Skip to main content
ARS Home » Midwest Area » Wooster, Ohio » Application Technology Research » Docs » New GPRG Layout » Greenhouse Production Research Group

Greenhouse Production Research Group

/ARSUserFiles/50820500/GPRG/Pictures/website banner.jpg

Mission: To conduct fundamental and applied research on production technologies, environmental conditions, pests and diseases, and abiotic stresses for controlled environment agriculture (greenhouses and indoor farms) while safeguarding the environment, plant quality, and worker safety. To transfer that technology to the industry through partnerships with state extension services and direct stakeholder interactions.

/ARSUserFiles/50820500/GPRG/Pictures/WO.jpg

Wolfe Hall at the University of Toledo

Scientists
Dr. James Altland, Research Leader and Research Horticulturist (Wooster)
james.altland@usda.gov
Office (330) 263-3870 

Dr. Jennifer Boldt, Research Horticulturist (Toledo)
jennifer.boldt@usda.gov
Office (419) 530-2225      Cell (330) 439-8776      

Dr. Kale Harbick, Research Agricultural Engineer (Toledo)
kale.harbick@usda.gov
Cell (541) 505-1980

Dr. Shin-Yi Lee Marzano
, Research Molecular Biologist (Toledo)
shinyi.marzano@usda.gov
Office (419) 530-5053

 

Recent Publications

Elevated Carbon Dioxide and Chronic Warming Together Decrease Nitrogen Uptake Rate, Net Translocation, and Assimilation in Tomato (2021) PDF

Petunia (Petunia xhybrida) Cultivars Vary in Silicon Accumulation and Distribution. (2021) PDF

Lower Temperature Influences Cauliflower mosaic virus Systemic Infection (2021) PDF

Silicon modulates expression of pathogen defense-related genes during alleviation of copper toxicity in Nicotiana tabacum. (2021) PDF

Cauliflower mosaic virus P6 inclusion body formation: A dynamic and intricate process. (2021) PDF

 

Elevated carbon dioxide and chronic warming together reduce the nutritional quality of wheat. (2020) PDF

Salt tolerance of hydrangea plants varied among species and cultivar within a species. (2020) PDF

Storage procedures affect pH, electrical conductivity, and nutrient concentrations of pour-through leachate from pine bark and peat-based substrates. (2020) PDF

Effect of drought and carbon dioxide on nutrient uptake and levels of nutrient‐uptake proteins in roots of barley. (2020) PDF

Effects of electrical conductivity, pH, and foliar application of calcium chloride on yield and tipburn of Lactuca sativa grown using the nutrient–film technique. (2020) PDF

Dolomite and micronutrient fertilizer affect phosphorus fate when growing crape myrtle in pine bark. (2020) PDF

Photosynthesis, growth, and water use of Hydrangea paniculata ‘Silver Dollar’ using a physiological-based or a substrate physical properties-based irrigation schedule and a biochar substrate amendment. (2020) PDF

Optimizing substrate available water and coir amendment rate in pine bark substrates. (2020) PDF

Blue radiation interacts with green radiation to influence growth and predominantly controls quality attributes of lettuce. (2020) PDF

 

Physical and hydraulic properties of commercial pine-bark substrate products used in production of containerized crops. (2019) PDF

Lime rate affects substrate pH and container-grown birch trees. (2019) PDF

Research priorities of the environmental horticultural industry founded through consensus. (2019) PDF

Dolomite and micronutrient fertilizer affect phosphorus fate in pine bark substrate used for containerized nursery crop production. (2019) PDF

Efficacy of preemergence herbicides over time. (2019) PDF

Silicon alleviates long-term copper toxicity and influences gene expression in Nicotiana tabacum. (2019) PDF

Timing of a short-term reduction in temperature and irradiance affects growth and development of four annual bedding plants. (2019) PDF

Comparison of supplemental lighting provided by high-pressure sodium lamps or light-emitting diodes for the propagation and finishing of bedding plants in a commercial greenhouse. (2019) PDF

 

Contact Us
The Greenhouse Production Research Group is located at the University of Toledo.
Physical location: 4271A Wolfe Hall
Tel: 419-530-2225
Fax: 419-530-1599
2801 W Bancroft Street MS 604
Toledo, OH 43606