Diseases

Root rots

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.

Sources10

Breakdown by crop

Root rots — common wheat 125 Root rots of sugar beet 75 Pea Root Rots 73 Tomato root rot 72 Raspberry root rots 55 Root rots — garden strawberry 47 Root rots of lettuce 43 Alfalfa Root Rot 40 Cucumber root rot 40 Tobacco root rots 35 Barley root rots 35 Maize Root Rots 33 Root rots of soybean 29 Root rots — red clover 20 Root rots — Onion 17 Root rots of Calibrachoa 17 Apple root rot 16 Bean root rots 15 Root rots — Onion 13 Root rots — durum wheat 13 Apple Root Rots 11 Root rots of triticale 10 Root rots of subterranean clover 10 Maize root rot 8

Found in these crops

Tomato 573 Sugar beet 141 Onion 136 Onion 119 Bread wheat 119 Garden strawberry 91 Pea 75 Red raspberry 64 Lettuce 60 hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner 58 Alfalfa 53 Soybean 53

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.

Balangflac

Application submitted

Angelonia angustifolia Benth. · Angelonia

Masor Laura L.

2 records

Back in Black

Application submitted

Hylotelephium telephium (L.) H. Ohba · Orpine

Hansen Hans A

2 records

ANEM078

Active

Anemone x lesseri H. R. Wehrh.

Holtmaat Henricus Maria Joseph

2 records

Antique Shades

Active

Xerochrysum bracteatum (Vent.) Tzvelev · Strawflower

Turner Matthew

2 records

Agat

Active

Rubus idaeus L. · Red raspberry

Graminor AS, N-2322 Ridabu

2 records

After Midnight

Active

Echinacea purpurea (L.) Moench · Purple coneflower

IT Saul Plants LLC

2 records

Zlatson

Active

Helianthus annuus L. · Sunflower

Borovs`ka Iryna IUriivna, Petrenkova Vira Pavlivna, Brahin Oleksandr Mykolaiovych, Tymchuk Serhii Mykhailovych, Satarov Oleksandr Zainulovych, Syvenko Oleksandr Anatoliiovych, Popova Ol`ha Andriivna, Kolomatska Valeriia Pavlivna, Syvenko Valentyna Ivanivn

3 records

VN 6763

Active

Zea mays L. · Maize

Kudyna Ol`ha IUriivna, Lubko Maryna Vasylivna, Parii IAroslav Fedorovych, Rusavskyi Vladyslav Leonidovych, Iliuchenko Oleksandr Serhiiovych, Parii Myroslav Fedorovych, Parii IUliia Oleksandrivna, Parii Fedir Mykytovych,

3 records

Zhaivir

Active

Triticum aestivum L. · Bread wheat

Babaiants Lazar Tihranovych, Rybalka Oleksandr Illich, Bredins`ka Nadiia Stepanivna, Rodenko Halyna Anatoliivna, Nakonechnyi Mykola IUriiovych, Narhan Tetiana Pavlivna, Fedchenko Volodymyr Pavlovych, Yeryniak Mykola Ivanovych, Lyfenko Savelii Pylypovych,

3 records

Topolovgrad 573

Terminated

Nicotiana tabacum L. · Tobacco

Angel I. Manolov, Delka I. Leshteva, Elena G. Baldzhieva, Kuna A. Petrova

2 records

Tibor

Active

Lolium multiflorum Lam. · Italian ryegrass

SFINGE KFT

2 records

Scarlet

Terminated

Hordeum vulgare L. · Barley

Saatzucht J. Breun (DE)

2 records

Rila 89

Terminated

Nicotiana tabacum L. · Tobacco

Georgi Stankov, Rumyana Trancheva

3 records

Pandiia

Active

Triticum aestivum L. · Bread wheat

Kukuruza Ivan Ivanovych

3 records

MIP Raiduzhna

Active

Triticum durum Desf. · Durum wheat

Kuz`menko IEvhenii Anatoliiovych, Mukha Tetiana Ivanivna, Fedorenko Iryna Viktorivna, Fedorenko Maryna Viktorivna, Solona Valentyna Iosypivna, Khomenko Svitlana Olehivna, Kochmarskyi Valentyn Serhiiovych,

3 records

Hospodynia

Active

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,

3 records

Burbon

Active

Triticum durum Desf. · Durum wheat

MAL'ChIKOV PETR NIKOLAEVICh / MYaSNIKOVA MARINA GERMANOVNA / NATOLI VINCENZO

3 records

PS-2013-4

Active

Gardenia jasminoides J. Ellis · Cape jasmine

James Berry

1 record

Lyst 25

Active

Triticum aestivum L. · Bread wheat

Kochubei Inna Oleksandrivna, Kosov Anatolii Hryhorovych, Kraievs`kyi Anatolii Mykolaiovych, Karpenko Oleksandr Oleksandrovych,

2 records

Tobias

Active

Solanum lycopersicum L. · Tomato

HU NL

4 records

Sierra Blanca

Active

Allium cepa L. · Onion

3 records

Profilo

Protection expired

Solanum lycopersicum L. · Tomato

NL SK

3 records

Pyrella

Terminated

Solanum lycopersicum L. · Tomato

ES NL

3 records

Festival

Protection expired

Allium cepa L. var. cepa · Onion

CZ NL

3 records

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Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Rust 14 859
Verticillium wilt 12 175
Scab 12 064

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.