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Diseases

Potato Scab

Solanum tuberosum L.

A group of potato diseases caused by various pathogens, primarily affecting the tubers. It includes common, powdery, silver, skin spot, and black scurf forms, which differ in their causal agents and symptoms.

In the reference 1 000 varieties crop Potato, where this is mentioned in the description.

Potato scab encompasses five main forms of the disease: common scab, caused by the actinomycetes Streptomyces scabies; powdery scab (Spongospora subterranea); silver scurf (Helminthosporium solani); skin spot (Polyscytalum pustulans); and black scurf, or Rhizoctonia disease (Rhizoctonia solani). Lesions appear on the tubers as ulcers, pustules, spots with a metallic sheen, or growths on the roots.

In agronomic practice, cultivar resistance is assessed using a scoring scale, as specific immunity genes for scab pathogens have not been identified. Breeding efforts are focused on selecting hybrid material with high field tolerance and complex resistance to diseases under production conditions.

General information about the subject — on the page Scab.

Sources8

Varieties of Potato mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Zeta

Active

Solanum tuberosum L. · Potato

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

PL
3 records

Yelda

Active

Solanum tuberosum L. · Potato

Germicopa Breeding S.A.S

NL
3 records

Wolfram

Terminated

Solanum tuberosum L. · Potato

Olsztyńska Hodowla Ziemniaka i Nasiennictwo OLZNAS-CN sp. z o.o.

PL
3 records

Widawa

Active

Solanum tuberosum L. · Potato

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

PL
3 records

Wanda

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht GmbH Co KG

DE
3 records

Werbena

Active

Solanum tuberosum L. · Potato

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

PL
4 records

Solanum tuberosum L. · Potato

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

AT
3 records

Vivat

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE
3 records

Vicking

Terminated

Solanum tuberosum L. · Potato

Pot Eerke

SE
3 records

Wahou

Active

Solanum tuberosum L. · Potato

BRETAGNE PLANTS INNOVATION S.A.S.

NL
4 records

VB Liepa

Terminated

Solanum tuberosum L. · Potato

Lietuvos agrarinių ir miškų mokslų centro Vokės filialas

LT
2 records

Uta

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE
3 records

Tuluza

Active

Solanum tuberosum L. · Potato

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

PL
3 records

Tonacja

Active

Solanum tuberosum L. · Potato

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

PL
4 records

Tokai

Active

Solanum tuberosum L. · Potato

Danespo A/S

DK
4 records

Tacja

Active

Solanum tuberosum L. · Potato

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

PL
4 records

Tiina

Active

Solanum tuberosum L. · Potato

Aide Tsahkna 50%, Terje Tähtjärv 50%, Centre of Estonian Rural Research and Knowledge

EE
3 records

Summit

Terminated

Solanum tuberosum L. · Potato

New Zealand Institute for Crop and Food Research Ltd

SK
3 records

Surmia

Active

Solanum tuberosum L. · Potato

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

PL
4 records

Solanum tuberosum L. · Potato

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

PL
4 records

Smilla

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht GmbH Co KG

DE
3 records

SKIRZA

Terminated

Solanum tuberosum L. · Potato

CAITHNESS POTATO BREEDERS LTD

FR
3 records

Sempre

Active

Solanum tuberosum L. · Potato

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

PL
3 records

Sixtus

Active

Solanum tuberosum L. · Potato

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

AT
3 records

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