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.
Zea mays L. · Maize
Kravchenko Viktor Mykolaiovych, Mel`nychuk Ol`ha Serhiivna, Cherkashyna Hanna Volodymyrivna, Voskoboinyk Oleksandr Vasyl`ovych, Nehoda Tetiana Volodymyrivna, Borysov Viktor Mykolaiovych, Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetsky
Triticum aestivum L. · Bread wheat
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Solanum lycopersicum L. · Tomato
HAZERA SEEDS BV
Solanum lycopersicum L. · Tomato
INTERSEMILLAS SAU
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
Solanum lycopersicum L. · Tomato
HAZERA SEEDS BV
Trifolium subterraneum L. · Subterranean clover
NEW SOUTH WALES, DEP.AGR.
Salvia hispanica L. · Chia
Universität Hohenheim Herrn Dr. Volker Hahn LSA AG Sonnenbl. u. Leguminosen (720) Versuchsstation / Universität Hohenheim Institut für Kulturpflanzen- wissenschaften (340a) Frau Simone Graeff-Hönninger / Universität Hohenheim Institut für Kulturpflanzen-
Solanum lycopersicum L. · Tomato
Bejo Zaden B.V.
Solanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
Trifolium subterraneum L. · Subterranean clover
WESTERN AUSTRALIA,DEP.AGR
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum torvum Sw. · Turkey berry
AKIRA SEEDS S.L.
Solanum lycopersicum L. · Tomato
TSI Italia S.R.L.
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Solanum lycopersicum L. · Tomato
HAZERA SEEDS BV
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Prosem (FR)