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

Bread wheat 933 Triticale 143 Durum wheat 127 Oat 30 Rye 26 Celeriac 25 Sunflower 23 Soybean 22 Gooseberry 21 Barley 20 Celery 16 Spelt 16

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.

RGT SILVERSURFER

Active

Triticum aestivum L. · Bread wheat

RAGT 2n

3 records

Rapidena

Active

Avena sativa L. · Oat

SEMILLAS BATLLE, S.A.

3 records

Rassvet

Active

Triticum aestivum L. · Bread wheat

RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NAN BELARUSI PO ZEMLEDELIYU»

4 records

Queens

Active

Triticum aestivum L. · Bread wheat

Poznanska Hodowla Roslin Sp. z o.o

4 records

Polidis

Application submitted

Triticum aestivum L. · Bread wheat

Lidea France SAS, FR

2 records

Plein blanc doré Barbier

Terminated

Apium graveolens L. var. dulce (Mill.) Pers. · Celery

Domaine Public (FR)

2 records

Pokusa

Active

Triticum aestivum L. · Bread wheat

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

5 records

Pedroso

Active

Triticum durum Desf. · Durum wheat

SEMILLAS BATLLE, S.A.

3 records

Ola

Active

Ribes nigrum L. · Blackcurrant

Maa- ja elintarviketaouden tutkimuskeskus (MTT)/ Present Luonnonvarakeskus (Luke))

2 records

Oktava odes`ka

Active

Triticum aestivum L. · Bread wheat

Babaiants Ol`ha Vadymivna, Syvolap IUrii Mykhailovych, Reshetnikova Valentyna Semenivna, Solomonov Ruslan Viacheslavovych, Lytvynenko Raisa Ivanivna, Rubakha Serhii Andriiovych, Holub IEvheniia Anatoliivna, Honcharuk Nina Oleksandrivna, Topal Mykola Mykol

3 records

NS H 556

Active

Helianthus annuus L. · Sunflower

Dusanic Nenad, Miklic Vladimir, Miladinovic Dragana, Malidza Goran, Cvejic Sandra, Jocic Sinisa,

3 records

Okhtyrchanka iuvileina

Active

Triticum aestivum L. · Bread wheat

Nedozim Andrii IUriiovych, Panov Oleksandr Ihorovych, Vlasenko Svitlana Volodymyrivna, Ivanov IUrii Mykolaiovych,

5 records

Neo

Application submitted

Hordeum vulgare L. · Barley

InterGrain Pty Ltd

2 records

NS H 2652

Active

Helianthus annuus L. · Sunflower

Miklic Vladimir, Dusanic Nenad, Malidza Goran, Cvejic Sandra, Jocic Sinisa,

3 records

Nyva odes`ka

Terminated

Triticum aestivum L. · Bread wheat

Rybalka Oleksandr Illich, Babaiants Lazar Tihranovych, Reshetnikova Valentyna Semenivna, Kostiuk Stanislav Vasyl`ovych, Holub IEvheniia Anatoliivna, Rubakha Serhii Andriiovych, Lytvynenko Raisa Ivanivna, Honcharuk Nina Oleksandrivna, Lytvynenko Mykola Ant

3 records

Nixon

Active

Triticum aestivum L. · Bread wheat

Oregon State University

2 records

Mudrist` odes`ka

Active

Triticum aestivum L. · Bread wheat

Rybalka Oleksandr Illich, Babaiants Lazar Tihranovych, Reshetnikova Valentyna Semenivna, Solomonov Ruslan V'iacheslavovych, Maksymov Mykola Havrylovych, Holub IEvheniia Anatoliivna, Rubakha Serhii Andriiovych, Lytvynenko Raisa Ivannivna, Honcharuk Nina Ol

3 records

MIP Valensiia

Active

Triticum aestivum L. · Bread wheat

Siroshtan Andrii Anatoliiovych, Siroshtan Andrii Anatoliiovych, Dubovyk Nataliia Serhiivna, Khomenko Svitlana Olehivna, Derhachov Oleksandr Leonidovych, Zamlila Nina Petrivna, Kolomiiets` Lidiia Andriivna, Yurchenko Tetiana Vasylivna, Kyrylenko Vira Vikto

3 records

MHR Gamora

Active

Triticum aestivum L. · Bread wheat

Malopolska Hodowla Roslin Spolka z o.o.

2 records

Myrliena

Active

Triticum aestivum L. · Bread wheat

Artemchuk Iryna Petrivna, Morhun Volodymyr Vasylovych, Kovalyshyna Hanna Mykolaivna, Koliuchyi Vasyl` Trokhymovych, Dubovyi Volodymyr Ivanovych, Kolomiiets` Lidiia Andriivna, Zamlila Nina Petrivna, Volohdina Halyna Borysivna, Cheremkha Olena Maksymivna,

3 records

Melodiia odes`ka

Terminated

Triticum aestivum L. · Bread wheat

Parfentiev Mykhailo Hryhorovych, Babaiants Lazar Tihranovych, Reshetnikova Valentyna Semenivna, Solomonov Ruslan Viacheslavovych, Holub IEvheniia Anatoliivna, Rubakha Serhii Andriiovych, Lytvynenko Raisa Ivanivna, Honcharuk Nina Oleksandrivna, Lytvynenko

3 records

MANTECOSA_ALEXANDRE_LUCAS

Active

Pyrus communis L. · European pear

3 records

MARIS ENSIGN

Terminated

Triticum aestivum L. · Bread wheat

PLANT BREEDING INTERNATIONAL CAMBRIDGE

4 records

MARIS TEMPLAR

Terminated

Triticum aestivum L. · Bread wheat

Plant Breeding International Cambridge Ltd (GB)

3 records

1 2 ... 41 42 43 44 45 46 47 ... 64 65 Next

Jump to page 9 19 28 34 37 54 56

Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Rust 14 859
Verticillium wilt 12 175
Scab 12 064

All terms →

Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.