former Oregon State University researcher Rich Affeldt [...] found that non-genetically modified canola purchased for the trial tested positive for the glyphosate-tolerant trait found in genetically modified canola. [...] Affeldt said he found just 0.01 percent of the glyphosate-tolerant trait in the non-GMO canola seed he tested. [...] ”Before canola is approved for commercial production in Central Oregon, I recommend that this potential for GM contamination be more thoroughly investigated,” Affeldt wrote.