GFM Network News

In this video from the Canola Council of Canada, Angela Barnes, the council’s agronomist for southern Alberta, 
holds what appears — from the ground up — to be a fairly healthy canola plant. But the roots of the same plant 
(inset photo) show it is heavily infected with clubroot galls. This hidden spread of clubroot illustrates why a breakdown in resistance may not be immediately obvious in a canola field.

Key source of clubroot resistance goes AWOL

‘Grandparent’ can defeat new mutated clubroot strains but somehow it doesn’t get passed down

The ‘grandparent’ of clubroot resistance in most Canadian canola varieties is resistant to new virulent strains of clubroot — but its offspring aren’t. “It’s possible that, in the course of breeding, some of the resistant genes were lost,” said provincial research scientist Rudolph Fredua-Agyeman. European clubroot differential (ECD) 04 is a key source of clubroot […] Read more