(a) The Secretary may at any time terminate the provisions of this part by giving at least one day's notice by means of a press release or in any other manner which he may determine.

(b) The Secretary shall terminate the provisions of this part at the end of any fiscal period whenever he finds that such termination is favored by a majority of producers who, during the preceding fiscal period, have been engaged in the production for market of fruit: Provided, That such majority have, during such period, produced for market more than 50 percent of the volume of such fruit produced for market, but such termination shall be effective only if announced on or before July 31 of the then current fiscal period.

(c) The Secretary shall conduct a referendum six years after the effective date of this paragraph and every sixth year thereafter to ascertain whether continuance of this part is favored by producers. The Secretary may terminate the provisions of this part at the end of any fiscal period in which the Secretary has found that continuance of this part is not favored by producers who during a representative period, determined by the Secretary, have been engaged in the production for market of the fruit in the production area. Such termination shall be announced on or before July 31 of the fiscal period.

(d) The provisions of this part shall, in any event, terminate whenever the provisions of the act authorizing it cease to be in effect.