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.

Beaufort

Active

Solanum lycopersicum L. · Tomato

3 records

Delicao

Active

Zea mays L. · Maize

3 records

Saidah

Active

Capsicum annuum L. · Bell pepper

2 records

Overtune

Protection expired

Hordeum vulgare L. · Barley

2 records

Odessa

Active

Glycine max (L.) Merr. · Soybean

2 records

Xarito

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

2 records

TASAPAINO

Application submitted

hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner

Vilmorin-Mikado

1 record

Sukita F1

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

UNITED GENETICS ITALIA S.P.A

1 record

VRG2

Active

Nicotiana tabacum L. · Tobacco

Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy

1 record

Provegeto

Active

Solanum lycopersicum L. · Tomato

Vreugdenhil Breeding & Seeds B.V.

2 records

SY-24533

Application submitted

Solanum lycopersicum L. · Tomato

Harmoniz

1 record

Propullus

Active

Solanum lycopersicum L. · Tomato

Vreugdenhil Breeding & Seeds B.V.

2 records

Mediax XR

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

4 records

Rosefire

Application submitted

Allium cepa L. var. cepa · Onion

Nunhems B.V.

1 record

Macxize XR

Active

Solanum lycopersicum L. · Tomato

Axia NL B.V.

2 records

Prolumia

Active

Solanum lycopersicum L. · Tomato

Vreugdenhil Breeding & Seeds B.V.

2 records

Nezabudka

Terminated

Triticum aestivum L. · Bread wheat

Oks`om Volodymyr Polikarpovych, Artemchuk Iryna Petrivna, Morhun Bohdan Volodymyrovych, Morhun Volodymyr Vasyl`ovych,

2 records

NEMA-1401

Terminated

Solanum lycopersicum L. · Tomato

PETOSEED CO

1 record

Myronivs`ka slava

Application submitted

Triticum aestivum L. · Bread wheat

Dubovyk Nataliia Serhiivna, Yurchenko Tetiana Vasylivna, Siroshtan Andrii Anatoliiovych, Zamlila Nina Petrivna, Humeniuk Oleksandr Volodymyrovych, Chernov Oleh Vasyl`ovych, Kochmars`kyi Valentyn Serhiiovych,

2 records

PH5013

Active

Solanum lycopersicum L. · Tomato

Vreugdenhil Breeding & Seeds B.V.

2 records

OPLOT

Application submitted

Solanum lycopersicum L. · Tomato

RAMIRO ARNEDO, S.A.

1 record

ICIA 4

Active

Persea americana Mill. · Avocado

LUISA GALLO LLOBET

1 record

Julioso

Application submitted

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

2 records

Montale

Active

hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner

MERIDIEM SEEDS S.L.

1 record

1 2 ... 76 77 78 79 80 81 82 ... 104 105 Next

Jump to page 15 30 45 60 69 75 89 90

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

All terms →

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.