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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

HERMEZIU RADU

RO
3 records

Piwonia

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
4 records

Pogoria

Active

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
3 records

Pepino

Active

Solanum tuberosum L. · Potato

Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.

AT
3 records

Piret

Active

Solanum tuberosum L. · Potato

Aide Tsahkna 70%, Alice Anderfeld 20%, Mati Koppel 10%

EE
3 records

Petra

Active

Solanum tuberosum L. · Potato

WALLMUELLER| Walter Wallmueller

DE
5 records

Opalim

Active

Solanum tuberosum L. · Potato

Grocep S.I.C.A.

NL
4 records

Oberon

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
5 records

Nevena

Active

Solanum tuberosum L. · Potato

Vesa Velhartice a.s.

CZ
3 records

Nevskij

Active

Solanum tuberosum L. · Potato

Šiaurės-Vakarų ŽŪMTI

LT
3 records

Solanum tuberosum L. · Potato

Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.

AT
4 records

Nasturcja

Terminated

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
5 records

Nola

Active

Solanum tuberosum L. · Potato

Aardappelkweek- en Selectiebedrijf Ijsselmeerpolders B.V.

NL
4 records

Solanum tuberosum L. · Potato

Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.

AT
2 records

Nancy

Active

Solanum tuberosum L. · Potato

Vesa Velhartice a.s.

SK
3 records

Mirage

Protection expired

Solanum tuberosum L. · Potato

KARTZ VON KAMEKE

DE
3 records

Meteor

Active

Solanum tuberosum L. · Potato

Station de Recherche du Comite Nord (FR)/Groupement Interprofessionel de la Pomme de Terre (FR)

FR
3 records

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
4 records

Meluzyna

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
4 records

Meichip

Active

Solanum tuberosum L. · Potato

Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.

AT
3 records

Mazur

Active

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
3 records

Maret

Active

Solanum tuberosum L. · Potato

Aide Tsahkna 90%, Alice Anderfeld 5%, Mati Koppel 5%

EE
3 records

Mammut

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE
3 records

Longinus

Active

Solanum tuberosum L. · Potato

NIEDEROESTERREICHISCHE SAATBAUGENOSSENSCHAFT

AT
3 records

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