As used in this chapter, unless the context requires a different meaning: “District” means one of the districts set forth in § 3.2-1205. “Member” means a member of the Apple Board. “Producer” means any person who, in a calendar year, grows or causes to be grown within the Commonwealth, for sale, a minimum of 5,000 tree run bushels of apples. “Tree run bushel” means a container, with a content of not less than 2,140 cubic inches or more than 2,500 cubic inches, of apples that have not yet been graded or sized.