Ascott
ActiveSolanum tuberosum L. · Potato
Danespo A/S
DK
4 records
Diseases
Potato late blight
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.
Varieties of Potato mentioned in the description
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.
Altus
ActiveSolanum tuberosum L. · Potato
Averis Seeds B.V.
NL
5 records
Annegret
ActiveSolanum tuberosum L. · Potato
Winfried Lange
DE
5 records
Ardeche
ActiveSolanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico B.V.
NL
6 records
Amyla
ActiveSolanum tuberosum L. · Potato
Germicopa SA (FR)
FR
4 records
Ampera
TerminatedSolanum tuberosum L. · Potato
Friedrich Fedhofer
DE
5 records
Ambrine
ActiveSolanum tuberosum L. · Potato
Chantal Lorentz^^^Pierre Billant^^^Bretagne-Plants S.C.I.C.A.
FR
4 records
Alibaba
ActiveSolanum tuberosum L. · Potato
Teagasc
IE
6 records
Albertine
ActiveSolanum tuberosum L. · Potato
Justus Böhm
DE
5 records
Vales Emerald
TerminatedSolanum tuberosum L. · Potato
SCOTTISH CROP RESEARCH INSTITUTE
Red Apple
ActiveSolanum tuberosum L. · Potato
Solanum International Inc.
Pimpernel
ActiveSolanum tuberosum L. · Potato
Landbruks- og matdepartementet, N - 0030 Oslo
Pomeroy
ActiveSolanum tuberosum L. · Potato
Dr Paul Watts, The Department of Agriculture and Rural Development for Northern Ireland
Payette Russet
ActiveSolanum tuberosum L. · Potato
University of Idaho
Nevada
ActiveSolanum tuberosum L. · Potato
NEIDEROSTERREICHISCHE
Lollipop
ActiveSolanum tuberosum L. · Potato
Solanum International Inc.
Excalibur
ActiveSolanum tuberosum L. · Potato
CYGNET POTATO BREEDERS
Voran
TerminatedSolanum tuberosum L. · Potato
RADDATZ (DE)
FR
SK
3 records
Tarpan
TerminatedSolanum tuberosum L. · Potato
IRPT.ZAMARTE
ES
PL
2 records
SINAEDA
TerminatedSolanum tuberosum L. · Potato
Kweekbedrijf-Zpc (NL)
ES
FR
2 records
MIKEL
ActiveSolanum tuberosum L. · Potato
UNION TEMPORAL EMPRESAS
ES
RO
2 records
HUMALDA
TerminatedSolanum tuberosum L. · Potato
Kweekbedrijf-Zpc (NL)
FR
HR
2 records
Frontier Russet
TerminatedSolanum tuberosum L. · Potato
MEYER WILHELM| Wilhelm Meyer in Fa. Golden Geest Kartoffel Erzeuger-gesellschaft mbH
DE
NL
2 records
Dobrin
TerminatedSolanum tuberosum L. · Potato
Kmetijski inštitut Slovenije (SI)
HR
SI
2 records