The commissioner, with approval of the Board of Agriculture and Industries, may make such rules as in his or her judgment may be necessary to conduct properly such farmers' market or markets, both wholesale and retail. The commissioner may provide experienced and competent persons to act as graders and classifiers on such markets. The commissioner may prescribe and designate reasonable grades and classes for farm products, truck crops, fruits, vegetables, and fish products and to enforce the same in all markets in the state. The commissioner may designate separate places on any market where fruits, vegetables, truck crops, and fish products of the different classes and grades shall be handled and kept separate. The commissioner may promulgate rules regulating or prohibiting the sale of cull produce or produce unfit for human consumption at any state farmers' market. Ripe peaches, cantaloupes, tomatoes, and other commodities of a similar nature shall not be classed as cull produce when sold in Alabama for local consumption.