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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.

Triticum aestivum L. · Bread wheat

Parfeniuk Alla Ivanivna, Lisovyi Mykhailo Pavlovych, Dubyna Larysa Viktorivna, Vlasenko Volodymyr Anatoliiovych, Kolomiiets` Lidiia Andriivna, Zhyvotkov Leonid Oleksandrovych, Shelepov Volodymyr Vasyl`ovych,

UA
2 records

Lukull

Withdrawn

Triticum aestivum L. subsp. aestivum · Bread wheat

HADMERSLEBEN| Syngenta Hadmersleben GmbH

DE
1 record

LG Absolu

Withdrawn

Triticum aestivum L. · Bread wheat

Limagrain Europe, FR

FR
1 record

Triticum aestivum L. · Bread wheat

Nina Pfeiffer, Erhard Ebmeyer

UA
2 records

Lehenda Myronivs`ka

Protection expired

Triticum aestivum L. · Bread wheat

Kovalyshyna Hanna Mykolaivna, Kavunets` Valerii Petrovych, Koliuchyi Vasyl` Trokhymovych, Humeniuk Oleksandr Volodymyrovych, Marynka Svitlana Mykolaivna, Khomenko Svitlana Olehivna, Basanets` Hanna Stepanivna, Kyrylenko Vira Viktorivna, Kochmarskyi Valent

UA
2 records

KURIER

Terminated

Triticum aestivum L. · Bread wheat

AGR. LIC. JÖRGEN LÖHDE C/O SV. WEIB.

DK
2 records

Krutians`kyi

Terminated

Lactuca sativa L. var. crispa L. · Leaf lettuce

Horova Tamara Korniivna, Khareba Olena Vasylivna, Pozniak Oleksandr Vasyl`ovych, Kondratenko Serhii Ivanovych, Nesyn Volodymyr Mykolaiovych, Korniienko Serhii Ivanovych, Tkalych IUrii Vadymovych,

UA
2 records

Lemona

Active

Melissa officinalis L. · Lemon balm

Brigitte Mikus-Plescher in Fa. PHARMAPLANT GmbH

DE
1 record

Kotyhoroshko

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Kovalchuk Serhii Oleksandrovych, Hirko Oleksandr Volodymyrovych, Holyk Liubov Mykolaivna, Kyryl`chuk Anzhela Mykolaivna, Starychenko Vasyl Mykolaiovych,

UA
2 records

Triticum aestivum L. · Bread wheat

Yefremenkova Vira Ivanivna, Vasil`ieva Hanna Mykhailivna, Fomenko Nina Patelieievna, Vorobiova Raisa Ahafonivna, Shurovenkova Liudmyla Ivanivna, Kudriashov Ihor Mykolaiovych, Bespalova Liudmyla Andriivna, Soliarek Taisiia Fedorivna, Nabokov Henadii Dmytro

UA
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. subsp. aestivum · Bread wheat

Kärntner Saatbau e.Gen.

AT
1 record

Kirena

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,

UA
2 records

Ribes nigrum L. · Blackcurrant

Institut Sadiwnictwa Ukrainska Akademija Agrarnich Nauk Volodymyr Kopan

PL
2 records

Khutorianka

Protection expired

Triticum aestivum L. · Bread wheat

Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylovych, Ulich Oleksandr Leonidovych, Ulich Leonid Isakovych,

UA
2 records

Khmel`nychanka

Terminated

Triticum aestivum L. · Bread wheat

Dolezhal IAn, Artemchuk Iryna Petrivna, Morhun Volodymyr Vasylovych,

UA
1 record

Hrom

Application submitted

Triticum aestivum L. · Bread wheat

Fomenko Nina Panteleivna, Alfimov Volodymyr Oleksiiovych, Filobok Leontii Petrovych, Bukreieva Halyna Ivanivna, Kerymov Vahif Rakhmetovych, Kudriashov Ihor Mykolaiovych, Novikov Oleksii Volodymyrovych, Davoian Rumyk Ohanesovych, Puzyrna Ol`ha IUriivna, Be

UA
2 records

Jabłkowy GOF

Terminated

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

PlantiCo Hodowla i Nasiennictwo Ogrodnicze Golebiew sp. z o.o.

PL
1 record

Triticum aestivum L. · Bread wheat

Kuzmenko Larysa Anatoliivna, Huba Iryna Ivanivna, Levchenko Olha Serhiivna, Shtakal Mykola Ivanovych, Kaminskyi Viktor Frantsevych, Holyk Liubov Mykolaivna,

UA
2 records

Ribes uva-crispa L. · Gooseberry

Information not available - Contact NL authorities

NL
1 record

Triticum aestivum L. · Bread wheat

Lazer Petro Nartsysovych, Yokich Drahan Radomyrovych, Zhuzha Oleksandr Dmytrovych, Honcharova Kapitalina V'iacheslavivna, Babenko Dmytro Viktorovych,

UA
2 records

Hana

Protection expired

Triticum aestivum L. subsp. aestivum · Bread wheat

PLANT SELECT, spol. s r.o. (CZ)/Zemědělský výzkumný ústav Kroměříž, s.r.o. (CZ)/Národní centrum zemědělského a potravinářského výzkumu, v. v. i. (CZ)

CZ
2 records

GUARANI

Terminated

Triticum aestivum L. · Bread wheat

FLORIMOND DESPREZ,S.A.

ES
2 records

Heurtebise

Protection expired

Triticum aestivum L. · Bread wheat

Andre Blondeau Semences (FR)

FR
1 record

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