Joseph Tooker Rosa, Jr. was an assistant professor and pioneering vegetable crop scientist whose research on cucurbits and spinach laid the groundwork for lasting advances in plant breeding.
Professor Emeritus of Vegetable Crops, Department Chair
1906-1969
Glen N. Davis was a UC Davis professor and plant breeder who developed disease-resistant melons, onions, and squash. A dedicated mentor, he coauthored the leading global text on cucurbit crops.
Louis Mann was a professor and olericulturist whose pioneering research on onions, garlic, and crop physiology, combined with his teaching and integrity, left a lasting legacy in horticultural science.
James Lyons advanced postharvest physiology and founded California’s Statewide IPM Program, creating lasting models for crop research, pest management, and collaboration.
Ivan W. Buddenhagen was a global leader in plant pathology and crop improvement, advancing disease resistance in bananas, maize, legumes, and garlic while mentoring scientists worldwide.
Professor Emeritus of Vegetable Crops, Department Chair
1928-2022
Lawrence “Larry” Rappaport was a UC Davis professor and department chair whose pioneering work in plant physiology, biotechnology, and community leadership left a lasting impact on science and the Davis community.
Emanuel Epstein was a pioneering UC Davis plant biologist who shaped modern crop nutrition research. His work on ion transport and water use efficiency defined plant physiology worldwide.
Muhammad Marrush was a lecturer in plant sciences for nearly 40 years, remembered for his hands-on teaching, mentorship, and generosity that left a lasting impact on students and colleagues.
Barbara Webster was a UC Davis plant morphologist, mentor, and advocate for women in science. Her research on legumes and her leadership shaped plant biology and academic equity.
Jim Clawson was a UC Extension range specialist whose leadership in public lands policy, ecosystem training, and water quality planning reshaped rangeland management across California.
