It is the intent of Congress to provide the indicated protection for new varieties by exercise of any constitutional power needed for that end, so as to afford adequate encouragement for research, and for marketing when appropriate, to yield for the public the benefits of new varieties. Constitutional clauses 3 and 8 of article I, section 8 are both relied upon.

If this chapter is held unconstitutional as to some provisions or circumstances, it shall remain in force as to the remaining provisions and other circumstances.