Graduates with advanced degrees will be in the best position to enter jobs as horticulturists. Bachelor ?s degree holders can work in some applied research and product development positions, but usually only in certain subfields. Those preparing as crop or soil scientists take courses in plant pathology, soil chemistry,entomology, plant physiology, and biochemistry, among others. Advanced degree programs include classroom and fieldwork, laboratory research, and a thesis or dissertation based on independent research. Horticulturists who have advanced degrees usually begin in research or teaching. With experience,