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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.

MIZEN

Terminated

Solanum tuberosum L. · Potato

001. Teagasc, IE

IE
3 records

Mirari

Active

Solanum tuberosum L. · Potato

NEIKER-INSTITUTO VASCO DE INVESTIGACIÓN Y DESARROLLO AGRARIO, S.A.

ES
3 records

Mirage

Protection expired

Solanum tuberosum L. · Potato

KARTZ VON KAMEKE

DE
3 records

Milenia

Active

Solanum tuberosum L. · Potato

Europlant America LLC

DE
3 records

Miłek

Terminated

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
3 records

Solanum tuberosum L. · Potato

Wisconsin Alumni Research Foundation (US)

FR
2 records

Meteor

Active

Solanum tuberosum L. · Potato

Station de Recherche du Comite Nord (FR)/Groupement Interprofessionel de la Pomme de Terre (FR)

FR
3 records

Merano

Active

Solanum tuberosum L. · Potato

Johan Herman Mencke

NL
4 records

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
4 records

Merkawa

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
5 records

Mors

Terminated

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
3 records

Maxilla

Active

Solanum tuberosum L. · Potato

Dr. Karl Heinz Möller im Institut f.Kartoffelforschung - Abt. Kartoffelzüchtung - / Dr. Friedrich Papenhagen / Dr. Karl Tändler

DE
3 records

Meluzyna

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
4 records

Meichip

Active

Solanum tuberosum L. · Potato

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

AT
3 records

Solanum tuberosum L. · Potato

Vesa Velhartice a.s.

CZ
4 records

Melia

Active

Solanum tuberosum L. · Potato

Dr. Sieber und Forster GbR (ForKa)

DE
3 records

Maïwen

Active

Solanum tuberosum L. · Potato

Bretagne-Plants S.C.I.C.A.

FR
3 records

Makhaï

Active

Solanum tuberosum L. · Potato

Station de Recherche du Comité Nord G.I.E.

FR
3 records

Mazur

Active

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
3 records

Lolita

Terminated

Solanum tuberosum L. · Potato

JOHANNA BERGER ^^^Stephan Berger

DE
3 records

Mammut

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE
3 records

Longinus

Active

Solanum tuberosum L. · Potato

NIEDEROESTERREICHISCHE SAATBAUGENOSSENSCHAFT

AT
3 records

Lisbeth

Active

Solanum tuberosum L. · Potato

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

AT
3 records

Mandaga

Active

Solanum tuberosum L. · Potato

Gunta Bebre

LV
3 records

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