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Diseases

Sclerotinia stem rot of rapeseed

Brassica napus var. napus

A fungal disease of rapeseed caused by the pathogen Sclerotinia sclerotiorum, manifesting as damage to stems and pods after flowering. It leads to premature ripening, plant lodging, and the formation of black sclerotia within the tissues.

In the reference 170 varieties crop Rapeseed, where this is mentioned in the description.

Plant infection occurs primarily via ascospores that settle on flower petals. As infected petals fall onto leaves and stems, they become primary infection foci. At the sites of infection, watery, weeping spots appear, which become covered with a white, cottony mycelial growth.

Typical symptoms include discoloration and softening of the stem, causing the plants to snap and lodge. In dry conditions, the mycelial growth may disappear, leaving the tissues with a dry and bleached appearance. Sclerotia—the resting structures of the fungus—form inside the damaged stems.

Complete monogenic resistance to Sclerotinia stem rot is absent in rapeseed cultivars. Breeding is focused on creating quantitative field resistance by accumulating polygenic complexes; however, there are currently no commercially available cultivars with identified resistance genes to this pathogen.

General information about the subject — on the page White mold.

Sources8

Varieties of Rapeseed 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.

PR 44 D 06

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DK FI FR HR UA
10 records

PT 312

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

CZ DE DK FR PL UA
13 records

PT 234

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DE DK HR UA
13 records

PT 303

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

CZ DE DK FR PL
11 records

PR 44 W 22

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DK FR HR UA
9 records

PT 314

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

DE DK FR PL UA
11 records

PR 46 W 21

Active

Brassica napus var. napus · Rapeseed

PIONEER SALES| Pioneer Hi-Bred Northern Europe Sales Division GmbH

DE DK HR UA
9 records

PT 271

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DE HR UA
12 records

PT 322

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

DE DK FR UA
13 records

PT 279 CL

Active

Brassica napus var. napus · Rapeseed

PRUVOT JEAN-CLAUDE

DE HR
11 records

PT 248

Terminated

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION

DE DK PL UA
8 records

ES Hydromel

Active

Brassica napus var. napus · Rapeseed

Euralis Semences, F

ES HR
8 records

ES Neptune

Active

Brassica napus var. napus · Rapeseed

Euralis Semences FR

CZ FR HR
10 records

INV 1310

Active

Brassica napus var. napus · Rapeseed

Dirk Decherf

FR PL UA
8 records

Xenon

Active

Brassica napus var. napus · Rapeseed

Norddeutsche, D

CZ DE DK HR PL
14 records

Architect

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

CZ DE DK FR PL UA
19 records

DK Exstorm

Active

Brassica napus var. napus · Rapeseed

Nelly Guguin, Jean-Pierre Despeghel,

CZ DE FR PL UA
14 records

Baldur

Protection expired

Brassica napus var. napus · Rapeseed

Paulmann W., Dr., in c,o Saatzucht Hans Lembke (DE)/Frauen M., Dr., in c,o NPZ Hans-Georg Lembke KG (DE)

CZ DE DK HR PL
12 records

Atora

Active

Brassica napus var. napus · Rapeseed

Norddeutsche, D

CZ DE PL
13 records

Arkansas

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

CZ DE DK FR PL UA
15 records

Astronom

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

CZ DE FR UA
12 records

PT264

Active

Brassica napus var. napus · Rapeseed

PRUVOT JEAN-CLAUDE

FR HR PL UA
14 records

Kicker

Active

Brassica napus var. napus · Rapeseed

Norddeutsche, D

CZ DE PL
11 records

Trezzor

Active

Brassica napus var. napus · Rapeseed

Ragt, F

CZ DK FR PL
10 records