403

Withdrawn

Triticum aestivum L. · Bread wheat

Florimond Desprez

IT
1 record

Triticum aestivum L. · Bread wheat

FLORIMOND DESPREZ VEUVE ET FILS

ES
1 record

ESCORPION

Withdrawn

Triticum aestivum L. · Bread wheat

CLOVIS MATTON, S.A

ES
1 record

Triticum aestivum L. · Bread wheat

Ihnatovskyi Oleksandr Oleksandrovych, Khodakova Tetiana Mykolaivna, Reshetnikova Valentyna Semenivna, Aleksieienko IEvhenii Viktorovych, Honcharuk Nina Oleksandrivna, Lytvynenko Raisa Ivanivna, Holub IEvheniia Anatoliivna, Lytvynenko Mykola Antonovych,

UA
2 records

Triticum aestivum L. · Bread wheat

Florimond Desprez

IT
1 record

Eksplozja

Application submitted

Triticum aestivum L. · Bread wheat

Poznanska Hodowla Roslin Sp. z o.o

PL
3 records

DINA

Active

Solanum lycopersicum L. · Tomato

HEBREW UNI/HAZERA

ES
1 record

Czieresznewa

Withdrawn

Ribes nigrum L. · Blackcurrant

Institut Sadiwnictwa Ukrainska Akademija Agrarnich Nauk Volodymyr Kopan

PL
2 records

Apium graveolens L. var. rapaceum (Mill.) Gaud. · Celeriac

Domaine Public (FR)

FR
1 record

Triticum aestivum L. · Bread wheat

Kucher Mykola Ivanovych, Bratuschak Serhii Petrovych, Artemchuk Iryna Petrivna, Morhun Volodymyr Vasylovych,

UA
2 records

CICLON

Withdrawn

Triticum aestivum L. · Bread wheat

MAHISSA

ES
2 records

Clairdoc

Protection expired

Triticum durum Desf. · Durum wheat

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
2 records

CA1421

Active

x Triticosecale Wittm. ex A. Camus · Triticale

AGRI OBTENTIONS / INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE (I.N.R.A.)

IT
1 record

CA2150

Active

x Triticosecale Wittm. ex A. Camus · Triticale

AGRI OBTENTIONS / INRAE (institut National de recherche pour l'agriculture, l'alimentation et l'environment)

IT
1 record

Buzhanske

Withdrawn

x Triticosecale Wittm. ex A. Camus · Triticale

Tromsiuk Valentyna Dmytrivna, Bortnovskyi Vitalii Mykolaiovych, Lilyk Tetiana Volodymyrivna, Buhaiov Vasyl Dmytrovych,

UA
2 records

Bergers weisse Kugel

Protection expired

Apium graveolens L. · Celery

HILD SAMEN| Hild Samen GmbH

DE
1 record

Bocquiau

Terminated

Triticum aestivum L. · Bread wheat

Florimond Desprez Veuve et Fils, FR

FR
2 records

Triticum aestivum L. · Bread wheat

Koliuchyi Vasyl` Trokhymovych, Kovalyshyna Hanna Mykolaivna, Siroshtan Andrii Anatoliiovych, Zamlila Nina Petrivna, Volohdina Halyna Borysivna, Humeniuk Oleksandr Volodymyrovych, Kochmarskyi Valentyn Serhiiovych,

UA
2 records

Bramante

Active

Triticum L. · Wheat

SENELLART PATRICE

IT
1 record

Bozhych

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Tromsiuk, Valentyna Buhaiov, Vasyl` Lilyk, Tetiana Bortnovs`kyi, Vitalii

UA
2 records

Biondina

Active

Lactuca sativa L. · Lettuce

Bejo Zaden B.V.

NL
1 record

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