Brief Summary of Minutes of Annual Meeting

NE-1035 2013 meeting minutes September 20, 9-11 AM EST Conference call (in lieu of a regular get-together meeting) Members participating: A.J. Both (NJ), Stephanie Burnett (ME), Rich Gates (IL), Martin Gent (CT-New Haven), Joyce Latimer (VA), Peter Ling (OH), Neil Mattson (NY), Rich McAvoy (CT-Storrs), George Meyer (NE), Ellen Paparozzi (NE) 1 - Update on project/proposal from this year Our new five-year proposal has been approved, now designated as NE-1335 and titled Resource Management in Commercial Greenhouse Production. The current proposal represents a nice team effort including greenhouse engineers, plant production and physiologist, and an economist. The primary objectives of the new proposal are: 1) To develop up-to-date water and nutrient as well as energy management guidelines for greenhouse crop production; and provide stakeholders with educational opportunities that teach proper implementation at their own facilities; 2) To develop these guidelines using research and development involving sensors and control strategies devised by current team members, and through any future collaborations among team members who may become part of this research project. 2 - Discuss existing collaborations and potential for new collaborations Each member discussed current projects that they have underway, noting which projects they are collaborating with station members on and brainstorming potential future ideas. We discussed trying to add members from other universities to our group, including: Purdue University, University of New Hampshire, University of Florida, and the University of Georgia. After contacting individuals by email, they were not able to commit to joining our group but we have placed them on our mailing list so they can stay informed of our groups activities. 3 - Rich Gates mentioned that he has a fan performance testing set-up that could be used by others independently or as a collaboration when interested in evaluating energy efficiency and sustainability issues. 4 - Election of new officers Neil Mattson (Cornell University) was appointed as the new chair. A new secretary was not identified at the call, but through subsequent emails A.J. Both (Rutgers University) was appointed as the new secretary. 5 - Location of meeting for next year Two locations were considered: 1) University of Arizona  if it could be planned for winter/spring; 2) Rutgers University in June. There was some consensus that while Arizona would be great to visit in the winter time it could be difficult to plan logistically around members teaching schedules. We decided to proceed with New Jersey hosting the next meeting in June 2014 with details forthcoming. Respectfully submitted, Neil Mattson, Cornell University

