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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.

Avatar

Active

Solanum tuberosum L. · Potato

Averis Seeds B.V.

NL
4 records

Solanum tuberosum L. · Potato

Kweek- en Researchbedrijf Agrico B.V.

NL
3 records

Zdabytak

Active

Solanum tuberosum L. · Potato

ZUJKOV ANDREJ EVGEN'EVICh / PISKUN GEORGIJ IVANOVICh / ZhUROMSKIJ GENNADIJ KONSTANTINOVICh / KOLYaDKO OL'GA MATVEEVNA / DEMIDKO YaNINA DAVYDOVNA

UA
4 records

Ydun

Active

Solanum tuberosum L. · Potato

KMC Kartoffelmelscentralen a.m.b.a.

DK
4 records

Vysocina

Active

Solanum tuberosum L. · Potato

Vesa Velhartice a.s.

CZ
4 records

Verne

Active

Solanum tuberosum L. · Potato

Vesa Velhartice a.s.

CZ
4 records

Vermont

Active

Solanum tuberosum L. · Potato

Kuipers Potato V.O.F.

NL
5 records

Uladar

Active

Solanum tuberosum L. · Potato

RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NACZIONALNOJ AKADEMII NAUK BELARUSI PO KARTOFELEVODSTVU I PLODOOVOSHHEVODSTVU»

UA
4 records

Triton

Active

Solanum tuberosum L. · Potato

NORIKA Nordring-Kartoffelzucht-und Vermehrungs-GmbH Gross Luesewitz

DE
4 records

Tinca

Active

Solanum tuberosum L. · Potato

Danespo A/S

DK
4 records

Thor

Active

Solanum tuberosum L. · Potato

Landbrugets Kartoffelfond

DK
4 records

Telma

Active

Solanum tuberosum L. · Potato

Germicopa Breeding S.A.S

NL
4 records

Theda

Active

Solanum tuberosum L. · Potato

Europlant Innovation GmbH & Co. KG

DE
5 records

Solanum tuberosum L. · Potato

Sloots Aardappelkweekbedrijf B.V.

NL
5 records

Solo

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

CZ
4 records

Sokrates

Active

Solanum tuberosum L. · Potato

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

AT
5 records

Skarb

Active

Solanum tuberosum L. · Potato

ZUJKOV ANDREJ EVGEN'EVICh / NEZAKONOVA LYuDMILA VASIL'EVNA / DEDYuLYa VERA VLADIMIROVNA / YaShchENKO NINA PETROVNA / RYNDINA ELENA GRIGOR'EVNA / PIShchENKO LYuDMILA IVANOVNA / DOROZhOK ALLA NIKOLAEVNA / SEMENOVA ZOYa ALEKSANDROVNA

UA
4 records

Santera

Active

Solanum tuberosum L. · Potato

Plantera Seed B.V.

NL
5 records

Rumpel

Active

Solanum tuberosum L. · Potato

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

PL
4 records

Solanum tuberosum L. · Potato

Vesa Velhartice a.s.

CZ
4 records

Pasat

Active

Solanum tuberosum L. · Potato

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

PL
4 records

Nemo

Active

Solanum tuberosum L. · Potato

Fobek B.V., Tuberosum Technologies Inc.

NL
6 records

Novano

Active

Solanum tuberosum L. · Potato

Saatzucht Niehoff

NL
5 records

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