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| Harold R. Olmo | |
|---|---|
| Name | Harold R. Olmo |
| Birth date | 1909-08-11 |
| Birth place | Watsonville, California |
| Death date | 2006-11-25 |
| Death place | Santa Rosa, California |
| Fields | Viticulture, Ampelography, Horticulture |
| Workplaces | University of California, Davis, United States Department of Agriculture |
| Alma mater | University of California, Berkeley, University of California, Davis |
| Known for | Grape breeding, development of cultivars, international viticultural exploration |
Harold R. Olmo was an American viticulturist and grape breeder whose work shaped twentieth-century grape cultivation in California and worldwide. He combined plant breeding, field research, and international exploration to develop new cultivars and viticultural practices used by growers, researchers, and institutions. His career at University of California, Davis and collaborations with agencies like the United States Department of Agriculture influenced grape production, nursery practices, and academic programs in viticulture and enology.
Born in Watsonville, California, Olmo studied agriculture and plant sciences at University of California, Berkeley and later at University of California, Davis, where he pursued degrees that led to a career in grape research. While a student he encountered faculty and researchers associated with California Agricultural Experiment Station and figures from institutions such as Hopland Research and Extension Center, which shaped his early exposure to field trials and cultivar evaluation. His formative years put him in contact with contemporaries at Stanford University and practitioners from California viticultural regions like Santa Clara Valley and Napa Valley.
Olmo joined the staff of University of California, Davis and worked closely with faculty in departments connected to Agricultural Experiment Station programs and cooperative projects with the United States Department of Agriculture. He led studies on cold hardiness, phenology, and rootstock performance across regions including Central Valley (California), Sonoma County, and Santa Barbara County, contributing to extension outreach with partners such as California State University, Fresno and industry groups like the California Association of Winegrape Growers. His fieldwork intersected with international missions that brought him into contact with institutions including Instituto Nacional de Investigaciones Agrícolas, Commonwealth Scientific and Industrial Research Organisation, and research centers in countries such as Australia, Argentina, and Chile.
Olmo developed and evaluated grape varieties and rootstocks through crosses, selections, and international introductions, producing cultivars that affected table grape, wine grape, and raisin industries. He released varieties that were trialed in collaboration with nurseries in California, Spain, and South Africa, and influenced plant material exchanges involving the National Clonal Germplasm Repository and collections at UC Davis Department of Viticulture and Enology. His breeding emphasized traits useful to regions like Central Valley (California), San Joaquin Valley, and Mediterranean-type climates such as those in Portugal and Italy.
At University of California, Davis, Olmo managed experimental vineyards, coordinated germplasm collections, and supervised graduate students connected to programs at UC Davis Graduate School of Management and the Department of Viticulture and Enology. He published studies and reports that informed agencies including California Department of Food and Agriculture and organizations like the American Society for Enology and Viticulture. His research collaborations extended to laboratories at Lawrence Berkeley National Laboratory and intermediary work with commodity boards in California Citrus and the raisin industry, situating his contributions within broader agricultural research networks.
Olmo received recognition from academic and industry organizations, with honors accorded by groups such as the American Society for Enology and Viticulture, the California Farm Bureau Federation, and university award committees at University of California. He participated in international conferences attended by delegates from International Organisation of Vine and Wine, Food and Agriculture Organization, and regional symposiums in Bordeaux and Burgundy, where his work on cultivar performance and germplasm exchange was cited by peers from institutions like INRA and CSIRO.
Olmo's legacy is preserved in grape collections, cultivar pedigrees, and the institutional archives at University of California, Davis and the National Clonal Germplasm Repository. His influence appears in practices adopted by growers in regions such as Napa Valley, Sonoma County, and export markets tied to Chile and Australia, and in the careers of students who joined faculties at Cornell University, Washington State University, and Oregon State University. He died in Santa Rosa, California, leaving a record of plant introductions and breeding work that continues to inform research at institutions like UC Davis Robert Mondavi Institute for Wine and Food Science and collections maintained by the California Rare Fruit Growers.
Category:American horticulturists Category:University of California, Davis faculty Category:1909 births Category:2006 deaths