Diseases
Erysiphales
Powdery mildew is a fungal disease manifesting as a white web-like coating on plant organs, leading to tissue necrosis, fruit deformation, and significant crop losses.
Mentioned in descriptions 33 570 varieties reference book.
Powdery mildew is caused by ectoparasitic fungi of the order Erysiphales, which develop primarily on the surface of leaves, shoots, and fruits. The initial white web-like coating eventually densifies into "powdery" cushions, upon which fungal fruiting bodies may form as dark spots. As a result of the infection, tissues turn yellow and become necrotic, fruits may crack, and leaves drop prematurely.
The intensity of disease development depends on a complex of factors: high relative humidity, moderate temperatures, the presence of dense canopy, and excessive nitrogen nutrition. Risks increase with alternating dry and wet weather. The harmfulness of the disease is expressed in a reduction of the leaf assimilation area, deterioration of crop quality, and a decrease in the general winter hardiness of crops.
Assessment of variety resistance is conducted under field conditions at various stages of vegetation, most often during the full heading phase. To classify the degree of infection, scoring systems or intensity scales in percentages are used, where varieties with up to 10% infection are considered highly resistant (R), 11 to 40% as moderately resistant (M), and more than 41% as susceptible (S). Variety resistance is ensured by genetic mechanisms that prevent colonization by the pathogen or limit the development of its mycelium.
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
Lytvynenko Raisa Ivanivna, Maksymov Mykola Havrylovych, Parfentiev Mykhailo Hryhorovych, Babaiants Lazar Tyhranovych, Reshetnikova Valentyna Semenivna, Ptashenchuk Oleksandr Mykytovych, Honcharuk Nina Oleksandrivna, Lytvynenko Mykola Antonovych,
Pisum sativum L. · Pea
Vasylenko Antonina Oleksandr, Serdiuk Vira Ivanivna, Lutsenko Mykola Petrovych, Bekorevych Alla Davydivna, Bezuhlyi Ihor Mykolaiovych, Chekryhin Petro Mykheiovych,
Capsicum annuum L. · Bell pepper
Syngenta Crop Protection AG
Pisum sativum L. · Pea
SEMILLAS BATLLE
Hordeum vulgare L. · Barley
Hristo Gorastev, Nevenka Ganusheva, Stoyka Grancharova, Ganka Hristozova
Avena sativa L. · Oat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Cicer arietinum L. · Chickpea
HAO-DEMETER-Fodder Crops and Pastures Institute
Triticum aestivum L. · Bread wheat
Poznanska Hodowla Roslin Sp. z o.o
Triticum aestivum L. · Bread wheat
Vlashcuk Anatolii Mykolaiovych, Biliaieva Iryna Mykolaivna, Zhupyna Andrii IUriiovych, Lavrynenko IUrii Oleksandrovych, Bazalii Halyna Hryhorivna, Usyk Liudmyla Oleksandrivna,
Triticum aestivum L. · Bread wheat
Traskovetska Vita Anatoliivna, Fedchenko Volodymyr Pavlovych, Bosakovska Nataliia IUriivna, Narhan Tetiana Pavlivna, Nakonechnyi Mykola IUriiovych, Yeryniak Mykola Ivanovych, Lyfenko Savelii Pylypovych,
Triticum aestivum L. · Bread wheat
Parfentiev Mykhailo Hryhorovych, Maksymov Mykola Havrylovych, Marinin Liubov Ivanivna, Reshetnikova Valentyna Semenivna, Lytvynenko Raisa Ivanivna, Solomonov Ruslan Viacheslavovych, Holub IEvheniia Anatoliivna, Rubakha Serhii Andriiovych, Honcharuk Nina O
Hordeum vulgare L. · Barley
Huseinov Vali Mamedovych, Vesna Serhii Viktorovych, Naumov Oleksii Hermanovych, Vasko Nataliia Ivanivna, Kozachenko Mykhailo Romanovych,
Hordeum vulgare L. · Barley
Stelmakh Adolf Fomych, Lehkun Ihor Borysovych, Sheremet Oleksandr Martynovych, Linchevskyi Anatolii Adamovych,
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Cucumis sativus L. · Cucumber
Nunhems Netherlands B.V.
Cicer arietinum L. · Chickpea
GENETIC SERVICES S.R.L.
Triticum durum Desf. · Durum wheat
Nesterova Nataliia Havrylivna, Kotelenets` Olena Hryhorivna, Vasyliev Oleksii Anatoliiovych, Parfentiev Mykhailo Hryhorovych, Lytvynenko Mykola Antonovych, Albul Anatolii Oleksiiovych, Palamarchuk Anatolii Ivanovych,
Hordeum vulgare L. · Barley
Kirdohlo IEvhen Kostiantynovych, Sichniak Vira IUkhymivna, Lehkun Ihor Borysovych, Sheremet Oleksandr Martynovych, Linchevskyi Anatolii Adamovych,
Triticum durum Desf. · Durum wheat
MAL'ChIKOV PETR NIKOLAEVICh / MYaSNIKOVA MARINA GERMANOVNA / NATOLI VINCENZO
x Triticosecale Wittm. ex A. Camus · Triticale
AGROVEGETAL, S.A.
Hordeum vulgare L. · Barley
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Avena sativa L. · Oat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Hordeum vulgare L. · Barley
ShEVChENKO SERGEJ NIKOLAEVICh / IL'IN ALEKSEJ VASIL'EVICh / KALININ YuRIJ ALEKSEEVICh / STEPANOVA TAT'YaNA IVANOVNA / ZhELEZNIKOVA VALENTINA ALEKSANDROVNA / ZANChEVSKIJ VLADISLAV VLADIMIROVICh