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
SLOOTS| R.H. Sloots
Solanum tuberosum L. · Potato
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Solanum tuberosum L. · Potato
SAATZUCHT FRITZ LANGE KG, DE
Solanum tuberosum L. · Potato
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
ZIMMERMANN (DE)/INCONNU (FR)
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
W.WALLMULLER
Solanum tuberosum L. · Potato
BOERHAVE VOF
Solanum tuberosum L. · Potato
SAATZUCHT FIRLBECK GMBH&CO.KG
Solanum tuberosum L. · Potato
Vesa Velhartice a.s.
Solanum tuberosum L. · Potato
Europlant Innovation GmbH & Co. KG
Solanum tuberosum L. · Potato
Sloots Aardappelkweekbedrijf B.V.
Solanum tuberosum L. · Potato
Teagasc
Solanum tuberosum L. · Potato
SAKA PFLANZENZUCHT GMBH AND CO KG
Solanum tuberosum L. · Potato
The James Hutton Institute
Solanum tuberosum L. · Potato
Lars Naested
Solanum tuberosum L. · Potato
Station du Comite Nord (FR)
Solanum tuberosum L. · Potato
Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie
Solanum tuberosum L. · Potato
Johanna Anny Pruim-van Loon^^^Hubrecht Jan van Loon^^^Anthonie Elbert van Loon^^^Elbertus Marius van Loon^^^Jan Pieter van Loon^^^Johanna Wilhelmina Maatje van Loon-Kloet
Solanum tuberosum L. · Potato
J.M. Kannegieter, H.Kannegieter,
Solanum tuberosum L. · Potato
C.J.J. Laan, A.S.J. Laan,
Solanum tuberosum L. · Potato
Lars Naested
Solanum tuberosum L. · Potato
IPR BV