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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.

Sources8

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.

Platina

Active

Solanum tuberosum L. · Potato

JANSEN A.

AT BE CZ DE EE FR +7
29 records

Innovator

Active

Solanum tuberosum L. · Potato

ZPC Portugal

BG CZ IT LT NL PL +2
32 records

Colomba

Active

Solanum tuberosum L. · Potato

ROCUS PIETER GRAVELAND

NL PL UA
32 records

Velox

Active

Solanum tuberosum L. · Potato

SAKA-RAGIS PFLANZENZUCHT GBR

AT BG CZ DE EE FI +6
28 records

Rodeo

Active

Solanum tuberosum L. · Potato

RIAN STEKELENBURG / F. BORN_ / MARTIN F. W. JANSEN KLOMP

EE FR GR HR IT LT +2
25 records

Fabula

Active

Solanum tuberosum L. · Potato

Kweekbedrijf D. Biemond B.V.

GR HR IT NL PL SI +1
27 records

Morene

Active

Solanum tuberosum L. · Potato

S.BRUNIA

BE CZ DE DK ES FR +5
29 records

Désirée

Active

Solanum tuberosum L. · Potato

ZPC

AT CZ DE ES FR HR +6
26 records

Carrera

Active

Solanum tuberosum L. · Potato

RIAN STEKELENBURG / F. BORN_ / MARTIN F. W. JANSEN KLOMP

CZ EE FR HR IT NL +3
26 records

Jelly

Active

Solanum tuberosum L. · Potato

Kartoffelzucht Böhm, Inh. Gebr. Böhm Kg.

BG CZ DE HR LU PL +2
29 records

Voyager

Active

Solanum tuberosum L. · Potato

Ytzen P. van der Werff

CZ FR GR IT NL SK
27 records

Folva

Active

Solanum tuberosum L. · Potato

Lars Bach

AT BG CZ DE DK EE +8
25 records

Mozart

Active

Solanum tuberosum L. · Potato

RIAN STEKELENBURG / MARTIN F. W. JANSEN KLOMP / W. SANDERS / B. BORKHUIS

CZ HR IT NL PL SK +1
26 records

Chérie

Active

Solanum tuberosum L. · Potato

GERMIMCOPA BREEDING (GERMICOPA SAS)

DE FR HU PL SK UA
28 records

Sifra

Active

Solanum tuberosum L. · Potato

Rocus Pieter Graveland, Cornelus Johannus Biemond.

HR IT MT NL UA
25 records

Ukama

Active

Solanum tuberosum L. · Potato

Trip, J.

AT BE CZ DE DK ES +9
23 records

Saturna

Active

Solanum tuberosum L. · Potato

STADER| Stader Saatzucht eG

AT CZ DE EE FI FR +7
21 records

Laura

Active

Solanum tuberosum L. · Potato

Richard Schuchmann^^^Heinrich Böhm

BG CZ DE HR HU LT +4
25 records

Carlita

Active

Solanum tuberosum L. · Potato

JA Crebas (NL)

BE BG DE DK EE FR +6
20 records

Crisps4all

Active

Solanum tuberosum L. · Potato

ROCUS PIETER GRAVELAND

FR NL UA
28 records

Arizona

Active

Solanum tuberosum L. · Potato

Sjefke Allefs

MT NL UA
27 records

Raja

Active

Solanum tuberosum L. · Potato

WOLF EN WOLF BV

BG CZ DK EE FR HR +8
22 records

Jaerla

Active

Solanum tuberosum L. · Potato

ZPC Portugal

AT DE DK ES FR GR +7
22 records

Cleopatra

Active

Solanum tuberosum L. · Potato

ZPC

BE DE DK ES FR HR +6
19 records

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