Diseases
Solanum tuberosum L.
A dangerous disease caused by the oomycete Phytophthora infestans, which affects potato foliage and tubers. It is characterized by high genetic variability of the pathogen and the presence of vertical resistance based on R-genes.
In the reference 1 396 varieties crop Potato, where this is mentioned in the description.
The causative agent of the disease is Phytophthora infestans, which affects all plant organs. On the foliage, symptoms appear in the second half of the growing season as brown spots with a characteristic white fungal growth under high humidity. Infected tubers become covered with firm, sunken spots with a rusty-brown dry rot in the flesh.
Pathogen populations include complex races with multiple virulence genes capable of overcoming the resistance provided by R1, R2, R3, and other genes. In potato breeding, a distinction is made between vertical resistance, based on R-genes from wild species, and horizontal polygenic resistance, which restricts disease development regardless of the race composition of the pathogen.
General information about the subject — on the page Late blight.
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.
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
R.J. Mansholt's Veredelingsbedrijf
Solanum tuberosum L. · Potato
BERNARD KRIJGER
Solanum tuberosum L. · Potato
CYGNET POTATO BREEDERS
Solanum tuberosum L. · Potato
M HIGGINS LTD
Solanum tuberosum L. · Potato
DR. LUDWIG SIMON
Solanum tuberosum L. · Potato
SARL L.S.A.
Solanum tuberosum L. · Potato
Wageningen UR Plant Breeding
Solanum tuberosum L. · Potato
Teagasc Crops Research Department
Solanum tuberosum L. · Potato
Kmetijski inštitut, SI
Solanum tuberosum L. · Potato
Justus Böhm
Solanum tuberosum L. · Potato
Landbrugets Kartoffelfond, Foraedlst., DK-7184 Vandel
Solanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
Solanum tuberosum L. · Potato
Fobek B.V./A. de Nijs & Zonen. BV/Handelmaatschappij Pars B.V.
Solanum tuberosum L. · Potato
Germicopa SAS, FR
Solanum tuberosum L. · Potato
Grocep S.I.C.A.
Solanum tuberosum L. · Potato
Station du Comite Nord (FR)
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
DANESPO AS, DK - 7323 GIVE
Solanum tuberosum L. · Potato
Saka Pflanzenzucht GmbH Co KG
Solanum tuberosum L. · Potato
IPR B.V.
Solanum tuberosum L. · Potato
JEAN MARC ABHIVEN_
Solanum tuberosum L. · Potato
SICA GROCEP
Solanum tuberosum L. · Potato
SICA GROCEP