Can we replace canola with GMO mustard? Mustard grows better in heat and drought than rapeseed. New robust oilseed crop can resist global warming. "Until now it has been an undefeatable challenge that mustard seeds are full of the bitter defense compounds that give mustard its characteristic flavor. Consequently, the protein-rich seed meal that remains after the oil is pressed out of the seeds is useless as animal feed." Scientists may have found a solution: GMO mustard.