John Clark heads the largest blackberry-breeding program in the world, and a Research Frontiers video shows how varieties originally developed to withstand the Arkansas heat are making it possible for farmers worldwide to produce those nutritious berries closer to local markets. Follow the process from seedlings to blackberry cobbler at http://researchfrontiers.uark.edu/15447.php. In the current issue of Research Frontiers magazine, Clark discusses his work as an example of “controlled evolution” at http://researchfrontiers.uark.edu/14587.php.

John R. Clark is University Professor of horticulture, Dale Bumpers College of Agricultural and Life Sciences and Division of Agriculture, University of Arkansas System.