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.

Barbecue

Active

Rosmarinus officinalis L. · Rosemary

PUTIEVSKY E.^^^DUDAI N.^^^SAADI D.

4 records

Balandrise

Active

Lantana camara L. · Lantana

LESLIE HEFFRON

4 records

SY Helenor

Active

Zea mays L. · Maize

Syngenta Crop Protection AG

IT SK UA

6 records

GL Lucia

Active

Vicia faba L. · Broad bean

Saatzucht Gleisdorf

AT LT

6 records

PS Sunanka

Active

Triticum aestivum L. · Bread wheat

Centrum výskumu rastlinnej výroby (CVRV) Pieštany

5 records

Halilbey

Active

Oryza sativa L. · Rice

Trakya Agricultural Research Institute (TR)

4 records

Amaretto

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

5 records

PRIMA DONA

Active

Solanum lycopersicum L. · Tomato

IP MASHTAKOV ALEKSEJ ALEKSEEVICH

3 records

K 394

Active

Nicotiana tabacum L. · Tobacco

ProfiGen Do Brasil

3 records

K 326

Active

Nicotiana tabacum L. · Tobacco

NOVARTIS SEEDS

3 records

DS-Admiral

Active

Pisum sativum L. · Pea

Danisco Seed

3 records

Sylvia's Surprise

Active

Geranium wallichianum D. Don ex Sweet · Wallich's geranium

SYLVIA MORROW

3 records

Scarlet O'Hara

Active

Papaver orientale L. · Oriental poppy

Oudshoorn Hubertus Gerardus

3 records

EC-BEGO-1901

Active

Begonia masoniana Irmsch. · Iron cross begonia

Smit Obed

3 records

Bambino 2

Active

Ficus lyrata Warb. · Banjo fig

van der Knaap Eduard J.M.

3 records

Cape Town

Active

Haworthiopsis fasciata (Willd.) G. D. Rowley · Zebra haworthia

Willems Rogier

4 records

A132 926

Active

Vaccinium L. · Bilberry

Hartmann Daniel Patrick

4 records

T 0514 LF

Active

Helianthus annuus L. · Sunflower

Revol Benoit

4 records

LH 93

Protection expired

Zea mays L. · Maize

HOLDEN'S FOUNDATION SEEDS INC.

2 records

W-L 252 HQ

Protection expired

Medicago sativa L. · Alfalfa

W-L Research

2 records

Vezha myronivs'ka

Active

Triticum aestivum L. · Bread wheat

VLASENKO VOLODYMYR, KYRYLENKO VIRA, ZAIMA OLEKSII, YURCHENKO TETIANA, KHOMENKO SVITLANA, HUMENIUK OLEKSANDR, DUBOVYK NATALIIA, VOLOHDINA HALYNA, ZAMLILA NINA, DEMYDOV OLEKSANDR

3 records

Winter Star

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Florida Foundation Seed Producers

2 records

RED STAR

Application submitted

Trifolium pratense L. · Red clover

Deutsche Saatveredelung AG - DSV (DE)

3 records

Red Star

Active

Allium cepa L. var. cepa · Onion

Seminis Vegetable Seeds

3 records

1 2 ... 21 22 23 24 25 26 27 ... 104 105 Next

Jump to page 14 15 30 34 45 60 75 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.