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Diseases

Blackleg of potato

Solanum tuberosum L.

A bacterial disease of potatoes caused by pectolytic bacteria that affects stems and tubers, leading to their decay.

In the reference 179 varieties crop Potato, where this is mentioned in the description.

The disease is caused by bacteria of the Enterobacteriaceae family, including the species Pectobacterium atrosepticum, Pectobacterium carotovorum subsp. carotovorum, and the genus Dickeya. The pathogens are classified by species and temperature preferences: members of Dickeya are typically aggressive in warm conditions, whereas P. atrosepticum is more common in cooler climates.

Symptoms on the aerial parts include yellowing and upward rolling of leaves, thinning and blackening of the stem base, which easily separates from the roots. In tubers, the disease manifests as soft rot starting from the stolon end, where the flesh acquires a slimy consistency and a foul odor.

Resistance to blackleg is a polygenic trait with an additive inheritance pattern. There are no varieties with absolute resistance, therefore breeding work is based on the use of wild species, such as Solanum chacoense or S. berthaultii, and the assessment of complex field resistance.

General information about the subject — on the page Blackleg.

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.

Cabaret

Active

Solanum tuberosum L. · Potato

PLANT BREEDING INTERNATIONAL

8 records

Hansa

Active

Solanum tuberosum L. · Potato

VEREINIGTE SAATZUCHTEN (DE)

DE DK FR LU NL
8 records

Record

Active

Solanum tuberosum L. · Potato

Potato Marketing Board Edinbourgh Maner Place (UK)

FI HR IE SE
6 records

Osiris

Active

Solanum tuberosum L. · Potato

Winfried Lange, Frank Lange

DE NL UA
9 records

Flavia

Active

Solanum tuberosum L. · Potato

Saka-Ragis (DE)

CZ DE HR
8 records

Ambo

Active

Solanum tuberosum L. · Potato

Teagasc

ES IE NL
10 records

Sierra

Active

Solanum tuberosum L. · Potato

PLANT BREEDING INTERNATIONAL CAMBRIDGE

CZ PL
9 records

Sevim

Active

Solanum tuberosum L. · Potato

Ludwig Simon

DE UA
8 records

Lamoka

Active

Solanum tuberosum L. · Potato

Walter DeJong, Cornell University

6 records

Vanilla

Active

Solanum tuberosum L. · Potato

Teagasc Crops Research Centre

IE
9 records

Solanum tuberosum L. · Potato

Sygnet PB, GB

NL
10 records

Tempora

Protection expired

Solanum tuberosum L. · Potato

Nordkartoffel Zuchtgesellschaft mbH

CZ DE NL SK
6 records

Magda

Active

Solanum tuberosum L. · Potato

SAATZUCHT FRITZ LANGE KG, DE

CZ LV SK
7 records

Carola

Protection expired

Solanum tuberosum L. · Potato

W.WALLMULLER

DE ES NL
6 records

Rossini

Active

Solanum tuberosum L. · Potato

SAKA PFLANZENZUCHT GMBH AND CO KG

DE NL
8 records

Isle of Jura

Terminated

Solanum tuberosum L. · Potato

Cyngent Potato Breed. (GB)

BG SI
7 records

Florence

Active

Solanum tuberosum L. · Potato

SAATZUCHT FRITZ LANGE KG

DE NL
7 records

Colleen

Active

Solanum tuberosum L. · Potato

Teagasc

ES IE
8 records

Shannon

Active

Solanum tuberosum L. · Potato

Teagasc Oak Park Research Centre

IE
8 records

Jule

Active

Solanum tuberosum L. · Potato

SOLANA SEEDS UNITED KINGDOM LTD. UNIT 4

DE
8 records

Gemson

Active

Solanum tuberosum L. · Potato

The James Hutton Institute

NL
7 records

Buffalo

Active

Solanum tuberosum L. · Potato

Teagasc Crops Research Centre

IE
7 records

Bonnie

Active

Solanum tuberosum L. · Potato

SCOTTISH RESEARCH INSTITUTE

NL
9 records

Almonda

Active

Solanum tuberosum L. · Potato

SOLANA GMBH & CO KG

NL
7 records