Jonathan M Frantz
Application Technology Research Unit
Research Horticulturist
Phone: (419) 530-1531
Fax: (419) 530-1599
GREENHOUSE PRODUCTION RESEARCH GROUP
2801 W. BANCROFT ST., MAIL STOP 604 TOLEDO, OH, 43606
Omer, M.A., Locke, J.C., Frantz, J., Krause, C.R. 2008. The influence of phosphorus concentration on the development of Pythium root rot disease of seedling geranium. Phytopathology. 98(6):S116.
Brunings, A., Datnoff, L., Palmateer, A., Locke, J.C., Frantz, J., Krause, C.R. 2008. Leaf spot on Tigergrass caused by Exserohilum rostratum in Florida. Phytopathology. 98(6):S27.
Krause, C.R., Altland, J.E., Derksen, R.C., Frantz, J., Locke, J.C., Ranger, C.M., Reding, M.E., Zhu, H. 2007. Current projects of the Application Technology Research Unit. OFA Bulletin. No.904:24-25.
Omer, M.A., Locke, J.C., Frantz, J. 2007. Using Leaf Temperature as a Non-destructive Precedure to Detect Pythium Root Rot Stress in Geranium. Horticulture Technology. 17(3):532-536.
Derksen, R.C., Frantz, J., Ranger, C.M., Locke, J.C., Zhu, H., Krause, C.R. 2007. The effect of spray volume and quality on handgun delivery of pesticides to greenhouse plants. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). Paper No. 071149.
Taylor, M., Nelson, P., Frantz, J. 2007. Effect of High Temperature on Extreme Substrate Acidification by Geranium. Southern Nursery Association Proceedings, Atlanta, GA, August 9-11, 2007.
Takahashi, N., Ling, P., Frantz, J. 2007. Considerations for Accurate Whole Plant Photosynthesis Measurement. Environmental Control in Biology. 46:71-81.
Takahashi, N., Ling, P., Klingman, M., Frantz, J. 2007. System Approach for Improved Whole Canopy Photosynthesis Measurement. Meeting Proceedings. Japanese Society of Agricultural, Biological, and Environmental Engineers and Scientists 2007 Conference, June 25-27, Sakai, Osaka, Japan.
Frantz, J., Runkle, E., Blanchard, M., Locke, J.C., Krause, C.R. 2007. Virtual Grower: Estimating Greenhouse Energy Costs and Plant Growth Using New Computer Software. HortScience Annual Meeting, July 16-19, 2007 in Scottsdale, AZ. 42:1018.
Taylor, M., Nelson, P., Frantz, J. 2007. Impact of flower removal and light and temperature stresses on acidification of nutrient solution by geranium (pelargonium x hortorum bailey). HortScience. Scottsdale, AZ, July 16-19, 2007.
Krug, B., Whipker, B., Frantz, J., Mccall, I. 2007. Bedding Plant Plugs suffering from ¿Stubby Plant Syndrome¿. HortScience. American Society for Horticultural Science, Scottsdale, AZ, July 16-20, 2007.
Taylor, M., Nelson, P., Frantz, J. 2007. Impact of low iron and phosphorus stresses on acidification of nutrient solution by geranium (pelargonium x hortorum bailey). HortScience. Scottsdale, AZ, July 16-19, 2007.
Taylor, M., Nelson, P., Frantz, J. 2007. Effect of High Temperature on Extreme Substrate Acidification by Geranium (Pelargonium x hortorum Bailey). American Society for Horticultural Science, July 16-19, 2007, Scottsdale, AZ. 42:874.
Taylor, M., Nelson, P., Frantz, J., Rufty, T. 2007. Effect of Phosphorus Deficiency and High Temperature on Ammonium and Nitrate Uptake by Geranium (Pelargonium x hortorum Bailey). HortScience Annual Meeting July 16-19, 2007, Scottsdale, AS. 42:890.
Frantz, J., Cometti, N.N., Iersel, M.V., Bugbee, B. 2007. Rethinking acclimation of growth and maintenance respiration of tomato in elevated CO2: effects of a sudden change in light at different temperatures. Journal Of Plant Ecology. 31:695-710.
Frantz, J., Pasian, C. 2007. Controlled Release Fertilizers: An Environmentally Sound and Efficient Method for Greenhouse Crop Fertilization. Ohio State University Extension Publication. 3:1. p. 5-7.
