Edmund O. Brown
In 2012 a comparative yield trial involving 38 cultivated varieties of sweet potatoes (Ipomoea batatas) was conducted by Edmund O. Brown II and Pamela Jean Brown at two locations on their farm, known as New Hope Farms in eastern Jasper County, Missouri. The following is a description of the trial, and of which clonal varieties were found by Mr. and Mrs. Brown to yield better and worse.