Clearfield Confirm is a herbicide bioassay test designed to measure the tolerance of a submitted sample to an imidazolinone herbicide treatment (ie: imazamox) using a seed based germination assay. Herbicide-tolerant Clearfield® varieties are those capable of producing normal seedlings in the presence of the herbicide. Clearfield®  wheat and lentil varieties are both tested by BioVision, although the methods differ slightly for each crop kind.   

Click here to read the Clearfield Confirm Technical Bulletin.