Zambezi
ActiveAllium cepa L. · Onion
Skott Hendrics
UA
3 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.
Vinovia
ActiveTrifolium pratense L. · Red clover
DLF Seeds A-S, DK
CZ
FR
4 records
NKTerra
TerminatedZea mays L. · Maize
SYNGENTA SEEDS AG, CH
BG
IT
3 records
Smart Narnia KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Gertz Maik, Hauer Dietrich,
DE
UA
4 records
Sanpavel
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
UA
4 records
Rebelski
ActiveSolanum lycopersicum L. · Tomato
Bernardus van den Bosch
NL
UA
5 records
Rainette
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE, N.V./S.A.
ES
FR
3 records
Smart Ninetta KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Maik Gertz, Monica Fauser, Dietrich Hauer,
DE
UA
4 records
Smart Leona KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Werner Beyer Monica Weber Maik Gertz Dietrich Hauer
DE
UA
4 records
Madano
ActiveSolanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
NL
UA
5 records
Karta
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Syngenta Crop Protection AG
BE
ES
4 records
Azamat
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Sina Isabell Strube
DE
UA
4 records
Akazia KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Rudolf IAnzen, Ditrikh Khauer, Volfhanh Mekhelke,
DE
UA
4 records
Red Rock
ActiveAllium cepa L. · Onion
UNITED GENETICS SEEDS CO
PT
UA
4 records
Mustang
ActiveAllium cepa L. · Onion
BEJO ZADEN B.V.
SK
3 records
Lovito
ActiveAllium cepa L. var. cepa · Onion
Bayer Holland B.V. (NL)
FR
NL
3 records
Margarita KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Werner Beyer Monica Weber Maik Gertz Dietrich Hauer
DE
UA
4 records
Mission
Protection expiredTriticum aestivum L. · Bread wheat
Nickerson Seeds Ltd (GB)/Nickerson SA (FR)
FR
IE
5 records
Hytech
ActiveAllium cepa L. var. cepa · Onion
Bejo Zaden B.V.
NL
PL
3 records
Ibis
ActiveAllium cepa L. var. cepa · Onion
Hazera Seeds B.V.
CZ
NL
4 records
Xaroma
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Zulu
TerminatedOsteospermum L. · Osteospermum
SOERENSEN CARL| Carl Aksel Kragh Soerensen c/o Gartneriet Petersminde
DE
NL
3 records
Valerioso
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
UA
6 records
Wasino
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
UA
6 records