OBJECTIVES: Topic 1: Energy conservation and alternative energy sources 1. Evaluate biomass derived fuels for greenhouse heating (NE, NJ, NY). [NE] A Nebraska cooperator greenhouse was heated using biomass fuels for heating instead of propane. Several different fuels were tested, individually and blended; including whole shelled corn, dry distiller’s grains pelletized, wood pellets and blends between each biomass, with the primary focus on whole shelled corn. Bomb calorimeter tests were performed on biomass fuels and their respective ashes. Several furnace and heat exchanger efficiency tests were performed, with cost effectiveness analysis for each fuel type. Emissions data was also collected for each fuel on carbon monoxide, carbon dioxide, nitrous oxides, sulfuric oxides, and particulate matter. The project used a biomass furnace donated to a greenhouse at Firth, Nebraska and an existing propane furnace. Although the biomass furnace generally had a lower efficiency than the 81 percent advertised for the propane furnace, the biomass fuels were more cost effective than propane. The biomass efficiencies typically ranged between 50 and 80 percent. Over a four year period (2008-2011) the cost savings of biomass fuels ranged between 30 and 60 percent and totaled a little over $15,000. Overall, biomass furnaces show great potential to be utilized in Nebraska greenhouses. 2. Develop decision support systems for alternative fuel heating systems (NJ, NE, NY, PA, CT). [NJ] Research was conducted to investigate the most economical strategy to use the output of a 250 kW microturbine system located at the NJ EcoComplex Research and Demonstration Greenhouse, near Columbus, NJ. The generated electricity and waste heat can be used in the greenhouse (in particular to operate the supplemental lighting system), exported in to the local electricity grid, or some combination of the two. A former Ph.D. student (Ariel Martin, 2013) developed a decision support system that helps the system operator to optimize the economic return, while ensuring that the greenhouse crops will be ready for processing on their intended harvesting/shipping dates. [NY] Coordinated control of daily light integral and CO2 concentration: During previous work at Cornell, a patented control algorithm was developed that demonstrates synergistic environmental control involving supplemental lights, moveable shades and CO2 supplementation. Outdoor air temperature and the expected solar integral for the next hour are predicted based on data collected in the previous several hours. An energy balance predicts the ventilation rate required to control temperature for the next hour. A growth model utilizing CO2 concentration and daily light integral is then utilized to develop costs associated with providing a consistent level of growth with varying levels of CO2 and supplemental light. For each combination the cost of supplemental CO2 is compared to savings of supplemental light and the least cost combination is chosen. This control algorithm was implemented in a greenhouse compartment at Cornell, and lettuce crops were grown under these conditions; CO2 use and lighting energy data were collected for 3 months. Over the course of the experiment the CO2 Light controller successfully produced consistent daily growth that used 37% less supplemental lighting than a light integral controller alone. The greenhouse used for this research was particularly dark (approximately 50% light transmission); we expect the percentage savings to be greater in a more typical commercial greenhouse. [NY] Energy comparisons of several imported vs. locally-grown foods: The impending probable shortage of liquid fuels has alerted policy makers and the public that we need to account for the energy needs of agricultural production and the energy costs of bringing food to our tables. It is for these reasons that energy budgets and types of energy used in food production are of great interest. In the following, the energy use being compared is only that part supplied by humans at a cost. The energy accounted for is that delivered as electricity and various fossil fuels used for crop production (called direct energy), and that required to manufacture building materials, tillage equipment, and supplies such as fertilizer and pesticides (called embodied energy). The energy to extract fossil fuels and generate electricity is also taken into account; it can be considered to be embodied energy. It requires money to acquire and manipulate the energy we are accounting for, and its use results in carbon dioxide and other greenhouse gas emissions. Topic 2: Water and nutrient solution management 3. Develop protocols for irrigation that maximize water use efficiency while maintaining crop growth and quality (CT, ME, NE, PA, NY, OH, AZ). [CT-NH] Sub-irrigation for production of potted ornamental plants combats the waste of water and fertilizer in traditional overhead watering systems used in greenhouses. We examined a system to rapidly deliver and remove water. We examined several parameters that vary between this partial saturation ebb and flow watering on a flooded floor compared to full saturation watering. Geranium and Poinsettia plants took up 20 to 30% less water and fertilizer. Biomass until flower development and bloom, and stem height, were also reduced by 10 to 20% under partial saturation. In one experiment with Poinsettia, inoculation of some plants with Pythium resulted in wilting of 20 of 240 non-inoculated plants grown under full saturation. No plants were affected under partial saturation. [CT-Storrs] Through a collaboration between CAES and Geremia Farms, a commercial greenhouse business, research was conducted to determine the effects of partial saturation sub-irrigation management on greenhouse crop growth and disease transmission in recycled water systems, and the interaction of irrigation management and salinity on crop growth and disease. Results of these efforts are being used to develop recommendations for greenhouse irrigation management and have been presented in publication and at grower conferences. [ME] In Maine and throughout the Northeastern United States, high quality and quantity water is limited for greenhouse production. One goal of our research has been to determine how much water is needed for a diverse amount of crops and what environmental factors drive water use in greenhouses. This research was conducted utilized a moisture sensor automated irrigation system that irrigates plants at user-determined soil moisture set points. Water requirements for the perennials alumroot, Canadian columbine, cheddar pink, English lavender, gaura, and rosemary were determined during the course of this project to provide new irrigation guidelines for those plants for greenhouse growers. Plants may be grown in a moisture sensor automated irrigation irrigation system using small quantities of water. For example, daily water use of American alum root was no more than 100 mL per plant; for petunia it was 12 to 44 mL per plant. According to plant water use models, light is the best environmental predictor to measure in order to determine when to water on a day-to-day basis. Using recommendations for water use for perennials, combined with water use models will allow growers to save water during production. This information was shared with greenhouse growers at regional and national grower meetings and in publications in trade journal articles. The results have also been published in six refereed journal articles, and we expect to publish two additional articles in 2014. [NE] We investigated and compared a commercial strawberry production system with a scientifically monitored and on-going prototype production system located on the East Campus at UNL. For our experiments, the five best previously selected cultivars were grown at both locations using automatic water-saving capillary mats and improved fertilization techniques. Heat was provided to the Cap Mats™ through polyethylene perforated tubes located under the benches. Reflective polyethylene as a mulch covered the wet mats to minimize evaporation, increase light, and to provide a clean surface for the berries. The mulch had holes to tightly fit the bottom of the pot. The roots were allowed to grow through the bottom of the pot into the mat to establish the capillary action. Dormant strawberry crowns were received in early September and were planted in a commercially available soilless mix for both sites. Flag strawberry pots were instrumented with a new commercial media temperature, capacitance water content, and electrical conductivity (EC) sensor. Media EC and pH is a major concern, so special sensors including pH were tested. All materials, supplies and setup costs for each production system were recorded and analyzed to calculate the number years for return on investment and profitability. It was discovered that deflowering the strawberries through October successfully delayed production until the end of November, but then decreased yield at a desired marketing time. Therefore, different production timelines were investigated to manipulate strawberry production in order to push plants to peak production when the price is highest (November-December). The 'control' production timeline was employed by the commercial grower partner. That timeline is: plant around mid-September – remove runners when able but do not deflower. An example of an adjusted production timeline is to continue to deflower one more week into October - remove runners at different intervals. The commercial grower partner has been successfully selling his harvested berries. [NY] Greenhouse production uses intensive amounts of water and fertilizer. Conventional overhead watering allows excess water, fertilizers, and pesticides to leach to surface and ground waters. In closed irrigation systems, excess water is captured and reused; however fertilizer protocols must be adjusted in closed systems so that high salt levels do not build up. Based on two years of experiments growing bedding plants at fertilizer concentrations ranging from 50-500 ppm N and via sub- versus overhead irrigation, we have developed guidelines for liquid fertilizer application rates for >20 bedding plants in response to irrigation method. In many cases fertilizer concentration can be reduced by 25 to 50% when sub-irrigation is used. [NY] While closed irrigation systems limit water pollution, most New York State greenhouse producers have not adopted these systems, in part, due to expensive costs of installation. Controlled release fertilizers (CRF) may represent a tool to reduce nutrient leaching in open irrigation systems. We compared growth of bedding plants, poinsettias, and garden mums in response to different rates of CRF and conventional liquid fertilizers (LF). We found that CRF adoption at the label medium to high rate led to plant growth equal to conventional LF in all but the most vigorous plants. CRFs applied at the medium to high rate led to a reduction in nitrogen and phosphorus runoff by five- to ten-fold compared with LF. 4. Develop irrigation protocols and filtration or sterilization methods for nutrient solution recirculation that minimize the effects of pathogens or toxic metabolites (CT, NY, OH). [CT-NH] We examined the composition of a nutrient solution as it was periodically recycled to a greenhouse tomato crop (Solanum lycopersicon L.), in comparison to solutions that were used to water plants only once. Crops were grown in spring and summer in a greenhouse using rock-wool as the root medium. The transition from vegetative to fruit growth, and from cool to warm weather, resulted in a decreased demand for nitrate, and other nutrients, and an increase in electric conductivity of water drained from the root zone. These changes were greater for recycle than discharge systems, and the recycle treatment took longer to return to an optimal composition. There were no consistent effects on yield, and little difference in composition of fruit or vegetative tissue, despite the large but temporary variation in composition of the nutrient solution due to recycling. [NY] Greenhouse water recirculation can lead to high salts accumulation. We have addressed short term needs by developing salt management guidelines (i.e. threshold levels) for several common floriculture species. Results of this effort were published as a two article series in Greenhouse Grower Magazine and in HortTechnology. We are also using molecular techniques to learn more about processes that plants use to mitigate salt toxicity. Using petunia as a model floriculture species we are conducting high throughput RNA sequencing to determine transcriptome level responses to NaCl. This research will identify candidate genes/markers for selecting petunia varieties for tolerance to high salts. [NY] We examined several exogenous compounds to improve plant salt tolerance. A commercially available kelp extract (Stimplex) was found to improve the growth and flower number of some bedding plants in response to extreme salt stress. kelp extract improved photosynthesis of salt-stressed plants. Brassinosteroid (a naturally derived hormone-like material) enhanced the growth of petunia plants exposed to salt stress and improved growth of un-stressed plants such that they were much bigger than control plants. Further research should be undertaken to see if Brassinosteroid applications can yield larger, higher quality plants under standard greenhouse conditions. Silicon (Si) is not regarded as an essential plant nutrient, but may enhance plant abiotic stress tolerance. Floriculture producers want to know if it’s economically beneficial to add Si. We have conducted experiments to determine which floriculture species accumulate Si and if there are benefits for abiotic stress tolerance. The cost to supply potassium silicate as a weekly drench for ten weeks was about 1 cent per pot. About half of the species that we have studied show enhanced salt tolerance with Si supplementation. Interestingly this does not seem to depend on the degree to which the species accumulates Si. Silicon also improved the post-harvest performance and drought tolerance of potted Poinsettia plants and the heat stress tolerance of petunia. [NY] Pythium aphanadermatum zoospores reproduce more slowly as hydroponic solution temperature decreases. This is especially important with spinach production, for spinach is particularly sensitive to the disease. Experiments showed there was no significant difference between the final harvest fresh weights of the spinach plants grown with a root zone temperature of 15°C and those of plants grown with a root zone temperature of 20°C. Moreover, there was no significant difference between the leaf areas of plants grown under the two, suggesting that lowering the root temperature to 15°C may provide/allow for greater disease control or a longer spinach crop cycle without losing productivity or changing the appearance of the product. Chilling nutrient solution in a floating hydroponic system required relatively little energy due to the presence of insulating rafts between the solution and the greenhouse environment, used to hold the plants. Topic 3: Sensors and control systems 5. Improve volumetric water content sensor efficacy (ME, NY, OH). [ME] At the University of Maine, we have used two varieties of volumetric water content sensors (EC-5 and EC-TM, Decagon Devices, Pullman, WA). Both of these sensors measure ? reliably and would be appropriate for use in research or production settings. Our EC-5 sensors have begun to crack at the base after five years of use. Based on our experience and communications with other researchers, five years may be the expected life span of these sensors. EC-TM sensors have been installed in an outdoor setting in Orono, ME (USDA hardiness zone 5a) at the Lyle E. Littlefield Ornamental Trial Gardens with a datalogger (EM-50, Decagon Devices). Both the datalogger and sensors have survived two winters in the farthest north trial gardens on the east coast. 6. Improve sensor control of the greenhouse aerial environment (light, carbon dioxide, temperature, and moisture) (NJ, OH, NY, NE, AZ). [AZ] For every new growing substrate, there is a need to accurately measure moisture content in the root zone and develop proper irrigation strategies. AZ worked on physical characterization of a new substrate (foam glass, a highly porous substrate) for automated irrigation management using microtensiometers (MT) to trigger irrigation cycles. Research involved the physical characterization of foam glass with particle sizes of less than 1.25 cm and the development of a MT. The developed sensor showed promise for its accuracy and use in automated irrigation applications with the new substrate (Lopez et al., 2008). The analysis of the efficacy of the sensor to monitor moisture content was completed, but no further development was established beyond the laboratory. [AZ] Advances in the field of micro-precision, sensors, and hardware technology allow lower cost and continuous monitoring of dynamic plant responses as an indicator of crop status and needs. Thus, using plants as “sensors,” integrating crop response based climate monitoring and control strategies, along with web based decision making and grower support platforms, we can significantly improve resource use efficiency, production quality, and environmentally friendliness of crop production in controlled environment agriculture systems. AZ designed and developed a machine vision guided system for plant health and growth monitoring to autonomously monitor and extract color (red-green-blue, hue-saturation-luminance, and color brightness), texture (entropy, energy, contrast, and homogeneity), Normalized Difference Vegetative Index (NDVI) (as well as other similar indices from the color and NIR channels), thermal (plant and canopy temperature), plant morphology (top projected plant and canopy area), and temporal changes of plant canopy. The system was first used to detect lettuce tipburn and it was shown that with color, textural and temporal features it was possible to detect the occurrence one day prior to the visual detection (Story et al., 2010). Then the system capability was evaluated to determine a water stress locality over a lettuce canopy growing in a NFT system for early stress detection. The system was able to indicate the stress locality and occurrence before visual stress symptoms were detected (Story et al., 2013). [NJ] Sensors and a datalogger were installed in a greenhouse section of the EcoComplex greenhouse that is used for orchid production. Temperature, PAR, relative humidity, wind speed, and wind direction are recorded to better characterize the indoor environment. [NY] We developed and installed a beta version of a Daily Light Integral (DLI) controller. The controller has been implemented at both Cornell University (connected to an Argus