The manager and inspector under supervision of the board of regents of Southwest Missouri State University is hereby authorized to cause said lands to be cleared, fenced and put in a state of cultivation, or so much thereof as shall be necessary for present uses, and shall plant such trees, berries or vines as the manager and inspector shall think proper as an experiment, and shall test the various varieties as to their adaptability for the climate, the kinds of fruits and berries as to the kind most adapted for the market and most free from disease, and may hire and employ such force as is necessary to do and perform said work. Neither the manager and inspector or any member of his immediate family shall, either directly or indirectly, engage in the production of fruit or fruit products for sale, or purchase for resale any fruit or fruit products during his term of office.