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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.

Brasetto

Active

Secale cereale L. · Rye

Peer Wilde^^^Brigitta Schmiedchen^^^Jutta Menzel

AT CZ DE DK FI LT +4
22 records

Parade

Active

Allium fistulosum L. · Welsh onion

Her Bimsdeboer

BG HR HU NL SI UA
15 records

LG Belcanto

Active

Hordeum vulgare L. · Barley

LIMAGRAIN EUROPE

CZ DE EE FR LT NL +3
19 records

Santana

Active

Pisum sativum L. · Pea

Lochow-Petkus GmbH (DE)

AT DE DK FR HR HU +3
22 records

Halo

Application submitted

Secale cereale L. · Rye

Saatzucht Lochow-Petkus (DE)

BE DE DK ES HR IT +3
19 records

Etana

Active

Triticum aestivum L. · Bread wheat

Deutsche Saatveredelung AG, D-59557 Lippstadt

EE FI HU LT LV PL +1
20 records

Rafzaqu

Active

Rubus idaeus L. · Red raspberry

Promo-Fruit, CH

NL UA
19 records

NN08002

Active

Rubus idaeus L. · Red raspberry

The New Zealand Institute for Plant and Food Research

UA
16 records

Clockwork

Active

Vaccinium corymbosum L. · Highbush blueberry

Wagner L. Adam, Brazelton M. David

UA
21 records

Triso

Active

Triticum aestivum L. · Bread wheat

I.G. Saatzucht (DE)

AT EE FR HU LT LV +3
22 records

Soissons

Active

Triticum aestivum L. · Bread wheat

SAS FLORIMOND-DESPREZ Veuve et Fils

BE ES FR HR IE IT +2
22 records

Arktis

Active

Triticum aestivum L. · Bread wheat

Schlieter Bernd, Busch Heinrich,

AT EE LT LV PL UA
16 records

Atlantis

Active

Trifolium pratense L. · Red clover

Rolf Gaue^^^Martin Frauen

AT BE CZ DE EE FR +1
22 records

Labrador

Active

Phaseolus vulgaris L. · Common bean

Seminis Vegetable Seeds

CZ ES FR IT PL SK
17 records

Patras

Active

Triticum aestivum L. · Bread wheat

DEUTSCHE SAATVEREDELUNG AG

EE LT LU LV PL UA
16 records

LG Absalon

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, FR

BG FR IT RO SK UA
18 records

Korona

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Wassenaar, L.M.

DE DK FR HU NL PL +2
16 records

Elsanta

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

PLANT RESEARCH| Plant Research International B.V.

DE ES FR HU NL PL
19 records

Rumor

Active

Triticum aestivum L. · Bread wheat

Strube Research GmbH & Co. KG, D- 38387 Sollingen

DK LT UA
12 records

Tobak

Active

Triticum aestivum L. · Bread wheat

W. von Borries-Eckendorf GmbH & Co.KG

EE FR LT PL UA
15 records

Ventura

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo Seed International ApS, DK

DE HR HU NL PL SI
9 records

Lucata

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

SYNGENTA SEEDS, A.B.

CZ DE DK ES FR NL +2
10 records

Red Baron

Active

Allium cepa L. · Onion

Her Bemsdeburh

HU LT SI UA
9 records

Zekon

Active

Pisum sativum L. · Pea

Selgen a.s., CZ

CZ FI HR HU PL SI +1
15 records

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