environmental control system) and in a commercial greenhouse in Ontario, Canada. The controller implements the DLI control algorithm patented by Cornell. Operation of the DLI controller will be monitored and quantified for one year. Other sites are being investigated currently to provide a range of climate and solar conditions for beta tests. Topic 4: Environmental effects on plant composition 7. Develop greenhouse design and management protocols to maintain high nutrition values of vegetable crops grown under various environments (AZ, CT, NJ). [AZ] We evaluated UV-A, blue, green, red, and far-red light-emitting diodes (LEDs) and their effects of different supplemental light qualities on phytochemicals and growth of ‘Red Cross’ baby leaf lettuce (Lactuca sativa L.) grown at a high planting density under white fluorescent lamps. Anthocyanins concentration increased with supplemental UV-A and blue respectively, carotenoids concentration increased with supplemental blue, phenolics concentration increased with supplemental red while supplemental far red decreased anthocyanins, carotenoids and chlorophyll concentration, compared to those under in the white light control. Fresh weight, dry weight, stem length, leaf length and leaf width significantly increased with supplemental far red light compare to white light, presumably due to enhanced light interception by enlarged leaf area under supplemental far red light. Although the mechanisms of changes in phytochemicals under different supplemental light quality are not well known, the results demonstrated that supplemental light quality could be used to enhance nutritional value and growth of baby leaf lettuce grown under white light (Li and Kubota, 2009). [CT-NH] Bibb lettuce was grown in hydroponics in a greenhouse and sampled at 3-hour intervals throughout one day in August 2007 and another day in November 2008 to determine fresh weight, dry matter, and concentration of nitrate and sugars. The dry/fresh weight ratio during the daylight period was greater for small compared to large plants. The variation in concentration with time was much less for nitrate than for soluble sugars. Soluble sugars were similar for all plant sizes early in the day, but they increased far more for small compared to large plants in the long days of summer. Delaying harvest to later in the day would increase dry matter and sugar concentration, but it would have little effect on nitrate. [CT-NH] The nutritional value of locally-grown salad greens was compared these to values for the same crops produced in distant regions and sold in supermarkets. Locally grown produce had higher concentrations of sucrose and starch, and lower concentrations of free amino acids than produce shipped from distant regions. Sugars were increased in summer in lettuce, and in winter in spinach. The local produce likely retained more of the sugars found in plants immediately after harvest. The high amino acids in non-local produce may be an early sign of tissue breakdown due to prolonged storage. However, we found no instances in which mineral- or organic acid composition differed between local compared to distance production.. [CT-NH] Timely removal of nitrate from the nutrient solution in hydroponics may lower tissue nitrate. The time course of changes in composition of hydroponic lettuce tissues were examined over a 6 to 13 day interval of nitrogen depletion or resupply. Most changes in growth were delayed by 6 days or more after changing N supply, except root growth responded in 3 to 4 days. The total reduced nitrogen increased or decreased for 6 days after nitrogen was depleted or resupplied. Tissue nitrate changed more rapidly. Within 2 days after the start of depletion, all tissues of N-depleted plants had more sugars compared to N-sufficient plants. Effects of N-depletion on tissue concentrations were reversible within 6 days of the start of depletion. [CT-NH] The relationship between daily integrated irradiance and tissue composition was examined in hydroponic lettuce grown at various times of year under natural sunlight in a greenhouse. Daily integrated irradiance varied from 5 to 24 MJ.m-2.day-1. Tissue composition was measured for plants that varied in size from 4 to 300 g FW per plant at high irradiance, and 2 to 180 g FW per plant at low irradiance. Irradiance was normalized per unit leaf area by dividing by LAI when the LAI exceeds 1. Sugars increased rapidly with irradiance for small plants on a fresh weight basis. Nitrate decreased with irradiance. Malate increased with irradiance, and the trend was greater on a fresh weight basis. Large plants had more nitrate and malate, and the contents were more sensitive to irradiance in large compared to small plants. There appeared to be compensation between nitrate and malate within the plant. 8. Develop greenhouse design and management protocols to maximize production of beneficial compounds such as phytochemicals and biopharmaceuticals (NY, AZ, CT, MI, NJ). [AZ] We analyzed data on year-round production of tomato under varied EC to express total soluble solid concentration (TSS) and lycopene concentration in tomato fruit using linear models with selected environmental variables. Durinta’ tomato were grown hydroponically using rockwool substrate in greenhouses to assess the seasonal and postharvest changes of selected quality attributes including lycopene and total soluble solids (TSS, % brix) concentrations in fruit when grown under varied electrical conductivity (EC) in the nutrient solution. Two levels of EC examined in this study were 2.4 and 4.8 dS•m-1 for standard low EC and high EC treatments. All fruits at light-red and red ripeness stages were harvested and weighed every week, and nine fruits visually representing the median group of red fruits were selected from each EC treatment and subject to measurements of lycopene and TSS concentrations. Out of 53 harvest weeks (December 2005 – December 2006), 45 weeks were subject to fruit quality analyses at harvest and three weeks were subject to postharvest quality analyses. Lycopene concentration and TSS showed seasonal differences with larger variation in lycopene, but the high EC treatment induced an overall average of 18% greater lycopene concentration and a 20% greater TSS. The regression analyses indicated that efflux solution EC (EEC) was the most influential factor for both lycopene and TSS concentrations, but secondary influential factors were greenhouse temperature for lycopene and daily light integral for TSS. Postharvest storage test showed that selected fruit quality attributes (lycopene, TSS, ascorbic acid and total phenolics) changed minimally or not at all for 10 days when stored at 12°C, a widely recommended tomato postharvest storage temperature. Overall, we consider that producing lycopene rich tomato by controlling EC of nutrient solution was feasible during year-round greenhouse production using a high-wire rockwool culture system. [MI] During this project, 37 replicated trials were completed to determine the effectiveness of fungicides and biopesticides against various water-mold pathogens in the greenhouse. Currently labeled products were tested so that growers could control the pathogens in the short-term, while experimental products were evaluated for long-term control options. In the hope to reduce the overall amount of conventional pesticides added to the environment, biopesticides were included in the experiments. If a particular biopesticide product showed efficacy, it was highlighted at the various commodity meetings. [MI] To assist growers in determining when to initiate their DM disease control program, a monitoring system has been in place to track the occurrence of cucurbit DM in Michigan yearly. Cucurbit downy mildew monitoring results have been uploaded to the ‘For Growers’ webpage (www.veggies.msu.edu) yearly. Webpage statistics show high use of this page during the growing season every year. DM and water molds research news and recommendations have been published by Michigan State University Extension News for Vegetables and for Floriculture (www.news.msue.msu.edu). [NY] Lighting effects on active metabolite production in St. John’s wort: Hypericum perforatum or St. John’s wort is a plant grown commercially for use as a medicinal plant. The consistency of secondary metabolites that act as active ingredients in H. perforatum preparations is a constant problem and is attributed partially to environmental conditions experienced by the plants during growth. Controlling the light provided to plants has been an effective way to manipulate plant growth in other crops. The effects of light intensity, quantity and quality on biomass and secondary metabolites hyperforin, pseudohypericin and hypericin over time were investigated in four experiments. Results showed a very small or no significant increase in the secondary metabolites quantified in response to increasing light intensity, light integral or the addition of UV-A or UV-B light. Biomass production was shown to increase with exposure to increased light intensity and light integral. It was demonstrated that all of the metabolites increased their concentrations as plants transitioned from a vegetative to reproductive state. Since metabolite concentrations were shown to rise so dramatically when plants were flowering, the best protocol for maximizing metabolite production per square meter of growing space is to furnish plants with as much total light as possible which would hasten the time to flowering, then harvest plant material at the full bloom stage. [NY] Environmental control to increase genetic expression of valuable chemicals in tobacco: Chloroplast-transformed tobacco cultivars expressing cellulase were used as a model crop to determine how to produce pharmaceuticals in controlled environments (CEs) most cost effectively. It was thought unlikely that cellulase enzymes would be a major target chemical for commercial CE production, but it was expected knowledge of the factors affecting the performance of chloroplast transformants expressing cellulase would generalize to transformants expressing other chemicals requiring or benefiting from greenhouse containment/production, that would be commercially viable. We have made good progress on the generation of transplastomic tobacco lines containing the gene for the high value human protein interleukin-2 (IL2) for CEA evaluation. Although protein expression in the chloroplast does not result in the production of properly glycosylated IL2, there is a market for non-glycosylated IL2. To date, there are no published reports of IL2 production in transplastomic plants. Topic 5: Natural ventilation design and control 9. Improve control strategies as an alternative to existing vent control systems (AZ, NJ). [AZ] We developed a control strategy for a naturally vented greenhouse equipped with high pressure fogging. The study hypothesized that since the cooling demands vary during the day and throughout the seasons, a strategy based on variable fog rates in addition to variable vent opening and ventilation rates can be more efficient in terms of water and energy use, while reducing the air temperature and humidity fluctuations in the greenhouse. Under the variable vent and fogging rate control strategy (VVFG), a control for the vent configurations based on enthalpies was developed with a specific enthalpy of the air, hset=56 kJ/kg, as the set point. Humid air at 24°C and VPD of 1.0 kPa falls on the same isenthalpic line. Percent vent opening configurations of ranged from 0-100% vent openings, with side and roof vents, and with 25% vent opening increments. Based on the computer simulations, and comparing the VVFG strategy to a common constant vent opening and fog rate strategy based on VPD control, it was shown that on average, the new strategy saved 36% water and consumed 30% less electric energy (Villarreal et al., 2012). 10. Continue our efforts to use CFD techniques to evaluate greenhouse natural ventilation systems (AZ, NY, OH, IL). [AZ] We developed and validated a 3D computational fluid dynamics model comparing simulation results with experimental data obtained from fog cooling research. The comprehensive CFD model included a turbulence model, solar radiation model, crop evapotranspiration model (with a user defined function), and a discrete phase change model. By incorporating the crop existence in the CFD models, not only was the greenhouse environment characterized more realistically, but also, the physics-based physiological processes of the plant (photosynthesis, transpiration) were also modeled (Tamimi et al., 2012). The overall model predicted temperature and relative humidity within the greenhouse with percentage errors for temperature and relative humidity of 5.7% to 9.4% and 12.2% to 26.9%, respectively (given a 95% confidence interval). The average percent error between the simulated and measured ET was around 8%, and the CFD-simulated stomatal and aerodynamic resistances agreed well and were within the ranges indicated by earlier research. Having validated the overall model with experimental data, we then used a 24 full-factorial design to determine the effects on climate uniformity produced by four factors: position of the side vent, position of the vertical sprayer nozzles, position of the horizontal sprayer nozzles, and angle of the nozzle. On the basis of our statistical analysis, we concluded that “horizontal nozzle position” was the most significant factor for climate uniformity, while the least significant factor among those evaluated was “side vent opening.” 11. Continue efforts to improve the efficiency and effectiveness of greenhouse fog cooling systems (AZ, IL, NJ, OH, NY). [AZ] We developed a new control strategy for a naturally vented greenhouse equipped with variable high pressure fogging system. The strategy controlled the amount of fog introduced into the greenhouse, as well as the percentage of vent openings to maintain desired values of vapor pressure deficit (VPD) and enthalpy, respectively, which would consequently affect air temperature. The performance was compared to constant fogging rate strategy, which was based on VPD. On average, the new strategy saved 36% water and consumed 30% less electric energy. Smaller air temperature and relative humidity fluctuations, and more consistent control, were achieved by varying the fog system operating pressure to provide a more optimum amount of fog. It was demonstrated by simulations that dynamically varying the fog rate and properly selecting the number of nozzles, savings of water and electric energy were increased, while still maintaining acceptable VPD and temperature (Villarreal-Guerrero et al., 2012a, 2012b, 2013). Other accomplishments not specifically related to the 2008-2013 NE-1035 Multistate Research Project objectives: [AZ] The Lunar Greenhouse–Outreach & Teaching Module (LGH-OTM) includes the Controlled Environment Agriculture Center, together with its partners Hungry Planets, Sadler Machine Company [Arizona], Aero-Sekur [Italy] and the Steckler and Space Grants programs of NASA, whose goal is to provide platforms presenting science, technology, education, food security and production, with educational demonstrations. The LGH-OTM, a portable version of the lab design LGH, will be exhibited around the US to demonstrate and provide outreach and training for audiences of all ages. The first display of the LGH-OTM at San Diego County Fair (SDCF), June 8, to July 5, 2012 entitled, "Out of this World," anticipates audiences of 1.5 million. Nearly 10,000 students in 400 lower, middle and high school classes are committed to attend the "Growing Out of this World food" exhibit area, where the LGH-OTM is spotlighted. The Lunar Greenhouse program is based on more than a decade of research at the UA-CEAC in collaboration with Sadler Machine Co, beginning with the South Pole Food Growth Chamber through Raytheon Polar Services Company and the National Science Foundation (NSF), and with continued sponsorship by NASA, NSF and various aerospace companies including Italy's Aero-Sekur and the Franco-Italian Thales Alenia Space. The LGH-OTM was further deployed to the Museum of Science and industry in Chicago, IL for the period July 2012 – January 2013. 760,000+ Museum visitors estimated by Museum management visited the LGH-OTM during exhibit period. At the Arizona Governor’s Economic Development Conference, Litchfield Park, September 2012, the UA-CEAC was the recipient of “Future Leaders” Award for its development and utilization for Outreach of the LGH-OTM. TheBiotechnology Industries Organization 2013 Expo, Chicago, IL in April 2013 found the LGH-OTM as the Centerpiece of Arizona State Pavilion with 2,500+ certified engaged attendees at booth and event attendance & circulation at 52,000 for 3.5 days. Two event Related Media Audiences were WMAQ-TV News [3 day parts for 2 minutes at 530,000 HUT/ 1.2+ Million Viewers]; and, the Medill News Service 2 minute video and 5400+ word story for 150,000+ users and Medill J-School Graduate List. The Arizona Governor’s Celebration of Innovation, Phoenix, IL in November 2013, found the UA-CEAC a finalist of the Annual Innovator of the Year – Academia. [NJ] We continue to work on educational modules in Controlled Environment Plant Protection (CEPP) can be used by students, greenhouse growers, industry representatives, and college administrators anywhere in the country. The business management modules will be largely based on curriculum that has been developed for Annie’s Project New Jersey. A workbook has been developed using a greenhouse as an example. The workbook describes each section of a business plan, gives a greenhouse example, and provided worksheets so that clientele can develop their plans. Short videos are being made of each section including mission statement, financial plan, cost accounting, financial analysis, overhead versus variable cost, cost accounting, how to determine the profitability and cash flows of the business. All of the women who have participated in Annie’s Project started a business plan and all have increased their knowledge of the risk factors affecting their businesses. Detailed information on Annie’s Project can be found on the Rutgers Farm Management Website at: http://aesop.rutgers.edu/~farmmgmt. With the greenhouse industry still faced with a somewhat weak economy, the Rutgers Cost Accounting Program is being used by more producers than ever before. It allows producers to track their costs carefully, analyze their financial position, review their historical performance, track their assets, review benchmarks and predict future performance, and predict cash inflows and outflows. An alternative fuel source for greenhouse growers is to produce their own energy. We have updated the costs of producing bio-energy crops and analyzed the economics of using switchgrass to heat greenhouses, sell wholesale, or sell retail.

