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
VAN RIJN-KWS B.V.
Solanum tuberosum L. · Potato
WESTMAAS| Arie Westmaas
Solanum tuberosum L. · Potato
S.HARTMANS/C.MEIJER BV
Solanum tuberosum L. · Potato
Solana Agrarproducte GmbH & Co
Solanum tuberosum L. · Potato
P.G. KONSTZWAANSHOGK (AGRICO)
Solanum tuberosum L. · Potato
WOLF&WOLF
Solanum tuberosum L. · Potato
ROSEFIELD FARM
Solanum tuberosum L. · Potato
Teagasc Oak Park Research Centre
Solanum tuberosum L. · Potato
Solana Agrar Proukte GmBH & Co.
Solanum tuberosum L. · Potato
Meijer C. BV (NL)
Solanum tuberosum L. · Potato
Tjerk Krijthe
Solanum tuberosum L. · Potato
Germicopa SAS, FR
Solanum tuberosum L. · Potato
MARIEN WINTERS
Solanum tuberosum L. · Potato
SAKA PFLANZENZUCHT GMBH AND CO KG
Solanum tuberosum L. · Potato
R. L. J. MANSHOLT
Solanum tuberosum L. · Potato
GUUS HESELMANS
Solanum tuberosum L. · Potato
Teagasc Crops Research Centre
Solanum tuberosum L. · Potato
REITSMA BARTEL / JANSEN KLOMP MARTIN F.W.
Solanum tuberosum L. · Potato
Mr. J.J.H.M. Allefs
Solanum tuberosum L. · Potato
HESELMANS GUUS
Solanum tuberosum L. · Potato
MR.E.A.BOERHAVE
Solanum tuberosum L. · Potato
Wolf Lange (DE)
Solanum tuberosum L. · Potato
OFFEREINS (NL)
Solanum tuberosum L. · Potato
The James Hutton Institute