Plant science jobs focus on studying the biological and chemical aspects of plant growth. Careers in plant science may concentrate on agriculture and botany. The duties of an agricultural scientist include studying the growth of crops and finding ways to increase yield or protect against adverse conditions or pests. A botanist may perform research on existing plants or breed new species to meet agricultural needs. Some plant scientists focus on conservation and the environment. Their responsibilities revolve around working to preserve wild plant life and study how plants and trees grow in nature. Other possible jobs for plant science majors include working as an agronomist, ecologist, naturalist, plant geneticist, research assistant, and science teacher to name a few.