Dissertations, Theses (Published)

Fitz-Rodriquez, E., 2008, Intelligent decision support system for greenhouse tomato production. Ph.D. Dissertation University of Arizona.

Justis, Ian. 2009. Development of a Short Term Storage Technique for Grafted Muskmelon Seedlings. M.S. Thesis University of Arizona.

Lewis, M. 2009. The Commercial Feasibility of Hydroponic Lettuce Production in the Desert Southwest. MPS thesis, University of Arizona.

Licamele, Jason. 2009. Biomass Production and Nutrient Dynamics in an Aquaponics System. Ph.D. Dissertation, University of Arizona.

Story, D. 2009. Plant Nutrient Deficiency Detection using Automated Morphology Based Sensing in Controlled Environments. M.S. Thesis, University of Arizona.

Chia, P. 2009. End-of-day far-red light quality and dose effects on elongation of tomato rootstock seedling hypocotyls. M.S. Thesis, University of Arizona.

Villarreal-Guerrero, F. 2011. Enhanced greenhouse cooling strategy with natural ventilation and variable fogging rates. Ph.D. Dissertation, University of Arizona.

Patterson, R.L. 2011. Description, Operation and Production of the South Pole Food Growth Chamber. M.S. Thesis, University of Arizona.

Tamimi, E. 2012. Predicting the internal environmental conditions of greenhouse equipped with high pressure fogging using CFD. M.S. Thesis, University of Arizona.

Spalholz, H. 2013. Development of short term storage techniques for grafted vegetable seedlings. M.S. Thesis, University of Arizona.

Juang, P. 2013. System Dynamics of a Photovoltaic Integrated Greenhouse. M.S. Thesis, University of Arizona.

Story, D. 2013. Autonomous Multi-Sensor and Web-Based Decision Support for Crop Diagnostics in Greenhouse. Ph.D. Dissertation, University of Arizona.

Hernandez, R. 2013. Growth and development of greenhouse vegetable seedlings under supplemental LED lighting. Ph.D. Dissertation, University of Arizona.

Cespedes-Sanchez, M.C. 2012. M.S. Thesis: Host susceptibility to two Peronosporales among cucurbits and beans. M.S. Thesis, Michigan State University.

Martin, A. 2013. Development of a decision support system to operate the greenhouse lighting and shading systems powered by a distributed generator. Ph.D. Dissertation, Rutgers University.

Brechner, M.L. 2008. Some effects of light quantity and quality on secondary metabolites hyperforin, pseudohypericin, and hypericin in Hypericum perforatum. Ph.D. Dissertation, Cornell University.

Shelford, T. 2010. The Risk of Pythium aphanidermatum in Hydroponic Baby-Leaf Spinach Production. Ph.D. Dissertation, Cornell University.

Villarino Pizarro, G.H. 2011. Salt tolerance in floriculture species: characterization of salt tolerance and the cloning of a novel Petunia gene involved in trehalose sugar biosynthesis and evaluating its roles as a stress osmolyte in mutant yeasts. M.S. Thesis, Cornell University.

Books (Published)

Vanek, F.M., L.D. Albright and L.T. Angenent. 2012. Energy Systems Engineering: Evaluation and Implementation. Second Edition. McGraw-Hill, New York. ISBN 978-0-07-178788-9.

Proceedings (Editors)

Kubota, C. and M. Kacira. (eds.) 2008. Proceedings of International Society of Horticultural Scientists (ISHS) International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions. October 20-24, Tucson, AZ, USA. ActaHorticulturae Vol. 797.

Book Chapters (Published)

Meyer, G.E. and Gary Deberg 2010 Flow Measurement. In D.R. Heldman (Editor) Encyclopedia of Agricultural, Food, and Biological Engineering, Marcel Dekker, Inc.

Meyer, G.E., 2011. Machine Vision Identification of Plants, in D. Krezhova (Ed.), Recent Trends for Enhancing the Diversity and Quality of Soybean Products (ISBN: 978-953-307-533-4), InTech, Rijeka, Croatia, pp 401-420.

Both, A.J. and D.R. Mears. 2008. Building and maintaining greenhouses for energy savings. In ‘Horticulture: Principles and Practices’, 4th ed. by G. Acquaah; included in Chapter 12 ‘Controlled-Environment Horticulture’. Prentice Hall, Inc. Upper Saddle River, NJ. pp. 406-417.

Both, A.J. 2011. Horticultural engineering. In ‘Encyclopedia of Life Support Systems’, Developed under the auspices of the UNESCO, Eolss Publishers, Oxford ,UK, [http://www.eolss.net].

Mattson, N. and N. Catlin. 2011. Carbon dioxide: building block for plant growth. in Ball Redbook Volume 1, 18th edition (Beytes, C., Ed.) Ball Publishing, West Chicago, IL. pp. 132-134.

Mattson, N.S. 2012. Plant mineral nutrition. In AccessScience, McGraw-Hill.

Refereed Journal Articles (Published)

Giacomelli, G.A., 2009. Engineering Principles Impacting High Tunnel Environments. HortTechnology 19(1):1-4.

Takakura, T, C. Kubota, S. Sase, M. Hayashi, M. Ishii, K. Takayama, H. Nishina, K. Kurata, G.A. Giacomelli, 2009. Measurement of evapotranspiration rate in a single-span greenhouse using the energy-balance equation, Biosystems Engineering, 102 (3): 298-304.

Kim, K., J.Y. Yoon, H.J. Kwon, J.H. Han, J.E. Son, S.W. Nam, G.A. Giacomelli and I. Lee, 2008. 3-D CFD Analysis of Relative Humidity Distribution in Greenhouse with Fog Cooling System and Refrigerative Dehumidifiers. Biosystems Engineering, 100: 245-255.

Buck, J.S., C. Kubota, and M. Jensen. 2008. Effect of mid-day reduction of high electrical conductivity treatment on the yield and quality of greenhouse cherry tomato. HortTechnology 18:460-466.

Kim, H.J., J.M. Fonseca, J.H. Choi, C. Kubota, and D.Y. Kwon. 2008. Salt in irrigation water affects the nutritional and visual properties of romaine lettuce (Lactuca sativa L.). J. Agric. Food Chem., 56:3772–3776.

Kubota, C., M.A. McClure, N. Kokalis-Burelle, M.G. Bausher, and E.N. Rosskopf. 2008. Vegetable Grafting: History, Use, and Current Technology Status in North America. HortScience. 43:1664-1669.

Thomson C.A., N.R. Stendell-Hollis, J.L. West, E.C. Cussler, L.M. McCune, M. Kroggel, H.J. Kim, and C. Kubota. 2008. High-lycopene consumption increases serum carotenoid levels but does not have decrease levels of oxidative stress and inflammation in healthy adults. The Open Bioactive Compounds Journal. 1:7-12.

Wu, M. and C. Kubota. 2008. Effects of electrical conductivity of hydroponic nutrient solution on leaf gas exchange of five greenhouse tomato cultivars HortTechnology 18:271-277.

Wu, M. and C. Kubota. 2008. Effects of high electrical conductivity of nutrient solution and its application timing on lycopene of hydroponic tomatoes during ripening Scientia Horticulturae 116:122-129

Fitz Rodriguez, E., G. A. Giacomelli, 2009. Yield Prediction And Growth Mode Characterization Of Greenhouse Tomatoes With Neural Networks And Fuzzy Logic. Trans ASABE Vol. 52(6): 2115-2128

Fitz-Rodriguez, E., C. Kubota, G.A. Giacomelli, M. Tignor, S.B. Wilson, M. McMahon, 2010. Dynamic modelling and simulation of greenhouse environments under several scenarios: A web-based application. Computers and Electronics in Agriculture 70(1):105-116.

Matsuda, R., C. Kubota, M. L. Alvarez and G. A. Cardineau. 2010. Determining the optimal timing of fruit harvest in transgenic tomato expressing F1-V, a candidate subunit vaccine against plague. HortScience. 45:347–351.

Linker, R., M. Kacira, A. Arbel. 2011. Robust climate control of a greenhouse equipped with variable-speed fans and a variable-pressure fogging system. Biosystems Engineering, 110(2): 153-167.

Sabeh, N.C. G. Giacomelli, C. Kubota. 2011. Water use in a greenhouse in a semi-arid climate. Trans. ASABE, 54(3): 1069-1077.

Striemer, G.M., D. L. Story, A. Akoglu and M. Kacira. 2011. A Node and Network Level Self-Recovering Distributed Wireless Sensor Architecture for Real-Time Crop Monitoring in Greenhouses. Transactions of ASABE, 54(4): 1521-1527.

