Diseases
Brassica napus L.
A fungal disease of rapeseed affecting all above-ground plant organs throughout the entire growing season. It is caused by fungal species of the genus Alternaria, leading to pod deformation and reduced seed quality.
In the reference 49 varieties crop Rapeseed, where this is mentioned in the description.
The primary pathogens of rapeseed Alternaria leaf spot are the fungi Alternaria brassicae, Alternaria brassicicola, and, less frequently, Alternaria alternata and Alternaria raphani. The disease manifests on leaves as circular or angular spots with concentric zonation or a yellow halo. Sunken dark lesions form on stems and pods, leading to premature pod shattering, trident-shaped deformation of the valves, and the shedding of underdeveloped seeds.
Unlike other rapeseed pathogens, no specific resistance genes or stable pathogen races have been described for Alternaria leaf spot. Protection is based on the use of quantitative resistance and field tolerance. Potential defense factors are associated with the expression of genes encoding chitinases and glucanases; however, breeding remains focused on evaluating samples under field conditions.
General information about the subject — on the page Alternaria blight.
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.
Brassica napus L. · Rapeseed
CAUSSADE SEMENCES
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Brassica napus L. · Rapeseed
MAS SEEDS
Brassica napus L. · Rapeseed
PIONEER OVERSEAS CORPORATION
Brassica napus L. · Rapeseed
LIMAGRAIN EUROPE
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Brassica napus L. · Rapeseed
SERASEM
Brassica napus L. · Rapeseed
Leitzke, Benno
Brassica napus L. · Rapeseed
PIONEER OVERSEAS CORPORATION
Brassica napus L. · Rapeseed
MAS SEEDS
Brassica napus L. · Rapeseed
KWS MOMONT RECHERCHE SARL. FRANCE
Brassica napus L. · Rapeseed
JOHANNES DIECKMANN
Brassica napus L. · Rapeseed
Limagrain UK
Brassica napus L. · Rapeseed
Syngenta Crop Protection AG
Brassica napus L. · Rapeseed
Limagrain UK
Brassica napus L. · Rapeseed
Sholomkevych Ivanna Myronivna, Abramyk Mykhailo Ivanovych, Sytnik Ihor Danylovych,
Brassica napus L. · Rapeseed
Sytnik Ihor Danylovych
Brassica napus L. · Rapeseed
PHYCOMAT EURL
Brassica napus L. · Rapeseed
RAGT 2N S.A.S
Brassica napus L. · Rapeseed
Sytnik Ihor Dynylovych
Brassica napus L. · Rapeseed
Holubiev Kostiantyn Viktorovych, Parii Myrosla Fedorovych,
Brassica napus L. · Rapeseed
Kakorin Mykhailo Oleksiiovych, Holubiev Konstiantyn Viktorovych, Parii Myroslav Fedorovych,
Brassica napus L. · Rapeseed
Kakorin Mykhailo Oleksiiovych, Holubiev Kostiantyn Viktorovych, Parii Myroslav Fedorovych,
Brassica napus L. · Rapeseed
Holubiev Kostiantyn Viktorovych, Parii Myroslav Fedorovych,