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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

Potato Wart 688

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.

SANTE'

Active

Solanum tuberosum L. · Potato

VEREDELINGSBEDRIJF VV

BG CZ EE HR HU IE +7

25 records

VR 808

Active

Solanum tuberosum L. · Potato

VAN RIJN-KWS B.V.

NL PL UA

25 records

MONA LISA

Active

Solanum tuberosum L. · Potato

Z.P.C. /F.G. VAN DER ZEE /G. VAN DER ZEE /P.J. VAN DER ZEE

BE CZ DE ES FR HR +5

23 records

PIROL'

Active

Solanum tuberosum L. · Potato

Yosef Fohel`

BG DE HR LT LU PL +1

19 records

Euro Star

Active

Solanum tuberosum L. · Potato

VAN RIJN-KWS B.V.

DE HR IT NL PL

18 records

Maris Bard

Active

Solanum tuberosum L. · Potato

PLANT BREEDING INTERNATIONAL CAMBRIDGE

ES HR IE IT NL SE +1

15 records

Baby Lou

Active

Solanum tuberosum L. · Potato

SOLANA GMBH & CO KG

DE FR

11 records

7 four 7

Active

Solanum tuberosum L. · Potato

Jacob Eising

NL UA

16 records

MAE'STRO

Active

Solanum tuberosum L. · Potato

YaShINA IZOL'DA MAKSIMOVNA / RUSAKOVA IRINA GENNAD'EVNA / KALYaGIN YuRIJ NIKOLAEVICh / KABUNIN ALEKSANDR ANATOL'EVICh / KIRSANOVA E'L'ZA VLADIMIROVNA / LITOVChENKO ALEKSEJ EVGEN'EVICh

BG CZ FR SK

11 records

Red Sun

Active

Solanum tuberosum L. · Potato

G&C SCHAT - FOBEK

NL

7 records

Asterix

Active

Solanum tuberosum L. · Potato

ZPC Portugal

AT BE CZ DE DK EE +15

39 records

Mondial

Active

Solanum tuberosum L. · Potato

VEREDELINGSBEDRIJF D. BIEMOND B.V.

AT BE CZ DK ES FR +7

35 records

Santana

Active

Solanum tuberosum L. · Potato

Van Rijn BV (NL)

BG CZ DE DK FI FR +5

34 records

Lady Rosetta

Active

Solanum tuberosum L. · Potato

S. Meiier B.V.

BG CZ DE DK ES FI +11

35 records

Fontane

Active

Solanum tuberosum L. · Potato

Svalof Weibull AB

AT BG CZ EE FI HR +7

31 records

Lady Claire

Active

Solanum tuberosum L. · Potato

Meijer C. B.V. (NL)

BG CZ FI GR HR HU +6

27 records

Latona

Active

Solanum tuberosum L. · Potato

ZPC Portugal

BG CZ EE ES FR HR +9

25 records

Daisy

Active

Solanum tuberosum L. · Potato

Lab. De Phys. Veget., Barberet Et Ducloux Et Cie

BG FR HU PL SK UA

29 records

Taurus

Active

Solanum tuberosum L. · Potato

ROCUS PIETER GRAVELAND

AT IT NL UA

33 records

Platina

Active

Solanum tuberosum L. · Potato

JANSEN A.

AT BE CZ DE EE FR +7

29 records

Innovator

Active

Solanum tuberosum L. · Potato

ZPC Portugal

BG CZ IT LT NL PL +2

32 records

Colomba

Active

Solanum tuberosum L. · Potato

ROCUS PIETER GRAVELAND

NL PL UA

32 records

Velox

Active

Solanum tuberosum L. · Potato

SAKA-RAGIS PFLANZENZUCHT GBR

AT BG CZ DE EE FI +6

28 records

Fabula

Active

Solanum tuberosum L. · Potato

Kweekbedrijf D. Biemond B.V.

GR HR IT NL PL SI +1

27 records

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.