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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.

Lacerta

Application submitted

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

PL
1 record

Dobirna

Terminated

Triticum aestivum L. · Bread wheat

Luchna Inna Stanislavivna, Usova Zoia Vasylivna, Iodkovskyi Vladislav Zdislavovych, Riabchun Nataliia Ivanivna, Yel`nikov Mykola Ivanovych, Zviahin Andrii Fedorovych,

UA
3 records

Dańkowskie Monet

Application submitted

Secale cereale L. · Rye

Danko Hodowla Roslin Sp.z.o.o.

PL
1 record

Zorianka

Active

Triticum durum Desf. · Durum wheat

Moroz Oleh Vasylovych, Moshenko Mykola Mykolaiovych, Roik Mykola Volodymyrovych,

UA
2 records

ZL70A

Terminated

Helianthus annuus L. · Sunflower

Sereda Valentyna Oleksiivna, Shudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna,

UA
2 records

Triticum aestivum L. · Bread wheat

Marynka Svitlana Mykolaivna, Shelepov Volodymyr Vasyl`ovych, Chebakov Mykola Petrovych, Vlasenko Volodymyr Anatoliiovych, Ulich Oleksandr Leonidovych, Artemchuk Iryna Petrivna, Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylovych,

UA
2 records

x Triticosecale Wittm. ex A. Camus · Triticale

Padalka Olena Ivanivna, Chernobai Serhii Volodymyrovych, Shcechenko Olha IEvheniivna, Melnyk Vira Serhiivna, Kapustina Tetiana Borysivna, Riabchun Viktor Kuzmych,

UA
2 records

Triticum aestivum L. · Bread wheat

Holyk Liubov Mykolaivna, Khomenko Svitlana Olehivna, Remeslo Volodymyr Vasyl`ovych, Dubovyi Volodymyr Ivanovych, Shelepov Volodymyr Vasyl`ovych, Ulich Oleksandr Leonidovych, Artemchuk Iryna Petrivna, Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylo

UA
2 records

Helianthus annuus L. · Sunflower

Posunko Anton Olehovych, Shatsman Dmytro Oleksandrovych,

UA
2 records

Yavoryna

Terminated

Triticum aestivum L. · Bread wheat

Kyrylenko Vira Viktorivna, Kolomiiets` Lidiia Andriivna, Khomenko Svitlana Olehivna, Marynka Svitlana Mykolaivna, Vlasenko Volodymyr Anatoliiovych, Artemchuk Iryna Petrivna, Morhun Volodymyr Vasylovych,

UA
2 records

Yasochka

Terminated

Glycine max (L.) Merr. · Soybean

Scherbyna Oleksandr Zinoviievych, Chernenko IEvhen Viktorovych, Polischuk Svitlana Viktorivna, Tymoshenko Oleksandr Oleksiiovych, Shcerbyna Olena Zinoviivna, Romaniuk Lidiia Serhiivna, Mykhailov Viacheslav Hryhorovych,

UA
2 records

Triticum aestivum L. · Bread wheat

Artemchuk Iryna Petrivna, Morhun Volodymyr Vasylovych, Koliuchyi Vasyl` Trokhymovych, Basanets` Hanna Stepanivna, Khomenko Svitlana Olehivna, Marynka Svitlana Mykolaivna, Shelepov Volodymyr Vasyl`ovych, Kyrylenko Vira Viktorivna, Vlasenko Volodymyr Anatol

UA
2 records

Helianthus annuus L. · Sunflower

Bushulian Oleh Volodymyrovych, Shatsman Dmytro Oleksandrovych,

UA
2 records

Helianthus annuus L. · Sunflower

Posunko Anton Olehovych, Bushulian Oleh Volodymyrovych, Shatsman Dmytro Oleksandrovych,

UA
2 records

Willi

Terminated

Triticum aestivum L. · Bread wheat

Landwirtschaftliche Bundesversuchswirtschaften Ges.m.b.H.

AT
2 records

Zhuravka

Terminated

Triticum aestivum L. · Bread wheat

Lobko Taisiia Kostiantynivna, Pastukh Vasyl` Pavlovych, Berezhna Lidiia Antonivna, Shemavn`ov Volodymyr Illich, Kovalevs`ka Nadiia Ivanivna,

UA
1 record

Yasochka

Active

Phaseolus vulgaris L. · Common bean

Velychko Svitlana Iosyfivna, Koval`chuk Nataliia IAkivna, Holokhorynska Mariia Hryhorivna,

UA
1 record

Veselyk

Terminated

Pisum sativum L. · Pea

Yanivs`kyi Ihor Mykolaiovych, Bodnarenko Klavdiia Borysivna, Ukrainets` Viktor Valentynovych, Kaz`miruk Halyna Fedorivna, Stebnovs`ka Anzhela IAkymivna, Kaliuzhna Emiliia Al`oziivna, Kuz` Vasyl` Volodymyrovych, Rozvadovs`kyi Al`ozii Martynovych,

UA
2 records

Pyrus communis L. · European pear

Matviienko Mykola Vasylovych, Khodakivska IUliia Borysivna, Hrynyk Ihor Volodymyrovych,

UA
2 records

Vakariai

Protection expired

Ribes nigrum L. · Blackcurrant

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

LT
1 record

Vesta

Terminated

Solanum lycopersicum L. · Tomato

Tezier SA (FR)

FR
2 records

Trudivnytsia myronivs`ka

Application submitted

Triticum aestivum L. · Bread wheat

Siroshtan Andrii Anatoliiovych, Yurchenko Tetiana Vasylivna, Derhachov Oleksandr Leonidovych, Volohdina Halyna Borysivna, Zamlila Nina Petrivna, Humeniuk Oleksandr Volodymyrovych, Kyrylenko Vira Viktorivna, Kolomiiets` Lidiia Andriivna, Kochmars`kyi Valen

UA
2 records

Tuluza

Terminated

Triticum aestivum L. · Bread wheat

Kovalov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych, Zhornovyi Serhii Volodymyrovych,

UA
2 records

Tremie

Active

Triticum L. · Wheat

DARROZES GEORGES

IT
1 record

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