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Diseases

Potato wart

Synchytrium endobioticum

A quarantine disease of potatoes caused by a soil-borne parasitic fungus, manifested by the formation of growths on tubers and plant organs. The disease leads to significant yield losses and requires the use of exclusively wart-resistant varieties to clear the soil.

Mentioned in descriptions 2 298 varieties reference book.

Potato wart manifests as fleshy growths on tubers and stolons, which resemble cauliflower inflorescences in appearance. Initially, they are light in color, but as they develop, they darken, rot, and turn into a foul-smelling slimy mass. On stems, leaves, and flowers, the pathogen causes the appearance of green growths; atypical forms of damage, such as leaf crinkling or nodular deformations, are also encountered.

The development of the disease is closely related to soil moisture and temperature, with high humidity (60–80%) and temperatures of +15…+18°C being the most favorable conditions. The pathogen infects potatoes best in light and acidic soils, and the risk of infection increases critically with prolonged continuous cultivation of the crop on the same plot. The parasite's resting spores remain viable in the soil for up to 30 years.

The resistance of potato varieties to potato wart is based on a hypersensitivity mechanism, in which plant cells at the site of zoospore penetration die immediately, isolating the infection site and preventing further development of the fungus. Assessment of resistance is a mandatory stage of state variety testing. Cultivating resistant varieties in the infested zone contributes to the gradual clearing of the soil from infection, as the absence of a susceptible host interrupts the parasite's development cycle.

Sources10

Breakdown by crop

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.

Solanum tuberosum L. · Potato

TPC Research BV

NL
12 records

Allison

Active

Solanum tuberosum L. · Potato

ROCUS PIETER GRAVELAND

NL
12 records

Claustar

Active

Solanum tuberosum L. · Potato

SOCIETE CLAUSE

ES FR GR IE LU NL
8 records

Solanum tuberosum L. · Potato

ZPC

DE DK ES FR IE
13 records

Verona

Active

Solanum tuberosum L. · Potato

UNIPLANTA| Uniplanta - Saatzucht KG

CZ DE NL PL
19 records

Sava

Active

Solanum tuberosum L. · Potato

Landbrugets Kartoffelfond, Foraedlst., DK-7184 Vandel

DK NL PL SE
10 records

Estima

Active

Solanum tuberosum L. · Potato

SELECTIEBEDRIJF LUIDENBURG BV

FR IE IT NL
11 records

Anaïs

Active

Solanum tuberosum L. · Potato

GROCEP SICA

BG FR HR MT
11 records

Cara

Active

Solanum tuberosum L. · Potato

Teagasc

ES IE LU MT
11 records

Avanti

Active

Solanum tuberosum L. · Potato

STET Holland B.V.

FR IT NL
11 records

Zorba

Active

Solanum tuberosum L. · Potato

STOVER PRODUKTION GMBH

DE ES IT
9 records

Mustang

Active

Solanum tuberosum L. · Potato

NIEDEROSTERREICHISCHE SAATBAUGENOSSENSCHAFT, AT

HR NL UA
13 records

Melanie

Active

Solanum tuberosum L. · Potato

Grocep (FR)

DE FR NL
11 records

Fakse

Active

Solanum tuberosum L. · Potato

Landbrugets Kartoffelfond, Foraedlst., DK-7184 Vandel

DK EE PL
10 records

Elodie

Active

Solanum tuberosum L. · Potato

JEAN MARC ABHIVEN_

BG FR UA
8 records

Bellini

Active

Solanum tuberosum L. · Potato

Stet Holland BV (NL)

HR NL SI
10 records

Adretta

Active

Solanum tuberosum L. · Potato

NORIKA NORDRING-KARTOFFELZUCHTUND VERMEHRUNGS GmbH

DE LV SK
9 records

Alpha

Active

Solanum tuberosum L. · Potato

FRIESE MIG V.LANDBOU.

ES IT MT
7 records

Wendy

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE UA
11 records

Sissi

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE FR
8 records

Natalia

Active

Solanum tuberosum L. · Potato

SOLANA SEEDS UNITED KINGDOM LTD. UNIT 4

DE UA
10 records

Napoleon

Active

Solanum tuberosum L. · Potato

Peter Leonard Oldenkamp

NL UA
11 records

Mia

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE UA
11 records

Lucera

Active

Solanum tuberosum L. · Potato

PLANTERA SEED BV

FR NL
11 records

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