There is only one class of corn and one of soybeans, but there are officially six classes of wheat produced in the U.S. that all have different properties and qualities with a few grown in very specific geographical regions.It is much easier to merchandise and trade corn and soybeans than wheat now and always has been. After all, corn is corn and soybeans are soybeans. There is only one class of corn and one of soybeans. There are officially six classes of wheat produced in the U.S. that all have different properties and qualities with a few grown in very specific geographical regions. Half the classes are winter planted and half are spring planted. There are few universally-generic assumptions to be made about wheat, although you read and...