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
Kweek- en Researchbedrijf Agrico B.V.
Solanum tuberosum L. · Potato
Robert Plaisted, Cornell University Agricultural Experiment Station
Solanum tuberosum L. · Potato
JEAN-MARC ABIVEN
Solanum tuberosum L. · Potato
SIM W (GB)
Solanum tuberosum L. · Potato
NORDOSBAYERISCHER (DE)
Solanum tuberosum L. · Potato
Rolimpex (PL)
Solanum tuberosum L. · Potato
Grocep S.I.C.A.
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
P H SMEENGE
Solanum tuberosum L. · Potato
HERMEZIU RADU
Solanum tuberosum L. · Potato
Potato Breeding & Consultancy (PBC)
Solanum tuberosum L. · Potato
Francis LEVIEIL (FR)
Solanum tuberosum L. · Potato
BRETAGNE PLANTS INNOVATION S.A.S.
Solanum tuberosum L. · Potato
IPR B.V.
Solanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
Solanum tuberosum L. · Potato
Pannon Egyetem Georgikon Mezőgazdaságtudományi Kar, Veszprém
Solanum tuberosum L. · Potato
JOGEVA PLANT BREEDING INSTITUTE
Solanum tuberosum L. · Potato
Federation des Syndicats Bretons (FR)
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
Boerhave V.O.F.
Solanum tuberosum L. · Potato
Yosef Fohel`
Solanum tuberosum L. · Potato
Bretagne-Plants S.C.I.C.A.
Solanum tuberosum L. · Potato
van der Linden/Laurentius Gregorius Maria Hermus
Solanum tuberosum L. · Potato
Kmetijski Inštitut Slovenije (Agricultural Institute of Slovenia)