  Are you certain about mustard regulations being seen as a way to promote mustard because much of the oreiental mustard consumed comes from southern Saskatchewa, eastern Montana, and North Dakota.  The growing season of canola vareis based on avaliable energay, and as such grows faster durring the longer summer days of central Saskatchewan but has a fewer varieties can be grown at higher risk in more southerly areas where it takes longer to grow.  Mustard however takes 120 days to grow and is best suited to the longert growing season further south.