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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.

Bartina

Active

Solanum tuberosum L. · Potato

P.I.J. VAN DER WERFF & COOP. DE Z.P.C.

DK ES FR HR IE IT +2
14 records

Granola

Active

Solanum tuberosum L. · Potato

SAKA-RAGIS PFLANZENZUCHT GBR

CZ DE ES HR IE NL +1
16 records

Romano

Active

Solanum tuberosum L. · Potato

Veredelingsbedrijf B.V.

HR HU IE NL SI UA
15 records

Diamant

Active

Solanum tuberosum L. · Potato

F.BRANDS

BE DE ES FR LU MT +1
19 records

Artemis

Active

Solanum tuberosum L. · Potato

M. WINTENS_

BG CZ HR NL SK
15 records

Valor

Active

Solanum tuberosum L. · Potato

Jack Dunnett

CZ LT MT NL
17 records

Alegria

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE LT LU MT
14 records

Solanum tuberosum L. · Potato

Heinrich Böhm

DE HR UA
17 records

Caruso

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht, D

DE HR UA
16 records

Solanum tuberosum L. · Potato

R.P.GRAVELAND

FR NL
15 records

Belmonda

Active

Solanum tuberosum L. · Potato

Solana, D

DE UA
17 records

Arsenal

Active

Solanum tuberosum L. · Potato

Sjefke Allefs

NL UA
20 records

Kuras

Active

Solanum tuberosum L. · Potato

Mr. G. Kuper

AT CZ DE DK FR NL +3
17 records

Dali

Active

Solanum tuberosum L. · Potato

VEREINIGTE BOERDE| Vereinigte Boerde-Altmark- Saaten Magdeburg GmbH / BIERMA H.I.| H.I. Bierma

CZ DE ES FR HR IT +3
14 records

Colette

Active

Solanum tuberosum L. · Potato

SCHUCHMANN| Dr. Walter Schuchmann / BOEHM GEORG| Georg Boehm

BG CZ DE EE HR LT +3
16 records

Resy

Active

Solanum tuberosum L. · Potato

MANSHOLT'S VEREDELINGS-BEDRIJF BV (NL)

CZ ES FR HR IE IT +3
13 records

Danva

Protection expired

Solanum tuberosum L. · Potato

LANDBRUGETS| Landbrugets Kartoffelfond, LKF

AT DE DK ES FR IE +2
15 records

Oscar

Active

Solanum tuberosum L. · Potato

Wageningen UR Plant Breeding

CZ HR HU IT NL SI +1
16 records

Romanze

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE ES HR LT UA
14 records

Rudolph

Active

Solanum tuberosum L. · Potato

Andi John Gordon Gibson

HR NL PT UA
17 records

Roko

Active

Solanum tuberosum L. · Potato

Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.

AT HR HU PL
15 records

Twister

Active

Solanum tuberosum L. · Potato

GW te Winkel

NL PL UA
15 records

Omega

Active

Solanum tuberosum L. · Potato

HETTEMA ZONEN B.V

DE IE UA
17 records

Musica

Active

Solanum tuberosum L. · Potato

J.P.M.Muijsers

HR NL UA
17 records

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