Dr. John Cline's research program focuses on the studies are of pomology, in particular Apples as well as Cherries & Peaches.

The Ontario apple industry, valued at approximately $400 million, is the predominant tree fruit crop grown in Ontario. The wide diversity of growing regions, cultivars, rootstocks, and soil types influence the cultural and production of this crop and create a challenging blend of research needs.

The value of the Ontario tender fruit industry, estimated to be valued at approximately $100 million, and next to apples, is the most important tree fruit crop in Ontario. The wide diversity of tender fruit crops, cultivars, rootstocks, and soil types which influence peach, nectarine, cherry, and apricot production creates a unique and challenging blend of research needs to help solve the industry's short and long-term problems.