Diseases
Root rots are a complex of soil-borne fungal diseases affecting the underground part and the basal zone of plants. The infection manifests latently and leads to a 15–40% reduction in crop productivity.
Mentioned in descriptions 5 232 varieties reference book.
Root rots represent a group of pathologies affecting roots, tillering nodes, and underground internodes. The disease manifests as stand thinning, necrosis and browning of the root system, as well as the appearance of brown spots, streaks, and coatings on the basal part of the stem. External signs are often hidden and masked as nutrient deficiencies or winterkill, which is expressed in plant stunting, stem breakage, empty ears, and shriveled grain.
Disease development depends on a combination of abiotic factors and agronomic conditions. The infection actively progresses under excessive soil moisture, crop rotation violations, monoculture cropping, and the use of infected seed material. Mineral nutrient imbalance, especially potassium and phosphorus deficiency combined with nitrogen excess, reduces the natural immunity of plants, creating favorable conditions for pathogen activity across a wide temperature range.
In breeding practice, resistance to rots is often defined as tolerance—the ability of a plant to maintain productivity when infected. Variety evaluation is conducted on artificial and natural infection nurseries using quantitative disease scales from 1 to 9. Biophysical and conductometric methods are used for rapid analysis of the degree of tissue damage by pathogenic toxins.
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.
Solanum lycopersicum L. var. lycopersicum · Tomato
ISI SEMENTI SPA
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE, DE
Triticum aestivum L. · Bread wheat
Luchna Inna Stanislavivna, Usova Zoia Vasylivna, Iodkovskyi Vladislav Zdislavovych, Riabchun Nataliia Ivanivna, Yel`nikov Mykola Ivanovych, Zviahin Andrii Fedorovych,
Allium cepa L. var. aggregatum G. Don · Shallot
Magnus Kahl Seeds Pty Ltd
Solanum lycopersicum L. · Tomato
Sylvain Bontems
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,
Schlumbergera Lem. · Schlumbergera
J. DE. VRIES POTPLANTECULTURES B.V.
Lactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
Allium cepa L. var. cepa · Onion
Sakata Seed America
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
Triticum aestivum L. · Bread wheat
Stebliuk Mykola Illich, Chornyi Oleksandr Vasyl`ovych, Antonenko Oleksii Fedorovych,
Solanum lycopersicum L. · Tomato
Tovarystvo z obmezhenoiu vidpovidalnistiu "SPARK SIDZ"
Beta vulgaris Sugar Beet Group · Sugar beet
Borysova Tetiana Oleksandvivna, Borysova Larysa Serhiivna, Fedorenko Inha Anatoliivna, Mel`nychuk IUrii Viktorovych, Mel`nyk Nadiia Serhiivna, Malihon Halyna Serhiivna, Zmiievs`kyi Volodymyr Mykolaiovych, Chemerys Lina Mykolaivna, Panov Mykhailo Ivanovych
Solanum lycopersicum L. · Tomato
Axia NL B.V.
Erica carnea L. · Winter heath
KRAMER KURT| Kurt Kramer (Heidezuechtung)
Nicotiana tabacum L. · Tobacco
Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy
Allium cepa L. · Onion
Ger Beemsterboer
Nicotiana tabacum L. · Tobacco
Centralne Laboratorium Przemyslu Tytoniowego
Solanum lycopersicum L. · Tomato
Axia NL B.V.
hybrids between Kalanchoe miniata Hils. & Bojer ex Tul. And Kalanchoe porphyrocalyx (Baker) Baill.
Max Fischbeck
Solanum lycopersicum L. · Tomato
Axia NL B.V.
Nicotiana tabacum L. · Tobacco
Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy
Nicotiana tabacum L. · Tobacco
Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy
Nicotiana tabacum L. · Tobacco
Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy