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.

Zenit

Active

Triticum L. · Wheat

BORASIO ERCOLE

1 record

Yalita

Application submitted

Triticum aestivum L. · Bread wheat

Shcypak, Hennadii Matviiets, Volodymyr Maliienko, Mykola Shcypak, Vasyl Vasylovych Shcypak, Vasyl Hennadiiovych

2 records

Zoria laniv

Active

Triticum aestivum L. · Bread wheat

Makarenko Nataliia Mykolaivna, Chaika Anatolii Mykolaiovych, Dubova Oksana Anatoliivna, Burdeniuk-Tarasevych Larysa Antonivna,

2 records

Zhaklin

Active

Glycine max (L.) Merr. · Soybean

BOLBOTENKO NADIIA OLEKSANDRIVNA, ROMANIUK LIDIIA SERHIIVNA, SHCHERBYNA OLENA ZINOVIIVNA, TYMOSHENKO OLEKSANDR OLEKSIIOVYCH, POLISHCHUK SVITLANA VIKTORIVNA, SHOSTAK NATALIIA OLEKSANDRIVNA, MYKHAILOV VIACHESLAV HRYHOROVYCH

2 records

Vihen

Terminated

Triticum aestivum L. · Bread wheat

Bosakovs`kaia Nataliia IUriivna, Nakonechnyi Mykola IUriiovych, Narhan Tetiana Pavlivna, Fedchenko Volodymyr Ivanovych, Motsnyi Ivan Ivanovych, Yeryniak Mykola Ivanovych, Lyfenko Savelii Pylypovych,

2 records

Valensia poltavska

Application submitted

Triticum aestivum L. · Bread wheat

Poltavskyi derzhavnyi ahrarnyi universytet

2 records

Trendi

Terminated

Pisum sativum L. · Pea

ROMAN TYLLER

1 record

Trudivnytsia

Terminated

Triticum aestivum L. · Bread wheat

Oks`om Volodymyr Polikarpovych, Morhun Volodymyr Vasyl`ovych, Morhun Volodymyr Vasyl`ovych,

2 records

Tarasivs`ka ostysta

Terminated

Triticum aestivum L. · Bread wheat

Shevchenko Nina Oleksandrivna, Churakova Nadiia Kostiantynivna, Zorenko Oleksandr Anatoliiovych, Fomenko Maryna Anatoliivna, Chuhuievs`ka Svitlana Valeriivna, Klinkova Tamara Oleksiivna, Hrabovets` Anatolii Ivanovych,

1 record

Svevo

Active

Triticum L. · Wheat

BORASIO ERCOLE

1 record

Spivanka Polis`ka

Active

Triticum aestivum L. · Bread wheat

Lytus Mykola Volodymyrovych, Hirko Oleksandr Volodymyrovych, Klymenko Iryna Ivanivna, Zaika IEvhenii Viktorovych, Tkachova Natalia Andriivna, Holyk Liubov Mykolaivna, Starychenko Vasyl Mykolaiovych,

2 records

Simkoda myronivs`ka

Active

Triticum aestivum L. · Bread wheat

Lozins`ka Tetiana Pavlivna, Kovalyshyna Hanna Mykolaivna, Kavunets` Valerii Petrovych, Khomenko Svitlana Olehivna, Zvarun Tetiana Volodymyrivna, Fedchenko Hanna Vasylivna, Solona Valentyna Iosypivna, Kochmarskyi Valentyn Serhiiovych, Vlasenko Volodymyr An

2 records

Romashka

Active

Glycine max (L.) Merr. · Soybean

Sichkar Viacheslav Ivanovych, Babych Anatolii Oleksandrovych, Savranchuk Volodymyr Viktorovych, Sukharieva Melaniia Dmytrivna, Medvedieva Liudmyla Romanivna,

2 records

Shestyzerna

Active

Triticum aestivum L. · Bread wheat

ARTIUSHENKO NATALIIA, ARTIUSHENKO PETRO, ARTIUSHENKO ARTEM, ARTIUSHENKO IULIIA

2 records

Sagittario

Active

Triticum L. · Wheat

BORASIO ERCOLE

1 record

Roksolana

Active

Triticum aestivum L. · Bread wheat

Orliuk Anatolii Pavlovych, Lazer Petro Nartsysovych, Yokich Drahan Radomyrovych, Zhuzha Oleksandr Dmytrovych, Honcharova Kapitalina V'iacheslavivna, Bazalii Halyna Hryhorovna, Bazalii Valerii Vasyl`ovych,

2 records

Poltavchanka

Terminated

Triticum aestivum L. · Bread wheat

Hladilina Tetiana Volodymyrivna, Kotelevs`kyi IUrii Oleksandrovych, Snytko Valerii IAkovych, Batashova Mariia IEvhenivna, Tyshcenko Volodymyr Mykolaiovych,

2 records

Pryma Unavy

Active

Triticum durum Desf. · Durum wheat

Shcypak Vasyl Hennadiiovych, Sviatchenko Serhii Ivanovych, Shcypak Hennadii Vasylovych, Maliienko Mykola Vasylovych,

2 records

Polisianka

Terminated

Triticum aestivum L. · Bread wheat

Lytus Mykola Volodymyrovych, Vlasova Nataliia Anatoliivna, Zaika IEvhenii Viktorovych, Kovalchuk Serhii Oleksandrovych, Ukrainets` Serhii Vasyl`ovych, Klymenko Iryna Ivanivna, Hirko Oleksandr Volodymyrovych, Shtakal Mykola Ivanovych, Holyk Liubov Mykolaiv

2 records

Pani Olia

Terminated

Triticum aestivum L. · Bread wheat

Zalohina-Kyrkelan Mariia Anatoliivna, Ternovyi Kyrylo Petrovych, Traskovetska Vita Anatoliivna, Babaiants Lazar Tihranovych, Babaiants Olha Vadymivna,

2 records

Oksamyt myronivs`kyi

Active

Triticum aestivum L. · Bread wheat

Kharchenko Mykhailo Volodymyrovych, Suddenko Vladyslav IUriiovych, Murashko Liudmyla Anatoliivna, Vlasenko Volodymyr Anatoliiovych, Fedorenko Iryna Viktorivna, Solona Valentyna Iosypivna, Khomenko Svitlana Olehivna, Demydov Oleksandr Anatoliiovych,

2 records

Oberih Myronivs`kyi

Terminated

Triticum aestivum L. · Bread wheat

Humeniuk Oleksandr Volodymyrovych, Holyk Liubov Mykolaivna, Koliuchyi Vasyl` Trokhymovych, Kovalyshyna Hanna Mykolaivna, Basanets` Hanna Stepanivna, Kavunets` Valerii Petrovych, Derhachov Oleksandr Leonidovych, Kyrylenko Vira Viktorivna, Kochmarskyi Valen

2 records

Nazym

Application submitted

Triticum durum Desf. · Durum wheat

Silskohospodarske tovarystvo z obmezhenoiu vidpovidalnistiu «Peremoha» (STOV «Peremoha»)

2 records

Muza bilotserkivs`ka

Active

Triticum aestivum L. · Bread wheat

Zhelevs`ka Lidiia Volodymyrivna, Chaika Anatolii Mykolaiovych, Dubova Oksana Anatoliivna, Burdeniuk-Tarasevych Larysa Antonivna,

2 records

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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.