Jazz KWS
ActiveBrassica napus var. napus · Rapeseed
Andreas Gertz
DE
6 records
Diseases
Phoma stem canker of oilseed rape
Brassica napus var. napus
A fungal disease of oilseed rape caused by Leptosphaeria maculans and L. biglobosa, affecting all plant organs and capable of causing crop failure due to the destruction of the root collar.
In the reference 529 varieties crop Rapeseed, where this is mentioned in the description.
The pathogens of the disease are two fungal species: the more aggressive Leptosphaeria maculans and the less aggressive Leptosphaeria biglobosa, whose anamorph stage is known as Phoma lingam. The pathogen exhibits high genetic variability, manifesting in the presence of various pathotypes that differ in virulence.
The disease affects oilseed rape at all growth stages. Light spots with pycnidia appear on seedlings, and gray-brown spots with a dark margin appear on leaves. The most dangerous symptom is the formation of necrotic cankers at the stem base, which lead to tissue cracking, impaired nutrient uptake, and plant lodging.
Resistance of oilseed rape to Phoma stem canker includes qualitative resistance based on specific Rlm genes (e.g., Rlm4, Rlm7) that interact with the pathogen's avirulence genes. Quantitative polygenic resistance is also employed, aimed at slowing down the spread of infection in stem tissues and petioles.
General information about the subject — on the page Phoma rot.
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.
DK Expose
ActiveBrassica napus var. napus · Rapeseed
MONSANTO TECHNOLOGY
PL
4 records
INV1199
ActiveBrassica napus var. napus · Rapeseed
Dirk Decherf
UA
5 records
DK Exodus
TerminatedBrassica napus var. napus · Rapeseed
Nelly Guguin, Jean-Pierre Despigel,
CZ
UA
5 records
DK Expiro
ActiveBrassica napus var. napus · Rapeseed
MONSANTO TECHNOLOGY
CZ
PL
4 records
DK Exalte
ActiveBrassica napus var. napus · Rapeseed
MONSANTO TECHNOLOGY
FR
PL
6 records
DK Exotter
ActiveBrassica napus var. napus · Rapeseed
MONSANTO TECHNOLOGY
CZ
PL
4 records
Bessito
ActiveBrassica napus var. napus · Rapeseed
Sandrine LEGROS
FR
UA
5 records
RGT Kanzzas
ActiveBrassica napus var. napus · Rapeseed
RAGT 2n, FR
DK
FR
5 records
Roxet
TerminatedBrassica napus var. napus · Rapeseed
Syngenta Crop Protection AG
DE
FR
7 records
PT256
ActiveBrassica napus var. napus · Rapeseed
PIONEER OVERSEAS CORPORATION US
DK
FR
6 records
PT229CL
ActiveBrassica napus var. napus · Rapeseed
PIONEER OVERSEAS CORPORATION
CZ
UA
4 records
Pirola
Protection expiredBrassica napus var. napus · Rapeseed
KWS Kleinwanzlebener Saatzucht AG (DE)
DE
FR
7 records
Quartz
ActiveBrassica napus var. napus · Rapeseed
KWS Momont Recherche Sarl
DK
PL
5 records
Otello KWS
ActiveBrassica napus var. napus · Rapeseed
Andreas Gertz
DE
DK
6 records
NK Combo
ActiveBrassica napus var. napus · Rapeseed
Syngenta Crop Protection AG, CH
DE
FR
5 records
NK Silic
ActiveBrassica napus var. napus · Rapeseed
Syngenta Crop Protection AG, CH
CZ
FR
6 records
NK Koster
TerminatedBrassica napus var. napus · Rapeseed
Syngenta Crop Protection AG, CH
DK
FR
5 records
Metropol
ActiveBrassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
DE
PL
6 records
Memphis
ActiveBrassica napus var. napus · Rapeseed
JOHANNES DIECKMANN
CZ
UA
4 records
KWS Dingos
ActiveBrassica napus var. napus · Rapeseed
KWS SAAT SE&CO.KGaA, DE
FR
HR
4 records
KWS Teos
ActiveBrassica napus var. napus · Rapeseed
KWS SAAT SE&CO.KGaA, DE
FR
HR
5 records
Kocazz
ActiveBrassica napus var. napus · Rapeseed
RAGT 2n, FR
DK
FR
4 records
Kalif
TerminatedBrassica napus var. napus · Rapeseed
SARL ADRIEN MOMONT ET FILS, FR
DK
FR
6 records