Flemming
ActiveBrassica napus var. napus · Rapeseed
DK
4 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.
Crios
ActiveBrassica napus var. napus · Rapeseed
DE
4 records
Equinox
TerminatedBrassica napus var. napus · Rapeseed
DK
4 records
Eraton
ActiveBrassica napus var. napus · Rapeseed
DK
4 records
Credo
ActiveBrassica napus var. napus · Rapeseed
DK
3 records
DK Plastic
TerminatedBrassica napus var. napus · Rapeseed
DK
3 records
Bandit
TerminatedBrassica napus var. napus · Rapeseed
DK
3 records
Bender
ActiveBrassica napus var. napus · Rapeseed
DE
4 records
Wendie
ActiveBrassica napus var. napus · Rapeseed
IT
UA
3 records
Salute
ActiveBrassica napus var. napus · Rapeseed
CZ
3 records
Samurai
TerminatedBrassica napus var. napus · Rapeseed
Serasem, FR
HR
2 records
Quantiko
ActiveBrassica napus var. napus · Rapeseed
HU
2 records
Orelia
TerminatedBrassica napus var. napus · Rapeseed
IT
2 records
Dirigent
ActiveBrassica napus var. napus · Rapeseed
DE
2 records
Exantra
ActiveBrassica napus var. napus · Rapeseed
HU
2 records
Crown
ActiveBrassica napus var. napus · Rapeseed
DK
3 records
Codix
TerminatedBrassica napus var. napus · Rapeseed
HU
2 records
46A75
ActiveBrassica napus var. napus · Rapeseed
CZ
3 records
Rainbow
ActiveBrassica napus var. napus · Rapeseed
PKh128
TerminatedBrassica napus var. napus · Rapeseed
Konrad Krailing
UA
1 record
LID Incanto
ActiveBrassica napus var. napus · Rapeseed
Lidea France SAS, FR
FR
2 records
Teron
ActiveBrassica napus var. napus · Rapeseed
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
UA
2 records
SY Romeo
WithdrawnBrassica napus var. napus · Rapeseed
Deutsche Saatveredelung AG - DSV (DE)
FR
1 record
SPAN
TerminatedBrassica napus var. napus · Rapeseed
Ministry of Agriculture
ES
1 record