Pitchey, D., Frantz, J., Locke, J.C., Krause, C.R. 2007. How Does Geranium (Pelargonium) Respond To Specific Nutrient Deficiencies? A Visual Primer For Grower Diagnosis And Correction. Government Publication/Report. 894:1. p. 9-15.
Pitchay, D., Frantz, J., Locke, J.C., Krause, C.R., Fernandez, G. 2007. Impact of Applied Nitrogen Concentration on Growth of Elatior Begonia and New Guinea Impatiens, and Susceptibility of Begonia to Botrytis cinerea. Journal of the American Society for Horticultural Science. 132:193-201.
Chen, M., Yu, F., Frantz, J., Gray, J., Heckathorn, S. 2006. Protein profile changes of arabidopsis leaves in response to boron stress. American Society of Plant Biologists, Boston, MA. p. 159.
Yu, F., Pitchey, D., Frantz, J., Heckathorn, S., Gray, J. 2006. Boron Stress and Boron Tissue Distribution in Arbidopsis thaliana and Pelargonium X Hortorum. American Society for Plant Biology, Boston, MA. p. 159.
Deng, Y., Yu, F., Chen Mei, Pitchay, D., Frantz, J., Heckathorn, S., Gray, J. 2006. Biomonitoring of Boron Micronutrient Stress in Arbidopsis thaliana and Pelargonium X Hortorum. Midwest American Society of Plant Biologists, Chicago, IL, Maarch 24-25, 2006. Abstract #38.
Omer, M.A., Frantz, J., Locke, J.C., Krause, C.R. 2006. Use of leaf temperature to assess the response of geranium plants following exposure to soil pathogens. Phytopathology. 96:S87.
Frantz, J., Pitchay, D., Tay, D., Ehrenberger, J., Gray, J., Heckathorn, S., Leisner, S. 2006. Range of nutrients in pelargonium x hortorum and pelargonium spp. American Society of Horticulture Science Meeting. New Orleans, LA July 27-30, 2006.
Frantz, J., Locke, J.C., Krause, C.R. 2006. The new computer program virtual grower will help in greenhouse management. Ohio Floriculture Online
Volume 13; Issue 1. Available: http://floriculture.osu.edu/archive/feb06/Virtual%20Grower.html
Frantz, J. 2007. A new computer program will help in greenhouse management. Ohio State University Extension Publication. 12:1. floriculture.osu.edu/archive/feb06/index.html.
Frantz, J., Pitchay, D., Locke, J.C., Krause, C.R. 2005. Actual performance versus theoretical advantages of polyacrylamide hydrogel throughout bedding plant production. Hortscience. 40:2040-2046.
Frantz, J., Bugbee, B. 2005. Acclimation to shade: photosynthesis, respiration, canopy quantum yield, and carbon use efficiency. Journal of the American Society for Horticultural Science. 130:918-927.
Frantz, J., Pitchay, D., Ritchie, G., Zhu, H. 2005. Identifying common reflectance properties in diverse ornamental species to non-destructively determine nitrogen statues. Hortscience. 40(4):1060.
Pitchay, D., Frantz, J., Locke, J.C. 2005. Geranium nutrient deficiency symptoms, partitioning, and bioenergetic costs of construction. American Society of Horticultural Sciences [abstract]. 40(4):1060.
Frantz, J., Cometti, N.N., Bugbee, B. 2004. Night temperature has a minimal effect on respiration and growth in rapidly growing plants. Annals Of Botany. 94:155-166.
Locke, J.C., Pitchay, D., Frantz, J. 2004. Effect of nitrogen, potassium and silicon on disease susceptibility of various herbaceous ornamental corp species. Phytopathology. 94:S62.
Frantz, J., Pinnock, D., Klassen, S., Bugbee, B. 2004. Characterizing the environment response of a gibberellic acid deficient rice for use as a model crop. Agronomy Journal. 96:1172-1181.
Pitchay, D., Frantz, J., Locke, J.C., Krause, C.R. 2004. Managing nitrogen, potassium, and boron in new guinea impatiens: is more better?. Hortscience. 39(4):777.
Frantz, J., Ritchie, G., Cometti, G., Robinson, J., Bugbee, B. 2004. Exploring the limits of crop productivity: beyond the limits of tipburn in lettuce. Journal of the American Society for Horticultural Science. 129(3):331-338.