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
Jan Boer
Solanum tuberosum L. · Potato
Van Rijn France
Solanum tuberosum L. · Potato
Saatzucht Hergen Berding
Solanum tuberosum L. · Potato
PLANT BREEDING INTERNATIONAL CAMBRIDGE
Solanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico BV
Solanum tuberosum L. · Potato
HANS JURGEN EVERS (T)
Solanum tuberosum L. · Potato
Stacja Hodowli Roślin Stawiski
Solanum tuberosum L. · Potato
LENNART ERJEFÄLT^^^BÖÖS ULLA
Solanum tuberosum L. · Potato
HZPC Holland B.V.
Solanum tuberosum L. · Potato
VEB SAAT
Solanum tuberosum L. · Potato
WOLF & WOLF B.V.
Solanum tuberosum L. · Potato
VOGEL JOSEF| Dr. Josef Vogel
Solanum tuberosum L. · Potato
Kartoffelzucht Böhm GmbH & Co. KG (DE)
Solanum tuberosum L. · Potato
NORIKA NORDRING-KARTOFFELZUCHT UND VERMEHRUNGS-GMBH
Solanum tuberosum L. · Potato
Yosef Fohel`
Solanum tuberosum L. · Potato
Kweekbedrijf-Zpc (NL)
Solanum tuberosum L. · Potato
SMEENGE| Piet Smeenge / SMEENGE ALBERT| Albert Smeenge
Solanum tuberosum L. · Potato
Wilhelm Meyer in Fa. Golden Geest Kartoffel Erzeuger- gesellschaft mbH
Solanum tuberosum L. · Potato
WESTON JW (US)
Solanum tuberosum L. · Potato
PBI Cambridge (GB)
Solanum tuberosum L. · Potato
Sloots Aardappelkweekbedrijf B.V.
Solanum tuberosum L. · Potato
VAN RIJN-KWS B.V.
Solanum tuberosum L. · Potato
Lantmõnnen Seed B.V.
Solanum tuberosum L. · Potato
SAKA PFLANZENZUCHT GMBH AND CO KG