Yang, Z. C, C. Kubota, P. L. Chia, M. Kacira. 2012. Effect of end-of-day far-red light from a movable LED fixture on squash rootstock hypocotyl elongation. Scientia Horticulturae, 136: 81-86.

Crane, T.C., C. Kubota, J. L. West, M.A. Kroggel, B.C. Wertheim, and C.A. Thomson. 2011. Increasing the vegetable intake dose is associated with a rise in plasma carotenoids without modifying oxidative stress or inflammation in overweight or obese postmenopausal women. Journal of Nutrition, 141: 1827-1833.

Sase, S., M. Kacira, T. Boulard, L. Okushima. 2012. Determination of porosity parameters for tomato canopy: An experimental study in a wind tunnel. Transactions of the ASABE. 55(5): 1921-1927.

Bartzanas, T., M. Kacira, H. Zhu, S. Karmakar, E. Tamimi, N. Katsoulas, I. Lee, C. Kittas. 2012. Computational fluid dynamics applications to improve crop production systems. Computers and Electronics in Agriculture, Vol. 93: 151-167

Boscheri, G., M. Kacira, L. Patterson, G. Giacomelli, P. Sadler, R. Furfaro, C. Lobascio, M. Lamantea, L. Grizzaffi. 2012. Modified energy cascade model adapted for a multicrop lunar greenhouse prototype. Advances in Space Research, 50: 941-951

Waller, P., R. Ryan, M. Kacira, P. Li. 2012. Algae raceway integrated design (ARID) for optimal temperature management. Journal of Biomass and Bioenergy. (In Press)

Crowe, B., S. Attalah, S. Agrawal, P. Waller, R. Ryan, J. Van Wagenen, A. Chavis, J. Kyndt, M. Kacira, K. L. Ogden, M. Huesemann. 2012. A comparison of Nannochloropsis salina growth performance in two outdoor pond designs: conventional raceways versus the ARID pond with superior temperature management. International Journal of Chemical Engineering, Vol. 2012, Article ID 920608, 9 pages. doi:10.1155/2012/920608

Villarreal-Guerrero, F., M. Kacira, E. Fitz-Rodríguez, R. Linker, C. Kubota, G.A. Giacomelli, A. Arbel. 2012. Simulated performance of a greenhouse cooling control strategy with natural ventilation and fog cooling. Biosystems Engineering, 111: 217-228.

Villarreal-Guerrero, F., M. Kacira, E. Fitz-Rodríguez, C. Kubota, G.A. Giacomelli, R. Linker, A. Arbel. 2012. Comparison of three evapotranspiration models for a greenhouse cooling strategy with natural ventilation and variable high pressure fogging. Scientia Horticulturae, 134: 210-221

Tamimi, E., M. Kacira, C. Choi, and L. An. 2013. Analysis of climate uniformity in a naturally ventilated greenhouse equipped with high pressure fogging system. Transactions of ASABE, Vol. 56(3): 1241-1254.

Villarreal-Guerrero, F., M. Kacira, E. Fitz-Rodríguez, R. Linker, G. A. Giacomelli, A. Arbel, C. Kubota. 2013. Implementation of a greenhouse cooling strategy with natural ventilation and variable fogging rates. Transactions of ASABE. Vol. 56(1): 295-304.

Gent, M.P.N. 2008. Density and Duration of Shade Affect Water and Nutrient Use in Greenhouse Tomato. J. Amer. Soc. Hort. Sci. 133:619-627.

Gent, M.P.N and R.J. McAvoy. 2011. Water and Nutrient Uptake and Use Efficiency with Partial Saturation Ebb and Flow Watering. HortScience 46:791-798.

Gent, M.P.N and I. Seginer. 2012. A Carbohydrate Supply and Demand Model of Vegetative Growth: Response to Temperature and Light. Plant Cell Environment 35:1274-1286.

Gent, M.P.N. 2012. Composition of hydroponic lettuce: Effect of time of day, plant size, and season. J. Sci. Food. Agric. 92:542-550.

Gent, M.P.N. 2012. Rate of change of composition of lettuce in response to nitrogen depletion or resupply. J. Sci. Food. Agric. 92:3007-3015

Elmer, W.H., M.P.N. Gent, R.J. McAvoy. 2012. Partial saturation under ebb and flow irrigation suppresses Pythium root rot of ornamentals. Crop Protection 33:29-33.

Gent, M.P.N. and M.R. Short. 2012. Effect on yield and quality of a simple system to recycle nutrient solution to greenhouse tomato. HortScience 47:1641-1645.

Rothrock, M.J., Jr., Frantz, J.M., S. Burnett. 2012. Effect of volumetric water content and clover (Trifolium incarnatum) on the survival of Escherichia coli O157:H7 in a soil matrix. Current Microbiology 65:272-283.

Paparozzi, E., N. Mattson, M. Grossman, S. Burnett and R. Lopez. 2013. Creative thinking, creative funding: research, extension and teaching programs and consortiums – the 2013 National Floriculture Forum. HortTechnology. 23(6):794-795.

Meyer, G.E., E.T. Paparozzi, E A. Walter-Shea, E.E. Blankenship, and S.A. Adams, 2012. An Investigation of Reflective Mulches for Use over Capillary Mat Systems for Winter-time Greenhouse Strawberry Production. Applied Engineering in Agriculture 28(2):271-279.

Paparozzi, E. T. 2013. The challenges of growing strawberries in the greenhouse. HortTechnology 23(6):800-802.

Lefsrud, M., D. Kopsell, C. Sams, J. Wills, and A.J. Both. 2008. Dry matter content and stability of carotenoids in kale and spinach during drying. HortScience 43(6):1731-1736.

Mears, D.R., A.J. Both, L. Okushima, S. Sase, M. Ishii, and H. Moriyama. 2009. Some alternatives to burning fuels for greenhouse heating (in Japanese). Journal of Agricultural Meteorology. 65(3):303-308.

Zinati, G.M., J. Dighton, and A.J. Both. 2011. Fertilizer, irrigation and natural ericaceous root and soil inoculum (NERS): Effects on container-grown ericaceous nursery crop biomass, tissue nutrient concentration, and leachate nutrient quality. HortScience 46(5):799-807.

Blanchard, M.G., E.S. Runkle, A.J. Both, and H. Shimizu. 2012. Greenhouse energy curtains influence shoot-tip temperature of new guinea impatiens. HortScience 47(4):483-488.

Mattson, N.S., Lieth, J.H., Kim, W.S. 2008. Temporal Dynamics of Nutrient and Carbohydrate Distribution during Crop Cycles of Rosa spp. ‘Kardinal’ in Response to Light Availability. Scientia Horticulturae. 118(3):246-254.

Massa, D., Mattson, N.S., Lieth, J.H. 2008. An empirical model to simulate sodium absorption and accumulation in a closed hydroponic system for rose culture. Scientia Horticulturae. 118(3):228-235.

Mattson, N.S., Lieth, J.H. 2008. ‘Kardinal’ rose exhibits growth plasticity and enhanced nutrition absorption kinetics following nitrate, phosphate, and potassium deprivation. Journal American Society Horticultural Science. 133(3):341-350.

Shelford, T.J. and L.D. Albright. 2008. Light management for controlled-environment agriculture. Photonics Spectra 42(3):49-54. Integrated Light and CO2 Control to Optimize Commercial Greenhouse Plant Growth and Energy Efficiency. Paper No. 084619. ASABE, St. Joseph, MI

Miller, C.T., N.S. Mattson, and W.B. Miller. 2009. Nitrate:Ammonium ratio affects growth and development of Oxalis regnellii in hydroponic culture. Israel Journal of Plant Sciences. 57(4):390-386.

Guo, W.D., Y.P. Guo, J.R. Liu, and N.S. Mattson. 2009. Midday depression of photosynthesis is related with carboxylation efficiency decrease and D1 degradation in bayberry (Myrica rubra) plants. Scientia Horticulturae. 123:188-196.

Bar-Yosef, B., N.S. Mattson, and J.H. Lieth. 2009. Effects of NH4:NO3:urea ratio on cut roses yield, leaf nutrients content and proton efflux by roots in closed hydroponic system. Scientia Horticulturae. 122:610-619.

Massa, D., N.S. Mattson, and J.H. Lieth. 2009. Effects of saline root environment (NaCl) on nitrate and potassium uptake kinetics for rose plants: a Michaelis-Menten modelling approach. Plant and Soil. 318:101-115.

Mattson, N.S. and W.R. Leatherwood. 2010. Potassium silicate drenches increase leaf silicon content and affect morphological traits of several floriculture crops grown in a peat-based substrate. HortScience. 45:43-47.

Miller, C.T., N.S. Mattson and W.B. Miller. 2011. Fertilizer composition, concentration and irrigation method affect growth and development of Oxalis regnellii and Oxalis triangularis. HortScience 46:1110-1115.

Shahid., M.A., M.A. Pervez, R.M. Balal, N.S. Mattson, A. Rashid, R. Ahmad, C.M. Ahhub and T. Abbas. 2011. Brassinosteroid (24-epibrassinosteroid) enhances growth and alleviates the deleterious effects effects induced by salt stress in pea (Pisum sativum L.). Australian Journal of Crop Science. 5:500-510.

Song, J.-Y., N.S. Mattson and B.Y. Jeong 2011. Efficiency of shoot regeneration from leaf, stem, petiole and petal explants of six cultivars of Chrysanthemum morifolium. Plant Cell, Tissue and Organ Culture. DOI 10.1007/s11240-011-9980-0.

Shahid, M.A., R.M. Balal, M.A. Pervez, T. Abbas, M. Ashfaz, U. Ghazanfar, M. Afzal, A. Rashid, F. Garcia-Sanchez, and N.S. Mattson. 2012. Differential response of pea (Pisum sativum L.) genotypes to salt stress in relation to the growth, physiological attributes, antioxidant activity and organic solutes. Australian Journal of Crop Science. 6:828-838.

Balal, R.M., M.M. Khan, M.A. Shahid, N.S. Mattson, T. Abbas, F. Garcia-Sanchez, U. Ghazanfer, and Z. Iqbal. 2012. Comparative studies on physio-biochemical, enzymatic and ionic modifications in salt tolerant and salt sensitive citrus rootstocks under NaCl stress. Journal American Society Horticultural Science 137:86-95.

