Fig. 8 From:Exposure to trace amounts of sulfonylurea herbicide tribenuron-methyl causes male sterility in 17 species or subspecies of cruciferous plants Effects of 0.2 and 0.4 mg/L tribenuron-methyl treatments on self-pollinated seed-set. Note: The lower rate of selfing seed-set inB. nigra, B. oleracea, B. rapa,andS. arvensismay be caused by both the treatments and self-incompatibility. Error bars represent ± one standard deviation Back to article page