Dr. Sams received his Ph.D in 1980 in Horticulture/Plant Physiology from Michigan State University, his M.S. in 1976 in Plant & Soil Science/Crop Physiology from the University of Tennessee, and his B.S. in 1974 in Plant & Soil Science from the University of Tennessee. Dr. Sams is a Fellow of the American Society of Horticultural Science. His research interests and expertise include: Fruit and vegetable crop physiology Effects of abiotic stress on disease resistance, yield and quality of fruit and vegetable crops Biofumigation and hydroponic production systems. Mineral nutrition of plants in relation to postharvest quality. Courses: PSS 430 Greenhouse Management. PSS 633 Plant Metabolism.