Cerveny, C.B., W.B. Miller, T. Björkman, and N.S. Mattson. 2012. Soaking temperature of dried tuberous roots influences hydration kinetics and growth of Ranunculus asiaticus (L.). HortScience 47:212-216.

Liu, J., W.R. Leatherwood and N.S. Mattson. 2012. Irrigation method and fertilizer concentration differentially alter growth of vegetable transplants. HortTechnology 22:56-63.

Mattson, N.S. and M.W. van Iersel. 2011. Application of the ‘‘4R’’ nutrient stewardship concept to horticultural crops: applying nutrients at the ‘‘right time’’. HortTechnology 21:667-673.

Villarino, G. and N.S. Mattson. 2011. Assessing tolerance to sodium chloride salinity in fourteen floriculture species. HortTechnology 21:539-545.

Li, Y., J. Qin, N.S. Mattson, and Y. Ao. 2013. Effect of potassium application on celery growth and cation uptake under different calcium and magnesium levels in substrate culture. Scientia Horticulturae. 158:33-38.

Mattson, N.S., E.M. Lamb, B. Eshenaur and J. Sanderson. 2013. IPM In-Depth: A New York model for hands-on interactive greenhouse workshops. HortTechnology. 23(6):796-799.

Miller, W.B., N.S. Mattson, X. Xie, D. Xu, C.J. Currey, K.L. Clemens, R.G. Lopez, M. Olrich, and E.S. Runkle. 2012. Ethephon substrate drenches inhibit stem extension of floriculture crops. Hortscience. 47: 1312-1319.Gent, M.P.N and R.J. McAvoy.2011. Water and nutrient uptake and use efficiency with partial saturation ebb and flow watering. HortScience 46:791-798.

Symposium Proceedings Articles (Papers Published)

Kacira, M., S. Sase, A. Ikeguchi, M. Ishii, G. Giacomelli, N. Sabeh. 2008. Effect of Vent Configuration and Wind Speed on Three-Dimensional Temperature Distributions in a Naturally Ventilated Multi-Span Greenhouse by Wind Tunnel Experiments. Acta Horticulturae, 801: 393-400.

Chen-Lopez, J.C., P. Waller, G.A. Giacomelli and M.Tuller, 2008. Physical Characteristics of Greenhouse Substrates for Automated Irrigation Management. Acta Horticulturae, 797:333-338.

Patterson, R.L., G.A. Giacomelli and P.D. Sadler. 2008. Resource and Production Model for the South Pole Food Growth Chamber. SAE International Paper No. 08ICES-0187, Proceedings ICES Conference, San Francisco, CA

Sadler, P., R. Furfaro, G. Giacomelli and L. Patterson. 2008. Prototype BLSS Lunar Habitat. SAE International Paper No. 08ICES-0094, Proceedings ICES Conference, San Francisco, CA.

Giacomelli, G. 2008. Controlled Environment Opportunities...Its not just tomatoes but a technology platform that will enhance the quality of life. Proceedings of the 34th Agricultural Plastics Congress, American Society for Plasticulture. Invited speaker.

Kubota, C. 2008. Use of grafted seedlings for vegetable production in North America. Acta Horticulturae 770:21-28.

Lovichit, W., C. Kubota, C. Choi, and G.G. Schoonderbeek. 2008. Feasibility study for water recovery system for pad-and-fan cooled greenhouse in semiarid climate. Acta Horticulturae 797:315-320.

Matsuda, R., C. Kubota, L.M. Alvarez, and G.A. Cardineau. 2008. Growth, development, and protein productivity of transgenic tomato plants expressing a Yersinia pestis antigen fusion protein F1-V in a greenhouse. Acta Horticulturae 797:381-385.

Sadler, P., G. Giacomelli, R. Furfaro, M. Kacira, and R.L. Patterson. 2009. Prototype BLSS Lunar Greenhouse. SAE International Paper No. 09ICES-0250

Story, D., M. Kacira, C. Kubota and A. Akoglu. 2011. Morphological and textural plant feature detection using machine vision for intelligent plant health, growth and quality monitoring. Acta Horticulturae, 893: 299-306.

Rodríguez, E. F., M. Kacira, F. V. Guerrero, C. Kubota, G. Giacomelli, R. Linker, A. Arbel. 2010. Dynamic Response and Environmental Uniformity of a Naturally Ventilated Greenhouse Cooled with a Variable-Pressure Fogging System. ASABE Paper Number: 1009436, St. Joseph, Michigan.

Guerrero, F. V., M. Kacira, E.F. Rodriguez., R. Linker, A. Arbel, C. Kubota, G. Giacomelli. 2010. Developing a Control Strategy for Greenhouses Equipped with Natural Ventilation and Variable Pressure Fogging: Evapotranspiration Models and Simulated Comparison of Fixed and Variable Pressure Fog Cooling. ASABE Paper Number: 1009388, St. Joseph, Michigan.

Striemer, G.M., D. Story, A. Akoglu, M. Kacira. 2010. A Node and Network Level Self-Healing Distributed Wireless Sensor Architecture for Greenhouse Based Plant Monitoring Systems. ASABE Paper Number: 1009468, St. Joseph, Michigan.

Kacira, M., S. Sase, A. Ikeguchi, M. Ishii, G. Giacomelli, N. Sabeh. 2008. Effect of Vent Configuration and Wind Speed on Three-Dimensional Temperature Distributions in a Naturally Ventilated Multi-Span Greenhouse by Wind Tunnel Experiments. Acta Horticulturae, 801: 393-400.

Sadler, P., G. Giacomelli, , L. Patterson, M. Kacira, R. Furfaro, C. Lobascio, G. Boscheri, M. Lamantea, L. Grizzaffi, S. Rossignoli, M. Prirolli, and S. DePascale. 2011. Bio-regenerative life support systems for space surface applications. Proc. of 41th Int. Conf. on Environmental Systems: Towards Permanent Lunar Habitation: The Journey Continues. Paper No: AIAA-2011-5133.

Villarreal-Guerrero, F., M. Kacira, E. Fitz-Rodriguez, G. Giacomelli, C. Kubota, R. Linker, and A. Arbel . 2012. Simulation of fixed and variable pressure fogging in naturally ventilated greenhouse, water and energy savings and stability of climate. Acta Horticulturae, 952: 37-44.

Fitz-Rodr?guez, E., M. Kacira, F. Villarreal-Guerrero, G.A. Giacomelli, R. Linker, C. Kubota, A. Arbel. 2012. Neural network predictive control in a naturally ventilated and fog cooled greenhouse. Acta Horticulturae,952: 45-52.

Patterson, R. L., G.A. Giacomelli, M. Kacira, P.D. Sadler, R.M. Wheeler, , and. 2012. Description, operation and production of the South Pole food growth chamber. Acta Horticulturae, 952:589-596.

Baeza, E., J. P. Parra, J. C. López, J. C. Gázquez, M. Kacira, J. I. Montero. 2011. Validation of CFD simulations for three dimensional temperature distributions of a naturally ventilated multispan greenhouse obtained by wind tunnel measurements. Acta Horticulturae, 893: 571-579.

Fitz-Rodríguez, E., J. Nelkin and C. Kubota. 2011. Use of disposable film sensor for analyzing uniformity of daily light integral inside a greenhouse. Acta Horticulturae 893:517-524.

Kubota, C., P. Chia, Z. Yang, and Q. Li. 2011. Applications of far-red light emitting diodes in plant production under controlled environments. Acta Horticulturae 952:59-66

Kroggel, M., W. Lovichit, C. Kubota, and C. Thomson. 2012. Greenhouse baby leaf production in semi-arid climate: seasonal effects on yield and quality. Acta Horticulturae, 952:827-834.

Kubota, C. 2011. Environmental control technologies to improve greenhouse product quality. Acta Horticulturae 952:843-851.

Baeza, E., J. P. Parra, J. C. López, J. C. Gázquez, M. Kacira, J. I. Montero. 2011. Validation of CFD simulations for three dimensional temperature distributions of a naturally ventilated multispan greenhouse obtained by wind tunnel measurements. Acta Horticulturae, 893: 571-579.

Story, D., M. Kacira, C. Kubota and A. Akoglu. 2011. Morphological and textural plant feature detection using machine vision for intelligent plant health, growth and quality monitoring. Acta Horticulturae, 893: 299-306.

Kacira, M., G. Giacomelli, R.L. Patterson, R. Furfaro, P.D. Sadler, G. Boscheri, C. Lobascio, M. Lamantea, R.M. Wheeler, and S. Rossignoli. 2012. System dynamics and performance factors of UA-CEAC lunar greenhouse prototype bioregenerative life support system. Acta Horticulturae, 952: 575-582.

Giacomelli, G., G. Boscheri, R. Furfaro, M. Kacira, C. Lobascio, L. Patterson, P. Sadler, M. Pirolli, R. Remiddi, D. Story, M. Thangavelu, M. Catalina. 2012. Bio-regenerative Life Support System Development for Lunar/Mars Habitats. 42nd Int. Conf. on Environmental Systems, July 15-19, San Diego, California.

Tamimi, E. and M. Kacira. 2012. Analysis of climate uniformity in a naturally vented greenhouse equipped with high pressure fogging system using CFD. Acta Horticulturae, 1008: 177-183.

Juang, P. and M. Kacira. 2013. System dynamics of a photovoltaic integrated greenhouse. Acta Horticulturae (In Press)

Story, D., M. Kacira, L. An, A. Ali and J. Y. Yoon. 2013. Automated machine vision guided plant monitoring system for greenhouse crop diagnostics. Acta Horticulturae (In Press)

Villarreal-Guerrero, F., M. Kacira and J. Flores-Velazquez. 2013. Comparative performance of a greenhouse cooling strategy with natural ventilation and fogging under different outside climates. Acta Horticulturae (In Press)

Bartzanas, T., M. Kacira, T. Boulard, J. C. Roy, H. Fatnassi, P. E. Bournet, N. Katsoulas and C. Kittas. 2013. The use of user defined functions in CFD simulations for greenhouse environment. Acta Horticulture (In Press) (Invited Oral Presentation, GreenSys 2013, Jeju, S. Korea)

Fatnassi, H., T. Boulard, T. Bartzanas, N. Katsoulas, M. Kacira and C. Poncet. 2013. CFD modeling of microclimate in the leaf boundary layer, ecological niche of pests. Acta Horticulturae (In Press)

Gent, M.P.N. 2009.Changes with season of nutrients in salad greens grown in high tunnels. Proceedings New England Vegetable and Fruit Conference, Manchester NH. p 206-208.

