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
Bretagne-Plants S.C.I.C.A.
Solanum tuberosum L. · Potato
BRETAGNE PLANTS INNOVATION S.A.S./Germicopa Breeding SAS
Solanum tuberosum L. · Potato
Wolfgang Walter
Solanum tuberosum L. · Potato
SCOTTISH CROP RESEARCH INSTITUTE
Solanum tuberosum L. · Potato
VERShININ BORIS MIHAJLOVICh
Solanum tuberosum L. · Potato
BOERHAVE VOF
Solanum tuberosum L. · Potato
CECAB (FR)/Bretagne-plants (FR)
Solanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
Solanum tuberosum L. · Potato
SCOTTISH RESEARCH INSTITUTE
Solanum tuberosum L. · Potato
JAMES HUTTON LTD
Solanum tuberosum L. · Potato
Sloots Aardappelkweekbedrijf B.V.
Solanum tuberosum L. · Potato
JAMES HUTTON LTD
Solanum tuberosum L. · Potato
J.J. Schilt
Solanum tuberosum L. · Potato
Sloots Aardappelkweekbedrijf B.V.
Solanum tuberosum L. · Potato
RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NACZIONALNOJ AKADEMII NAUK BELARUSI PO KARTOFELEVODSTVU I PLODOOVOSHHEVODSTVU»
Solanum tuberosum L. · Potato
Jacob Heidemans
Solanum tuberosum L. · Potato
Karsten Ellenberg
Solanum tuberosum L. · Potato
Austinus Jansen
Solanum tuberosum L. · Potato
GERMICOPA UK
Solanum tuberosum L. · Potato
Station Recherche du Comité Nord (GIE)
Solanum tuberosum L. · Potato
RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NACZIONALNOJ AKADEMII NAUK BELARUSI PO KARTOFELEVODSTVU I PLODOOVOSHHEVODSTVU»
Solanum tuberosum L. · Potato
JEAN MARC ABHIVEN_
Solanum tuberosum L. · Potato
Kweek-en Researchbedrijjf Agrico B.V
Solanum tuberosum L. · Potato
Interseed Potatoes GmbH