There is hereby established a Pear Commodity Committee consisting of 13 members. Each commodity committee may be increased by one public member nominated by the respective commodity committee and selected by the Secretary. The members of each said committee shall be selected biennially for a term ending on the last day of February of odd numbered years, and such members shall serve until their respective successors are selected and have qualified. The members of each commodity committee shall be selected in accordance with the provisions of § 917.25.