Gent, M.P.N. 2009. Recycling used Nutrient Solution for Greenhouse Tomato. Proceedings New England Vegetable and Fruit Conference, Manchester NH. p 251-253.

Gent, M.P.N. 2011. Comparison of Diurnal Variation of Nitrate and Sugars in Lettuce and Predictions of a Model Based on Metabolism. Acta Horticulturae 893:739-745.

Gent, M.P.N., W.H. Elmer, R.J. McAvoy. 2011. Rapid Watering to Achieve Partial Saturation of Root Medium on Flooded Floors. Acta Horticulturae 893:1065-1072.

Gent, M.P.N. and M.R. Short. 2012. Managing a Simple System to Recycle Nutrient Solution to Greenhouse Tomato Grown in Rockwool. Acta Horticulturae 927:913-919.

Gent, M.P.N., W.H. Elmer, R.J. McAvoy. 2012. Water Use Efficiency with Rapid Watering of Potted Plants on Flooded Floors. Acta Horticulturae 927:101-107.

Meyer, G.E., D. Mabie, F.J. Hay, S. Adams, T. Bartels, and J.B. Fitzgerald, 2009. Improved Instrumentation and Controls for Biomass Heating and Impact on Greenhouse Profitability. ASABE Paper Number 09-096884. The American Society of Agricultural and Biological Engineering, St Joseph MI.

Meyer, G.E., E.T. Paparozzi, E. Walter-Shea, and S. A. Adams, 2010. Use of Reflective PAR Mulches to Enhance Winter-time Greenhouse Strawberry Production. ASABE Paper Number 1009783. The American Society of Agricultural and Biological Engineering, St Joseph MI.

Meyer, G.E., G.F. Coffman, K. Conroy, and S.L. Young. 2013. An Advanced Real-time Plant Species Identification System. ASABE Paper Number 131619696. The American Society of Agricultural and Biological Engineering, St Joseph MI.

Mabie, D., G.E. Meyer, S. Adams. 2013. Economic and Environmental Sustainability of Small Nebraska Greenhouse Systems, ASABE Paper Number 131608408. The American Society of Agricultural and Biological Engineering, St Joseph MI.

Brumfield, R.G., A.J. Both, and G. Wulster. 2009. How are greenhouse growers coping with rising energy costs? Southern Nursery Association Research Conference Proceedings. Georgia World Congress Center, Atlanta, GA. February 12-13, 2009. pp. 304-307. Available at: http://www.sna.org/content/Economics and marketing 2009_1.pdf

Both, A.J., T.O. Manning, A. Martin, D.R. Specca, and E. Reiss. 2011. Operating a 250 kW landfill gas fired microturbine at a 0.4 hectare research and demonstration greenhouse. Acta Horticulturae, 893:397-404.

Carleo, J., R.G. Brumfield, S J. Komar, A. Lippet-Faczak, J. Matthews, M. Melendez, R. Mickel, B. O’Neill, and N. Polanin. 2012. A Method of Teaching Farm Women to Write Business Plans in the United States, Journal of the National Association of County Agricultural Agents 5(2). The entire issue is available on the NACAA website at: http://www.nacaa.com/journal/

Özkan, B., R.G. Brumfield, J. Carleo, S.J. Komar, A. Lippet-Faczak, J. Matthews, M. Melendez, R. Mickel, M. Minard, B. O’Neill, and N. Polanin. 2012. Women Farmers’ Empowerment: A case study of New Jersey and Turkey. 14th Annual International Conference of the Global Business and Technology Association. New York City, NY. July 10-14, 2012. Global Business And Technology Association (GBATA) Refereed Conference Readings Book.

Carleo, J.S., R.G. Brumfield, A. Lippet-Faczak, J. Matthews, M. Melendez, B. O’Neill and N. Polanin. 2013. Using an Extraordinary Combination of In-person Education and Distance Learning to Help Women Producers Create Business Plans. 2013 Annual Conference of the American Society for Horticultural Science (ASHS), July 22-25, Palm Desert, CA. This presentation was also chosen to be recorded as part of the ASHS Hort Talks series (www.ASHS.org/db/horttalks) and was compiled as a digital iBook and available for download.

Carleo, J.S., R.G. Brumfield, S.J. Komar, A. Lippet-Faczak, J. Matthews, M. Melendez, R. Mickel, B. O'Neill and N. Polanin. 2013. Impacts of Annie's Project New Jersey - Six Months after Program Delivery. Paper presented at the 2013 Annual Meeting of the Northeast Region of the American Society for Horticultural Science, New Brunswick, NJ. January 2-4, 2013.

Brumfield, R.G., J.S. Carleo, .J. Heckman, A. Lippet-Faczak, J. Matthews, M. Melendez, B. O’Neill and N. Polanin. 2014. Using Technology to Enhance Annie’s Project Women Farmer Training. Acta Horticulturae. (In Press).

De Villiers, D.S., L.D. Albright and R. Tuck. 2012. Next generation, energy-efficient, uniform supplemental lighting for closed-systems plant production. Acta Horticulturae 952:463-470.

Mattson, N.S. and E.D. Harwood 2012. Effect of light regimen on yield and flavonoid content of warehouse grown aeroponic Eruca sativa. LightSym 2012. 7th International Symposium on Light in Horticultural Systems. October 15-18. 2012. Acta Horticulturae. 956:417-422.

Reid, J.E., Klotzbach, K.E., Hoover, N.R. and Mattson, N.S. 2013. Hanging baskets of petunias increase revenue in high tunnel tomato production. ISHS Symposium on High Tunnel Horticultural Crop Production. State College, PA, October 16-19. Acta Horticulturae. 987:67-71.

Popular Articles (Published)

Giacomelli, G.A. 2008. Greenhouse Sustainability: What’s New in Technology, and How will Controlled Environment Plant Production Technology Address Global Issues. Invited keynote lecture, 30th Annual Canada Greenhouse Conference, Toronto, Canada. October 6-9. [Invited lecture].

Giacomelli, G.A. 2008. Controlled Environments: Plant Production Technology Addresses Global Issues. Invited lecture, TTI/Vanguard conference, Controlled Environment Food Production Systems, “All Systems Green,” St. Louis, MO. September 24-25. [Invited lecture].

Giacomelli, G.A. 2008. Controlled Environments (CE): Systems to improve agricultural food production efficiency, productivity, and profitability for specialty crops. Invited presentation by Dr. Dan Cantliffe, Horticultural Sciences Department, Gainesville, FL July 25.

Sabeh, N., C. Kubota, G.A. Giacomelli, 2008. Evaporative Cooling – Water Use for Greenhouse Environmental Control, ASHS-2008 Annual Conference, 21-24 July, Orlando, Florida.

Kubota, C. and C.A. Thomson. 2008. Enhancing nutritional value of fresh tomato under controlled environments - A summary of collaborative research effort. International Symposium on Controlled Environment Agriculture, March 9-12, Cocoa Beach, Florida.

Matsuda, R., C. Kubota, L.M. Alvarez, J. Gamboa, and G.A. Cardineau. 2008 Biopharmaceutical production under controlled environments: photosynthetic rate, soluble protein concentration and growth of transgenic tomato plants expressing a Yersinia pestis F1-V antigen fusion protein. International Meeting on Controlled Environment Agriculture, 8-12 March, 2008, Cocoa Beach, FL.

Li, Q. and C. Kubota. 2008. Effects of supplemental light quality on growth and phytochemicals of baby leaf lettuce grown under white light. ASHS-2008, 21-24 July, Orlando, Florida.

Giacomelli, G.A., 2009. Greenhouse Controlled Environments. PMI Live 1(2):8-9. (in Italian, bimonthly publication Dicembre2009 - Gennaio 2010, Roberta Busatto, Direttore)

Kacira, M. 2013. Choose The Right Greenhouse Style. Greenhouse Grower Magazine.
http://www.growingproduce.com/article/32536/choose?the?right?greenhouse?style

Gent, M., W. Elmer, R. McAvoy, J. Geremia. 2009. Partial saturation ebb&flow watering: water and fertilizer use and plant growth. Plugged In 2008-2009 Issue 6 pages 3-6.

Gent, M.P.N. 2011. Composition of salad greens: A comparison of locally-grown and supermarket produce. Connecticut Agric. Experiment Station Bulletin 1032. 5 pp.
http://www.ct.gov/caes/lib/caes/documents/publications/bulletins/b1032.pdf

Elliott, G, R. McAvoy, M. Gent. 2012. Subirrigation: Watering From The Ground Up. Greenhouse Grower 26 April.
http://www.greenhousegrower.com/article/26828/subirrigation-watering-from-the-ground-up

Paparozzi, E.T., G.E. Meyer, 2012. The Return of Capillary Mats. Greenhouse Grower, August: pp 78-84.

Burnett, S., G. Meyer, M. Van Iersel, and R. Hanson, 2012. Save Water with Automation and Sensors. Greenhouse Grower, July: pp 1-3.

Burnett, S., M. van Iersel, and J. Kim. 2012. Predicting plant water uptake. Greenhouse Grower 3:44, 46.

Both, A.J. and T. Manning. 2008. Solar and wind energy for greenhouses. OFA Bulletin No. 910. September/October issue. pp. 1, 6-7.

Both, A.J. 2008. Energy efficiency: Learning to conserve. Greenhouse Grower 25th Anniversary Issue. December issue. pp. 56, 58.

Both, A.J. 2009. How does sustainability fit into your plan? Greenhouse Management and Production (GMPro). May issue. pp. 26, 28-29.

Both, A.J. 2011. Maintaining the optimum environment. Greenhouse Management and Production (GMPro). June issue. pp. 20-22, 24.

Mitchell, C.A., A.J. Both, C.M. Bourget, J.F. Burr, C. Kubota, R.G. Lopez, R.C. Morrow, and E.S. Runkle. 2012. LEDs: The future of greenhouse lighting! (feature article) Chronica Horticulturae 52(1):6-12.

