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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.

Amazzonite

Active

Brassica napus var. napus · Rapeseed

RAGT 2n, FR

CZ DE DK FR UA
12 records

Gordon KWS

Active

Brassica napus var. napus · Rapeseed

KWS, D

CZ FR UA
12 records

SY Iowa

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations AG

DE DK PL UA
11 records

Anderson

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

DK FR PL UA
11 records

SY Marten

Active

Brassica napus var. napus · Rapeseed

Syngenta Crop Protection,CH

CZ PL UA
9 records

Desperado

Active

Brassica napus var. napus · Rapeseed

Dieter Stelling

CZ DK FR PL UA
14 records

ES Capello

Active

Brassica napus var. napus · Rapeseed

LIDEA FRANCE SAS

CZ FR PL UA
11 records

Batis

Active

Brassica napus var. napus · Rapeseed

Dieter Stelling

CZ DE PL UA
9 records

Visby

Active

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

DE HR PL UA
15 records

Clarus

Active

Brassica napus var. napus · Rapeseed

DSV, D

CZ DE PL
9 records

PT200CL

Active

Brassica napus var. napus · Rapeseed

Pruvot Kraling

CZ FR HR UA
9 records

LG Aphrodite

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

CZ DK FR PL UA
10 records

Parcours

Active

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

DE DK PL
9 records

Arabella

Active

Brassica napus var. napus · Rapeseed

Nickerson International Research SNC (FR)

CZ DE DK FR SE
13 records

LG Adamant

Active

Brassica napus var. napus · Rapeseed

LIMAGRAIN EUROPE

CZ DK FR PL UA
10 records

LID Invicto

Active

Brassica napus var. napus · Rapeseed

Sandrine LEGROS

CZ DE FR PL UA
11 records

ES Silene

Active

Brassica napus var. napus · Rapeseed

Patris Zheanson

CZ DE DK FR UA
9 records

SY Floretta

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations,CH

CZ PL UA
8 records

Libravo

Active

Brassica napus var. napus · Rapeseed

DEUTSCHE SAATVEREDELUNG AG

CZ DE DK ES PL
9 records

SY Alibaba

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations AG

CZ DE DK FR PL
8 records

ES Mercure

Application submitted

Brassica napus var. napus · Rapeseed

Euralis Semences FR

CZ FR HR PL
11 records

Bonanza

Active

Brassica napus var. napus · Rapeseed

Serasem, FR

CZ FR PL UA
10 records

ES Odice

Active

Brassica napus var. napus · Rapeseed

Patrice Jeanson

CZ HR UA
10 records

Albatros

Active

Brassica napus var. napus · Rapeseed

Thierry Ronsin

FR HR UA
10 records