UC Davis Graduate Studies
Source: https://grad.ucdavis.edu/programs/ghag Parent: https://catalog.ucdavis.edu/departments-programs-degrees/horticulture-agronomy-graduate-group/horticulture-agronomy-phd/
Horticulture and Agronomy
About the Program
Learn More About the Program
Students gain advanced knowledge of Plant Science in one or more of the following areas: agroecology; biotechnology; breeding and crop improvement; crop physiology and production; mineral nutrition; modeling and quantitative horticulture; pest management; plant growth and development; postharvest physiology; revegetation and restoration; and water relations. Students graduate with the qualitative and quantitative skills necessary for professional research and teaching in one or more of the following areas: agroecology, crop improvement; postharvest handling of horticultural commodities; and the production, management and utilization of horticultural and agronomic plants.
Degree Type
Interdisciplinary Graduate Group
Degrees Offered
M.S. Plan I \ M.S. Plan II \ Ph.D. Plan B
Lead Dean
College of Agricultural and Environmental Sciences
Degree Requirements
Administrative ByLaws
Major Code
GHAG
Exceptions
S/U Exception
Admissions and Fellowship Information
Admission Requirements
UC Davis General Admission Requirements \ Program Admissions Requirements
Admission Deadlines
Priority: Jan 5, 2026\ General: Mar 15, 2026\ Space Available: May 1, 2026\
Internal Fellowship Deadlines
Prospective Student Fellowship: Jan 5, 2026\ Continuing Student Fellowship: Jan 15, 2026
Admissions Actions
Program Contact Information
Primary Program Contacts
Graduate Program Coordinator
Program Coordinator\ Kelly Paglia \ (530) 752-1715 | kpaglia@ucdavis.edu
Graduate Program Chair
Graduate Group Chair\ Amelie Gaudin \ agaudin@ucdavis.edu
Additional Contacts
Program Contacts
Advisor: General\ Arnold Bloom \ Horticulture and Agronomy \ (530) 752-1743 | ajbloom@ucdavis.edu
Advisor: General\ Patrick James Brown \ Horticulture and Agronomy \ pjbrown@ucdavis.edu
Advisor: General\ Charlie Brummer \ Horticulture and Agronomy \ ecbrummer@ucdavis.edu
Advisor: General\ Dario Cantu \ Horticulture and Agronomy \ (530) 752-2929 | dacantu@ucdavis.edu
Advisor: Admissions and Primary Contact\ Amelie Gaudin \ Horticulture and Agronomy \ agaudin@ucdavis.edu
Advisor: General\ Matthew Gilbert \ Horticulture and Agronomy \ (530) 752-7846 | megilbert@ucdavis.edu
Advisor: General\ Thomas Gradziel \ Horticulture and Agronomy \ (530) 752-1575 | tmgradziel@ucdavis.edu
Advisor: General\ Brad Hanson \ Horticulture and Agronomy \ (530) 752-8115 | bhanson@ucdavis.edu
Advisor: General\ Bruce Linquist \ Horticulture and Agronomy \ (530) 752-3125 | balinquist@ucdavis.edu
Advisor: General\ Maeli Melotto \ Horticulture and Agronomy \ 530-752-1747 | melotto@ucdavis.edu
Advisor: General\ Cameron Pittelkow \ Horticulture and Agronomy \ (530) 752-0433 | cpittelkow@ucdavis.edu
Advisor: General\ Daniel Potter \ Horticulture and Agronomy \ (530) 754-6141 | dpotter@ucdavis.edu
Advisor: General\ Leslie Roche \ Horticulture and Agronomy \ (530) 752-5583 | lmroche@ucdavis.edu
Advisor: General\ Kenneth Shackel \ Horticulture and Agronomy \ (530) 752-0928 | kashackel@ucdavis.edu
Advisor: General\ Allen Van Deynze \ Horticulture and Agronomy \ (530) 754-6444 | avandeynze@ucdavis.edu
Advisor: General\ Astrid Volder \ Horticulture and Agronomy \ (530) 752-8527 | avolder@ucdavis.edu
Advisor: General\ Maciej Zwieniecki \ Horticulture and Agronomy \ (530) 752-9880 | mzwienie@ucdavis.edu
Graduate Studies Contacts
Senior Academic Advisor\ Sarah Hamid \ (530) 754-2355 | shamid@ucdavis.edu