BASF Canada has developed a new wheat line, designated Teal 11A, which exhibits tolerance to imazamox and imazethapyr, imidazolinone herbicides. This new wheat line will be utilized in the CLEARFIELD™ wheat breeding programs.<br>The development of the CLEARFIELD™ wheat line Teal 11A was accomplished using chemically induced seed mutagenesis. The herbicide tolerance trait is conferred by a single point mutation modification of the acetohydroxyacid synthase (AHAS) gene such that this enzyme, the target of imidazolinone herbicides, is no longer affected by imazamox and imazethapyr.