The regents of the university of Idaho through the Idaho agricultural experiment station in the college of agriculture of the university of Idaho, or the agent of the university of Idaho, an entity or servant of the state, appointed in writing, as hereinafter provided, is hereby authorized to administer the provisions of this chapter to establish, alter, amend and repeal reasonable standards and requirements as to what shall constitute certified seeds, tubers, plants, and plant parts under the terms of this chapter. Such reasonable standards and requirements shall also comprehend and fix the standards necessary to qualify seeds, tubers, plants, and plant parts for certification hereunder and the procedures for certification by the said college of agriculture or the said agent thereof. All varieties or strains of seed, tubers, plants, and plant parts eligible for certification in the state of Idaho shall be approved by the director of the Idaho agricultural experiment station. Any agent designated hereunder shall be a servant of the state of Idaho and shall be acting in an official capacity for the state of Idaho and under the supervision of the college of agriculture of the university of Idaho and the director of the Idaho experiment station consistent with this chapter.