Tennessee State University

What you'll study

The PhD in Agricultural Sciences combines advanced coursework, directed research and a dissertation that contributes new knowledge to the discipline. Students customise their programme with a major advisor and advisory committee to focus on one or more concentrations such as plant and soil sciences, animal science, food science and technology, entomology, agricultural economics and agribusiness, or extension education and community development.

Typical elements of the curriculum include:

• Advanced core courses in research methods, statistics for agricultural research, and disciplinary theory
• Specialist courses reflecting the chosen concentration, for example advanced plant physiology, soil chemistry and nutrient management, animal nutrition and physiology, post-harvest and food safety, integrated pest management, or agricultural policy and quantitative methods
• Seminar participation to present and critique current research
• A qualifying or comprehensive examination to demonstrate readiness for dissertation work
• Independent research leading to a doctoral dissertation, including proposal development, data collection, analysis and defence
• Opportunities for interdisciplinary collaboration with related units and for engagement with the Tennessee Agricultural Research Center and the Cooperative Extension Program

Entry requirements

Applicants are normally expected to hold a relevant master's degree (for example in agriculture, plant sciences, animal sciences, soil science, food science, agricultural economics or a closely related field) from an accredited institution. Candidates with exceptional record and appropriate research experience may be considered from a strong bachelor’s background combined with relevant professional experience.

• A competitive graduate GPA in prior graduate coursework; specific minimums are set by the Graduate School and departmental guidelines
• Evidence of research potential, typically a curriculum vitae, statement of research interests or proposal, and examples of prior scholarly work if available
• Letters of recommendation (usually two or three) from academic or professional referees who can comment on research aptitude
• Standardised tests (such as the GRE) may be required or optional depending on departmental policy; international applicants must demonstrate English proficiency (for example via TOEFL or IELTS) unless exempted
• Admission interviews or contact with potential faculty advisors are commonly recommended to align research interests

Career prospects

Graduates of a PhD in Agricultural Sciences pursue roles across academia, government, industry and non-governmental organisations. Common career paths include:

• University faculty and research scientist positions conducting and leading research programmes
• Research and technical leadership in federal and state agencies such as agricultural research services and natural resource departments
• Senior research, development and management roles in agribusiness, food processing and biotechnology companies
• Extension specialists and outreach leaders working with producers, communities and stakeholders to apply research findings
• Policy analysts, consultants and programme directors for non-profits and international development organisations focused on food security, sustainable agriculture and environmental stewardship

Why study at Tennessee State University

Tennessee State University is a historically Black university with a long-standing commitment to agricultural research and community engagement. PhD students benefit from applied research infrastructure including research farms, laboratories and active Extension networks that connect scholarship to regional and national agricultural challenges. Faculty bring expertise across crop and animal production, sustainable systems, food science, entomology and agricultural economics, enabling interdisciplinary dissertation opportunities.

Students also gain from the university’s partnerships with state agricultural agencies and local producers, which support field research, internships and outreach. Funding opportunities such as assistantships and research grants are commonly available to doctoral students, and the Nashville location provides access to a regional agricultural economy and a growing research and policy community.