Expression
ActiveAllium cepa L. var. cepa · Onion
NL
2 records
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.
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
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.
Casania
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Dolar
ActiveZea mays L. · Maize
HU
5 records
Erin
TerminatedGlycine max (L.) Merr. · Soybean
SK
3 records
Crown Jewel
TerminatedSolanum lycopersicum L. · Tomato
NL
3 records
Eurasia
ActiveSolanum lycopersicum L. · Tomato
HU
2 records
Bubu
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
BTS 6685 RHC
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Efialto
TerminatedSolanum lycopersicum x Solanum pimpinellifolium · Tomato
NL
2 records
Bucanero
ActiveSolanum lycopersicum L. · Tomato
HU
2 records
Bocati
ActiveSolanum lycopersicum L. · Tomato
NL
3 records
Echelon
Activehybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
HU
2 records
Cougar
TerminatedAllium cepa L. var. cepa · Onion
NL
2 records
Conchita
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
Carnegie
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
Delegato
ActiveZea mays L. · Maize
SK
2 records
Cowichan
ActiveRubus idaeus L. · Red raspberry
NL
4 records
Devotion
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
Darkmoon
ActiveSolanum lycopersicum L. · Tomato
HU
2 records
Damascus
TerminatedAllium cepa L. var. cepa · Onion
NL
2 records
B 118
ActiveMalus domestica (Suckow) Borkh. · Apple
NL
2 records
Azarbe
ActiveSolanum lycopersicum L. · Tomato
HU
2 records
Contento
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Chico
ActiveGlycine max (L.) Merr. · Soybean
IT
2 records