Quality and safety of perishable horticultural commodities. Pre-harvest to postharvest research and outreach education on diverse fresh and minimally-processed horticultural foods from annual row crops to tree and vine commodities
Professor Emeritus of Cooperative Extension (Appt. with Landscape Architecture Program in Human Ecology Dept)
Irrigation and runoff management in environmental horticulture; water quality effects on plant growth; water use evaluation of plants for landscape horticulture; biological treatment of runoff water
Professor of Cooperative Extension and Emeritus Director, Postharvest Technology Center
Former Director of the USAID Horticulture Innovation Lab
Postharvest biology and technology of horticultural crops, including regulation of fruit ripening, calcium deficiency disorders, and postharvest control of insects in harvested products
