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Diseases

Fusarium Wilt of Onion

Allium cepa L. var. cepa

Fusarium wilt of onion is a disease caused by the specialized fungus Fusarium oxysporum f. sp. cepae, manifesting as basal rot followed by plant wilting and leaf yellowing.

In the reference 96 varieties crop Onion, where this is mentioned in the description.

The primary pathogen is Fusarium oxysporum f. sp. cepae, although the pathocomplex may include other Fusarium species such as F. acuminatum, F. solani, and F. culmorum. Infection development is facilitated by high humidity and temperatures in the range of +22…+27°С, as well as damage to the basal plate by pests, such as the onion fly.

During the growing season, the disease manifests as yellowing and twisting of leaf tips, along with necrosis and dieback of the root system. Abundant white or pinkish mycelium forms on the bulbs, and the tissues of the basal plate soften and become watery. The aggressiveness of the pathogen is linked to the presence of specific effector genes, including the SIX9 gene.

Breeding for resistance is based on the evaluation of lines under infectious backgrounds and the identification of parental forms. Currently, there is no universally accepted letter-coding system for resistance genes to this disease in onions.

General information about the subject — on the page Fusarium wilt and blight.

Sources8

Varieties of Onion 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.

Franzisco

Active

Allium cepa L. var. cepa · Onion

Nickerson Zwaan B.V. (NL)

CZ HR NL PL SK
6 records

Daytona

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

BG CZ HR NL PL
7 records

Centurion

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

CZ HR NL PL
6 records

Tamara

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

BG CZ HR NL
5 records

Vaquero

Active

Allium cepa L. var. cepa · Onion

Nunza B.V

BG HR NL
4 records

Cardinal

Active

Allium cepa L. var. cepa · Onion

SHAMROCK SEED COMPANY

ES NL
5 records

Corona

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

CZ NL PL
5 records

Hyfield

Protection expired

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

CZ NL PL
5 records

Sterling

Active

Allium cepa L. var. cepa · Onion

Seminis Vegetable Seeds

ES NL PL
4 records

Copra

Terminated

Allium cepa L. var. cepa · Onion

BG CZ NL
4 records

Fireball

Active

Allium cepa L. var. cepa · Onion

Seminis Vegetable Seeds

NL PL
3 records

Fallera

Terminated

Allium cepa L. var. cepa · Onion

NUNZA BV

ES NL
3 records

Taresco

Active

Allium cepa L. var. cepa · Onion

Nickerson Zwaan B.V. (NL)

HR NL
3 records

Renate

Terminated

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

NL PL
3 records

Thunderstone

Active

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

NL
4 records

Takmark

Active

Allium cepa L. var. cepa · Onion

Takii & Company Ltd

NL PL
3 records

Takstar

Active

Allium cepa L. var. cepa · Onion

Takii & Company Ltd

NL PL
3 records

Hytech

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden B.V.

NL PL
3 records

Taurus

Terminated

Allium cepa L. var. cepa · Onion

Asgrow Seed Company (US)

CZ FR
3 records

Venecia

Active

Allium cepa L. var. cepa · Onion

BEJO ZADEN BV, NL / DE GROOT EN SLOT B.V., NL

NL
4 records

Lovito

Active

Allium cepa L. var. cepa · Onion

Bayer Holland B.V. (NL)

FR NL
3 records

Safrane

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

HR NL
3 records

Talon

Active

Allium cepa L. var. cepa · Onion

Bejo Zaden BV (NL)

HR NL
3 records

Novista

Active

Allium cepa L. var. cepa · Onion

TAKII EUROPE B V

NL
4 records