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.
Helianthus annuus L. · Sunflower
Meszaros Laszlo / Piszker Zoltan / Walcz Ilona / Takacs Laszlo
Triticum aestivum L. · Bread wheat
Chaika Anatolii Mykolaiovych, Dubova Oksana Anatoliivna, Burdeniuk-Tarasevych Larysa Antonivna,
Triticum aestivum L. · Bread wheat
Dvorets`kyi Volodymyr Frantsevych, Vozhehova Raisa Anatolivna, Usyk Liudmyla Oleksandrivna, Orliuk Anatolii Pavlovych,
Triticum aestivum L. · Bread wheat
Mukha Tetiana Ivanivna, Siroshtan Andrii Anatoliiovych, Zamlila Nina Petrivna, Volohdina Halyna Borysivna, Humeniuk Oleksandr Volodymyrovych, Kochmarskyi Valentyn Serhiiovych,
Triticum aestivum L. · Bread wheat
Babaiants Lazar Tihranovych, Parfient`iev Mykhailo Hryhorovych, Ziatiuk Mariia IAkivna, Kostiuk Stanislav Vasyl`ovych, Ptashenchuk Oleksandr Mykytovych, Musich Volodymyr Mykolaiovych, Lytvynenko Mykola Antonovych,
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
Serasem, FR
Hordeum vulgare L. · Barley
Tomcsanyi Andras / Horvathne Palagyi Livia / Romanne Nigo Aniko / Keppel Tiborne / Zsolnai Antalne
Triticum L. · Wheat
BORASIO ERCOLE
Hordeum vulgare L. · Barley
Dvorska Svitlana Volodymyrivna, Buniak Nataliia Mykhailivna, Buniak Nataliia Mykolaivna, Sardak Mariia Ivanivna, Sardak Mykrla Oleksiiovych,
Triticum aestivum L. · Bread wheat
Lytus Mykola Volodymyrovych, Vlasova Nataliia Anatoliivna, Ukrainets` Serhii Vasyl`ovych, Zaika IEvhenii Viktorovych, Shtakal Mykola Ivanovych, Tkachova Nataliia Andriivna, Holyk Liubov Mykolaivna, Buriak Vasyl` IUkhymovych, Starychenko Vasyl Mykolaiovych
Triticum durum Desf. · Durum wheat
Fedchenko Hanna Vasylivna, Kavunets` Valerii Petrovych, Marynka Svitlana Volodymyrivna, Khomenko Svitlana Olehivna, Vlasenko Volodymyr Anatoliiovych, Solona Valentyna Iosypivna, Kochmarskyi Valentyn Serhiiovych,
Triticum turgidum L. subsp. dicoccum (Schrank ex Schübl.) Thell. · Emmer
CREA-CENTRO DI RICERCA INGEGNERIA E TRASFORMAZIONI AGROALIMENTARI (CREA-IT-RM)
x Triticosecale Wittm. ex A. Camus · Triticale
Leonov Oleh IUriiovych, Shcechenko Olha IEvheniivna, Zymohliad Oleksii Viktorovych, Melnyk Vira Serhiivna, Kapustina Tetiana Borysivna, Shatokhin Volodymyr Ivanovych, Riabchun Viktor Kuzmych,
Triticum aestivum L. · Bread wheat
Artemchuk Iryna Petrivna, Morhun Volodymyr Vasylovych,
Triticum aestivum L. · Bread wheat
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Triticum aestivum L. subsp. aestivum · Bread wheat
Fritz Mauthner HandelsgesellschaftmbH & Co KG
x Triticosecale Wittm. ex A. Camus · Triticale
Shchechenko Olha Yevheniivna, Melnyk Vira Serhiivna, Riabchun Viktor Kuzmych, Chernobai Serhii Volodymyrovych, Kapustina Tetiana Borysivna
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Hordeum vulgare L. · Barley
Kuz`menko Halyna Iosypivna, Vlasenko Volodymyr Anatoliiovych, Shubenko Nadiia Petrivna, Shubenko Ivan Andriiovych,
x Triticosecale Wittm. ex A. Camus · Triticale
Il`ichov Oleh Henadiiovych, Leonov Oleh IUriiovych, Zymohliad Oleksii Viktorovych, Schechenko Ol`ha IEvhenivna, Melnyk Vira Serhiivna, Kapustina Tetiana Borysivna, Riabchun Viktor Kuz`movych,
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
Hordeum vulgare L. · Barley
Betsenko Liudmyla Bronislavivna, Korniichuk Oleksandr Vasylovych, Doroshcuk Vasyl Oleksiiovych,
Avena sativa L. · Oat
Liashcenko Oleksandr Ivanovych, Yavdoshcenko Mykola Petrovych, Solodushko Mykola Mykolaiovych, Solodushko Vira Pylypivna,