Skip to main content

Dr. Jeffrey G. Williamson


Mailing Address:
Fifield Hall
2550 Hull Road
PO Box 110690
Gainesville, Florida 32611

Office: 2113 Fifield Hall
Phone: (352) 273-4823

  • Areas of Research
    • Small fruit horticulture
    • Improving efficiency of small fruit production practices
  • Teaching Responsibilities
    • HOS 6934 - Professional Seminar Preparation
    • FRC 3274 - Tree and Small Fruit Production
  • Educational Background
    • Ph.D., Horticulture, Clemson University (1987)
    • M.S., Horticulture, Auburn University (1983)
    • B.S., Horticulture, Auburn University (1980)
  • Work Experience
    • University of Florida, Professor, 08/98 to present
    • University of Florida, Associate Professor, 08/92 to 08/98 
    • University of Florida, Assistant Professor, 07/87 to 08/92
  • Honors and Awards
    • Florida Association of County Agricultural Agents – Specialist of the Year Award, 2018
    • Florida State Horticultural Society – Presidential Gold Medal Award, 2010
    • Florida State Horticultural Society – Best Paper in Krome Memorial Section, 2009
  • Program Personnel
    • Eric Ostmark, Biological Scientist

Selected Publications

AuthorsYearTitle / DescriptionPublication
Conlan, Elizabeth, T Borisova, E. Smith, J. Williamson, M. Olmstead  2018 The Use of Irrigation for Frost Protection for Blueberry in the Southeastern United States. HortTechnology. 28:660-667.  
Gallardo, R.K., E. Stafne, L. Devetter, Q, Zhang, C. Li, F. Takeda, J. Williamson, W. Yang, W. Cline, R. Beaudry, and R. Allen  2018 Blueberry Producers' Attitudes toward Harvest Mechanization for Fresh Market. HortTechnology. 28:10-16.
Fang, Y.,J.G. Williamson, R.L. Darnell, Y.C. Li, and G.D. Liu  2017 Nitrogen Uptake and Allocation at Different Growth Stages of Young Southern Highbush Blueberry Plants. HortScience. 52: 905-909.
Takeda, F., W.Q. Yang, C.Y. Li, A. Freivalds, K. Sung, R. Xu, B. Hu, J.G. Williamson, and S. Sargent  2017 Applying New Technologies to Transform Blueberry Harvesting. Agronomy – Basel. 7, 33; doi:10.3390/agronomy7020033.
Casamali, B. J.G. Williamson, A.P. Kovaleski, S.A. Sargent and R.L. Darnell  2016 Mechanical Harvesting and Postharvest Storage of Two Southern Highbush Blueberry Cultivars Grafted onto Vaccinium arboreum Rootstocks. HortScience. 51:1503-1510.
Casamali, B., R.L. Darnell, A.P. Kovaleski, J.W. Olmstead, J.G. Williamson  2016 Vegetative and Reproductive Traits of Two Southern Highbush Blueberry Cultivars Grafted onto Vaccinium arboreum Rootstocks. HortScience. 51:880-886.
Kovaleski*, A.P., J.W. Olmstead, J.G. Williamson and R.L. Darnell  2015 Inflorescence bud initiation and bloom in two southern highbush blueberry cultivars.  J. Amer. Soc. Hort. Sci. 140:38-44. 
Kovaleski*, A.P., J.G. Williamson, B. Casamali, and R.L. Darnell  2015 Effects of timing and intensity of summer pruning on vegetative traits of two southern highbush blueberry cultivars.  HortScience. 50:68-73. 
Kovaleski*, A.P., R.L. Darnell , B. Casamali, and J.G. Williamson  2015 Effects of timing and intensity of summer pruning on reproductive traits of two southern highbush blueberry cultivars. HortScience. 50:1486-1491.
Williamson, J.G., L. Mejia, P. Miller, B. Ferguson, and D.Z. Haman  2015 Seasonal water use of southern highbush blueberry plants in a sub-tropical climate. HortTechnology. 25:185-191.
Williamson, J.G. and G. Krewer  2015 Role of plant growth regulators in southern highbush blueberry production under low-chill conditions. J. Amer. Pomological. Soc. 69:11-15.
Marino*, S.R., J.G. Williamson, J.W. Olmstead and P.F. Harmon  2014 Vegetative growth of three southern highbush blueberry cultivars obtained from microprapagation and softwood cuttings in two Florida locations. HortScience 49: 556-561.
Darnell, R.L., N. Cruz-Huerta, and J.G. Williamson  2013 Night temperature and source-sink effects on growth, leaf carbon exchange rate, and carbohydrate accumulation in bell pepper ovaries. J. Amer. Soc. Hort. Sci. 138:331-338. 
Williamson, J.G. and W.O. Cline  2013 Mechanized harvest of southern highbush blueberries for the fresh market: An introduction and overview of the workshop proceedings. HortTechnology 23:416-418. 
Sargent , S.A., A. D. Berry, J. G. Williamson and J. W. Olmstead  2013 Postharvest quality of mechanically and hand-harvested southern highbush blueberry fruit for fresh market.  HortTechnology 23:437-441. 
Buran, T.J., A.K. Saudhu, A.M. Azeredo, A.H. Bent, J.G. Williamson, and L. Gu  2012 Effect of exogenous abscisic acid on fruit quality, antioxidant capacities, and phytochemical contents of southern highbush blueberries. Food Chemistry. 132:1375-1381.
Darnell, R.L., N. Cruz-Huerta, and J.G. Williamson  2012 Night temperature and source sink effects on overall growth, cell number and cell size in bell pepper ovaries. Annals of Botany 110:987-994.
Kao, M.W.S., J.K. Brecht, J.G. Williamson, and D.J. Huber  2012 Ripening Development and Quality of Melting and Non-melting Flesh Peach Cultivars. Hortscience 47:879-885.
Yang, C., W.S. Lee, and J.G. Williamson  2012 Classification of blueberry fruit and leaves based on spectral signatures. Biosystems Engineering 113:351-362.