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
Stephan Berger
Solanum tuberosum L. · Potato
Wolfgang Walter
Solanum tuberosum L. · Potato
Wolfgang Walter, Norika Nordring - Kartoffelzucht - und Vermehrungs - GmbH Gross Lusewitz
Solanum tuberosum L. · Potato
Heinrich Böhm
Solanum tuberosum L. · Potato
Stet Holland Research
Solanum tuberosum L. · Potato
DR. LUDWIG SIMON
Solanum tuberosum L. · Potato
Lantmõnnen Seed B.V.
Solanum tuberosum L. · Potato
SOLANA GMBH & CO KG
Solanum tuberosum L. · Potato
Station Recherche du Comité Nord (GIE)
Solanum tuberosum L. · Potato
University of Idaho, Office of Technology Transfer
Solanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico BV
Solanum tuberosum L. · Potato
UNICOPA/CLAUSE
Solanum tuberosum L. · Potato
Saatbau Linz OÖ. Landes-Saatbaugen.reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
KWEEKINTITUUT KARNA
Solanum tuberosum L. · Potato
VEREINIGTE SAATZUCHTEN (DE)
Solanum tuberosum L. · Potato
DANESPO A/S
Solanum tuberosum L. · Potato
Jan Lucas Spijkman, Johanna Maria Spijkman-Vergeer
Solanum tuberosum L. · Potato
Kartoffelzucht Böhm GmbH & Co. KG (DE)
Solanum tuberosum L. · Potato
Dunnet, J.
Solanum tuberosum L. · Potato
Potato Marketing Board Edinbourgh Maner Place (UK)
Solanum tuberosum L. · Potato
SVALOF AB
Solanum tuberosum L. · Potato
P.BREED.INT.CAMBRIDGE
Solanum tuberosum L. · Potato
NIEDERS KARTOFFELZ
Solanum tuberosum L. · Potato
SAATZUCHT FIRLBECK GMBH and CO KG