The Commissioner of Agriculture is elected statewide to a four-year term. There is no limit to the number of terms that can be served. The only requirements to run for the office are that the candidate be a U.S. citizen, a registered voter, at least 30 years of age, and a resident of the state for the preceding seven years.
    The Commissioner of Agriculture is charged with the administration of laws in the areas of agriculture and consumer protection. The Commissioner is responsible for the Department of Agriculture and Consumer Services. The Department has eleven divisions: Standards, Marketing, Dairy Industry, Fruit and Vegetable Inspection, Animal Industry, Inspection, Forestry, Chemistry, Plant Industry, Consumer Services, and Administration.
    HISTORY: The 1868 Constitution created the offices of Surveyor-General and Commissioner of Immigration. These were appointed by the Governor and confirmed by the Senate. The Constitution was amended in 1871 to consolidate the offices under the name of Commissioner of Lands and Immigration. The 1885 Constitution created the office of Commissioner of Agriculture, absorbing the duties of Commissioner of Lands and Immigration. The Commissioner was elected by the people. The 1968 Constitution continued election by the people. 

From Allen Morris's Florida Handbook