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
Germicopa Breeding
Solanum tuberosum L. · Potato
YaShINA IZOL'DA MAKSIMOVNA / SIMAKOV EVGENIJ ALEKSEEVICh / PISAREV BORIS ANATOL'EVICh / APShEV HUSEJN HAMIDOVICh
Solanum tuberosum L. · Potato
Teagasc Oak Park Research Centre
Solanum tuberosum L. · Potato
Germicopa Breeding S.A.S
Solanum tuberosum L. · Potato
Johannes M.H. van den Oord
Solanum tuberosum L. · Potato
Teagasc
Solanum tuberosum L. · Potato
ROCUS PIETER GRAVELAND
Solanum tuberosum L. · Potato
Zsolt Géza Polgár^^^Zsolt Vaszily^^^István Wolf^^^Aliz Bilinszki
Solanum tuberosum L. · Potato
Teagasc
Solanum tuberosum L. · Potato
LANGE FRANK / LANGE WINFRID
Solanum tuberosum L. · Potato
Heinrich Böhm
Solanum tuberosum L. · Potato
Teagasc
Solanum tuberosum L. · Potato
SCHUCHMANN| Dr. Walter Schuchmann / BOEHM GEORG| Georg Boehm
Solanum tuberosum L. · Potato
van Loon, J.P.
Solanum tuberosum L. · Potato
IPR B.V., Helena Geeske Hoogland-Krüse
Solanum tuberosum L. · Potato
JEAN MARC ABHIVEN_
Solanum tuberosum L. · Potato
Teagasc Oak Park Research Centre
Solanum tuberosum L. · Potato
Landbrugets Kartoffelfond, Foraedlst., DK-7184 Vandel
Solanum tuberosum L. · Potato
Winfried Lange, Frank Lange
Solanum tuberosum L. · Potato
STET HOLLAND RESEARCH B.V.
Solanum tuberosum L. · Potato
IRISH SEED POTATOES LTD
Solanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
Solanum tuberosum L. · Potato
Karsten Ellenberg
Solanum tuberosum L. · Potato
SELECTIEBEDRIJF KOOI