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George C. Elliott, Associate Professor of Horticulture
Experience and Education | Publications |

Field of Specialization/Research Interests:

              I am interested in Plant Physiology, Soil Microbiology, and Soil-Plant Relations, and their application to Floriculture and Ornamental Horticulture.

              My research is focused on the biological, chemical and physical properties of container media used for production of greenhouse and nursery crops.  In plant mineral nutrition, I have studied plant responses to nitrogen and phosphorus nutrition, including the physiology of plant response to ammonium and nitrate nutrition, and simultaneous influx and efflux of phosphate from roots of intact plants.  I have evaluated nutrient availability from controlled-release fertilizers and composts.  In addition, I have studied water retention, lime reactions, pH buffering, and pH adjustment in soilless potting mixes. 

              My most recent research has been concerned with the the use of biological controls for soilborne diseases affecting container-grown crops.  Commercial biological inoculants have been evaluated for the prevention of blackleg disease caused by the pathogen  Pythium ultimum  in geraniums.  These microbial inoculants are also being evaluated for the alleviation of abiotic stress or growth stimulation in the absence of pathogen pressure.   Molecular markers have been developed to identify and quantify specific microbial inoculants in soilless potting mixes. 

              The direction of my research program is evolving.  My attention is currently focused on issues related to sustainability.   Root-zone management, especially irrigation, is coming to the forefront for minimizing the impact of high-intensity production in greenhouse and nursery operations. 

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Ph.D.  1981  North Carolina State University; Horticultural Science and Soil Science
M.S.   1978  North Carolina State University; Horticultural Science
B.S.    1975  University of Massachusetts; Plant and Soil Science
B.A,   1967  Occidental College; Philosophy

Professional Experience:

1989             Assistant/Associate Professor of Horticulture, University of Connecticut

1984-1989    Assistant Professor of Floriculture, Pennsylvania State University
1981-1983    Postgraduate Researcher, University of California, Davis
1975-1981    Graduate Assistant, North Carolina State University

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Pasura, A. and Elliott G.C. 2007. Efficacy of microbial inoculants for control of blackleg disease of geranium in soilless potting mixes, 2006. Plant Disease Management Reports 1:OT010

Pasura, A. and Elliott G.C. 2006. Efficacy of proprietary soilless potting mixes with Subtilex for control of blackleg disease of geranium, 2005. Biol & Cult Tests 21:O013

Pasura, A. and Elliott G.C. 2006. Efficacy of microbial inoculants for control of blackleg disease of geranium, 2005. Biol & Cult Tests 21:O014

Pasura, A. and Elliott G.C. 2005. Efficacy of Microbial Inoculants For Control Of Blackleg Disease Of Geranium, 2004.  Biol & Cult Tests 20:O010

Harvey M.P., Elliott G.C. and Brand M.P. 2004.  Growth Response of Hakonechloa macra (Makino) ‘Aureola’ to Fertilizer Formulation and Concentration, and to Dolomitic Lime in the Potting Mix. HortScience 39:261-266.

Elliott, G.C. and Elmer, W.H. 2003.  Evaluation of microbial inoculants for control of Rhizoctonia root and crown rot of vinca, 2002.  Biological and Cultural Tests Report 18:O015.

Chiari, A., Elliott, G.C., and Bridgen,  M.P.  1999. Resin-coated fertilizers affect postproduction growth, but not flowering, of potted Alstroemeria.  HortScience 34(4):657-659.

Smith, M.A., Elliott, G.C., and Bridgen,  M.P.  1998.  Calcium and nitrogen fertilization of greenhouse-grown Alstroemeria.  HortScience 33:55-59.

Bugbee, G.J. and Elliott, G.C.  1998.  Leaching of nitrogen and phosphorus from potting media containing biosolids compost as affected by organic and clay amendments.  Bull. Environ. Contam. and Toxicol.   60:716-723.

Lang, H.J. and Elliott, G.C.  1997.  Enumeration and inoculation of nitrifying organisms in soilless potting media.  J. Amer. Soc. Hort. Sci. 122:709-714.

Elliott, G.C. 1996.  pH Management in container media.  Commun. Soil Sci Plant Analysis.  27:635-649.

Elliott, G.C., McAvoy, R.J. and Abbot, M.  1994.  Comparison of Spurway and saturated media extracts for soilless media.  Commun. Soil Sci. Plant Analysis 25:1255-1276.

Elliott, G.C.  1992.  Imbibition of water by rockwool-peat container media amended with hydrophilic gel or wetting agent. J. Amer. Soc. Hort. Sci. 117:757-761.

Elliott, G.C.  1992.  A pulsed subirrigation system for small plots.  HortScience 27:71-72.

Koide, R. and Elliott, G.C. 1989.  The efficiency of carbon utilization in mycorrhizal and non-mycorrhizal plants.  Functional Ecology 3:252-255.

Elliott, G.C.  1986.  Urea hydrolysis in potting media.  J. Amer. Soc. Hort. Sci. 111:862-866. 

Elliott, G.C., Lynch, J. and Lauchli, A.. 1984.  Influx and efflux of P in roots of intact maize plants.  Double-labeling with 32P and 33P.  Plant Physiol. 76:336-341.

Elliott, G. C. and Nelson, P. V.  1983.  Relationships among nitrogen accumulation, nitrogen assimilation and plant growth in chrysanthemums.  Physiol. Plant. 57: 250-259.


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  George C. Elliott
Associate Professor
University of Connecticut

1376 Storrs Rd., Unit 4067
Department of Plant Science
Storrs, Connecticut 0626

Telephone: (860) 486-1938
fax: (860) 486-0682
email: george.elliott@uconn.edu
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