Both, A.J., R. Hansen, and M. Kacira. 2012. Hydroponics give growers control. Article is part of the Water Wisely series in Greenhouse Grower Magazine. May issue.

Both, A.J. and T. Manning. 2013. Powering up: Utilizing solar and wind energy can help balance the costs of production in your greenhouse facilities. American Nurseryman Magazine. March issue. pp. 16-20.

Leatherwood, W.R., Mattson, N.S. 2008. Microirrigate your way to a greener, more profitable operation. Nursery Management and Production. 24(11):27-32.

Leatherwood, W.R., Mattson, N.S., Owen, J.S. 2008. Clay-amended substrates improve water use and nutrient efficiency. Nursery Management and Production. 24(10):41-43.

Mattson, N.S. and W.R. Leatherwood. 2009. Why you should know the difference between nutrient solubility and mobility. Greenhouse Management and Production. 29(12):22-26.

Burnett, S.E., R.G. Lopez, and N.S. Mattson. 2009. Evaluate your greenhouse to save energy. Greenhouse Management and Production. 29(9):20-26.

Mattson, N.S., S.E. Burnett, B.A. Krug, and R.G. Lopez. 2009. Becoming sustainable by reducing crop shrinkage. Greenhouse Grower. 27(5): 26-32.

Mattson, N.S., W.R. Leatherwood, and C. Peters. 2009. Planting the seeds for consumer success: are your irrigation and fertility practices backfiring on the end consumer and causing garden failure? GrowerTalks Magazine. 73(1):56-59.

Mattson, N.S., W.R. Leatherwood, and C. Peters. 2009. Ten tips to save on fertilizer costs. GrowerTalks Magazine. 72(12):52-56.

Mattson, N.S., W.R. Leatherwood, and C. Peters. 2009. Nitrogen: all forms are not equal. Greenhouse Management and Production. 25(6):18-23.Villarino, G.H and Mattson, N.S. 2011. Solube salts: don’t get burned part 2. Greenhouse Grower Magazine. 29(5).

Leatherwood, W.R. and Mattson, N.S. 2010. Ethylene in the greenhouse: detection and prevention. Greenhouse Grower 28(4).

Leatherwood, W.R. and Mattson, N.S. 2010. Ethylene in the greenhouse: symptoms of short and long term exposure. Greenhouse Grower. 28(3).

Villarino, G.H and Mattson, N.S. 2011. Salts in greenhouse crops: don’t get burned. Greenhouse Grower Magazine. 29(4).

Mattson, N. and B. Krug. 2010. Dealing with Boron deficiency. GrowerTalks Magazine. 74(8):32.

Mattson, N.S. W. Miller and J. Bishop. 2010. Harvesting peat: from the bog to your operation. Greenhouse Product News. 20(10):20-24.

Burnett, S., B. Krug, N. Mattson, R. Lopez, and Currey, C. 2010. Ten ways to heat your house. Grower Talks. 74:64-69.

Mattson, N.S. 2011. Ammonium toxicity: avoid getting burned this winter. GrowerTalks Magazine. 75(6):36.

Villarino, G.H and Mattson, N.S. 2011. Soluble salts: don’t get burned part 2. Greenhouse Grower Magazine. 29(5):46-50.

Villarino, G.H and Mattson, N.S. 2011. Salts in greenhouse crops: don’t get burned. Greenhouse Grower Magazine. 29(4).30-32.Mattson, N.S. and R.C. Hansen. 2012. Manage pH and soluble salts in hydroponics. Greenhouse Grower Magazine. 30(10):43-46.

Krug, B.A., C.J. Currey, R.G. Lopez and N.S. Mattson. 2012. Potted plants on controlled release fertilizers. Greenhouse Grower Magazine. 30(9):S7-9.

Mattson, N.S., B.A. Krug, R.G. Lopez and C.J. Currey. 2012. Don’t neglect the root zone. Greenhouse Grower Magazine. 30(9):S4-6.

Currey, C.J., R.G. Lopez, N.S. Mattson and B.A. Krug. 2012. Bedding plants and controlled release fertilizers. Greenhouse Grower Magazine. 30(9):S2-3.

Reid, J., Klotzbach, K., Hoover, N.R. and Mattson, N. 2012. Finishing hanging baskets in high tunnels. Greenhouse Grower Magazine. 30(8):S9-10.

Currey, C., Lopez, R. and Mattson, N. 2012. Grow better bedding plants in cold weather. 30(8):S2-5.

Mattson, N. and Beeks, S. 2012. Navigating the organic route: using and selecting organic substrates. Greenhouse Management. 31(10):GMP10-14.

Elliott, G. and Mattson, N.S. 2012. Hand watering, booms, sprinklers or drip? Greenhouse Grower Magazine. 30(4):24-27.

Mattson, N. 2012. Slow release: making CRFs work in your greenhouse. Greenhouse Management. 32(1):58-64.

Mattson, N.S. 2011. Ammonium toxicity: avoid getting burned this winter. GrowerTalks Magazine. 75(6):36.Mattson, N., B. Krug and R. Lopez. Promising trends for the future of floriculture education and extension. Greenhouse Grower Magazine. 31:14(94-95).

Albright, L.D. 2013. Peri-urban horizontal greenhouses. ASABE Resource Magazine 20(2):6.

Mattson, N. 2013. Stress is good for plants. Greenhouse Grower Magazine. 31(9):57-58.

Beeks, S. and N. Mattson. 2013. Vermicompost is putting worms to work. Greenhouse Grower Magazine. 31(7):38-44.

Runkle, E., C. Currey, K. Clemens, R. Lopez, W. Miller and N. Mattson. 2013. Ethephon drenches on bedding plants. 2013. Greenhouse Product News. 23(4):14-18.

Miller, W. Mattson, N., R. Lopez, C. Currey, K. Clemens, M. Olrich and E. Runkle. 2013. A new height control possibility for daffodils and hyacinths. Greenhouse Product News. 23(3):20-23.

Other Creative Works

Paparozzi, E. T., Adams, S. A., Meyer, G., Conley, M. E., Schlegel, V., Blankenship, E. and P. E. Read. 2010. Selecting strawberry cultivars for winter greenhouse production. HortScience 45(8):S230 (Abstr.).

Paparozzi, E.T., G.E. Meyer, M. E. Conley, S.A. Adams, E.E. Blankenship, P.E. Read and V.L. Schlegel. 2011. Cultivar Choice Affects Quality and Production of Winter-grown Strawberries. HortScience 46(9):S112 (Abstr.)

Meyer, G. 2013. National Instruments LabVIEW 2012 Greenhouse Monitoring Software. This software was used to monitor greenhouse heating and ventilation system performance along with environmental, crop, floor, and inside glazing temperatures and pot water contents over the internet.

Meyer, G. 2013. National Instruments LabVIEW 2012 Virtual Reality three-dimensional (3D) canopy model of a potted strawberry plant. Software renders lighting to study how leaves are illuminated with changing sun angles as part of a sub project to study the effect of reflective plastic mulch.

Matthews, J., R.G. Brumfield, J.S. Carleo, A. Lippet-Faczak, M. Melendez, B. O’Neill, and N. Polanin. 2013. A New Era in Communication, Merging Tradition and Technology. Poster presented as part of the 2013 National Association of County Agricultural Agents Extension Education poster session at the Galaxy IV Conference in Pittsburgh, PA. September 16-20, 2013.

Matthews, J., R.G. Brumfield, J.S. Carleo, A. Lippet-Faczak, M. Melendez, B. O’Neill, and N. Polanin. 2014. As Seen Online: Using Webinar Technology to Reach Women Farmers. Poster presented at the 2014 Annual Meeting of the Northeast Region of the American Society for Horticultural Science. Philadelphia, PA, January 6-8, 2014.

Mattson, N.S. and M. Bridgen. 2009. Nutrient leaching from garden mums fertilized using water soluble fertilizer, controlled release fertilizer or a combination program. Abstract and presentation at 106th Annual ASHS Conference. St. Louis, MO, July 25-28. HortScience. 44(4):1072.

Leatherwood, W.R., N.S. Mattson,and J.M. Dole. 2009. Possible roles of silicon, calcium, and regulated deficit irrigation on poinsettia plant quality and postharvest performance. Abstract and presentation at 106th Annual ASHS Conference. St. Louis, MO, July 25-28. HortScience. 44(4):1018.

Leatherwood, W.R. and N.S. Mattson. 2009. Long term low concentration ethylene exposure affects growth and development of twenty-eight ornamental taxa. Abstract and presentation at: the 8th International Symposium on the Plant Hormone Ethylene. Ithaca, NY, June 21-25, 2009.

Mattson, N.S. and W.R. Leatherwood. 2009. Fertilizer concentration and irrigation method affects growth of several bedding plant taxa. Abstract and presentation at: GreenSys 2009: International Symposium on High Technology for Greenhouse System. Quebec City, June 14-19, 2009.

Leatherwood, W.R. and N.S. Mattson. 2009. Silicon supplementation of bedding and ornamental greenhouse crops. Abstract and presentation at: GreenSys 2009: International Symposium on High Technology for Greenhouse System. Quebec City, June 14-19, 2009.

Lieth, J.H., N.S. Mattson, and D. Massa. 2009. Modeling N, P, and K uptake of flush-harvested cut flower roses: calibration of a model under high and low irradiance. Abstract and presentation at: GreenSys 2009: International Symposium on High Technology for Greenhouse System. Quebec City, June 14-19, 2009.Villarino, G.H. and Mattson, N.S. 2010. Effects of sodium chloride on growth and morphology of two Petunia cultivars. Abstract and presentation at 107th Annual ASHS Conference. Palm Desert, CA, August 2-5. HortScience 45(8):S95.

Albright, L.D. 2010. Local Food Production in a Carbon-Constrained World. Building Partnerships and Pathways to Address Engineering Grand Challenges Workshop. University of Texas, El Paso. Feb. 2010.

Leatherwood, W.R., N.S. Mattson. And J. Dole. 2010. Silicon supplementation and regulated deficit irrigation improve poinsettia quality and postharvest performance. Abstract and presentation at 107th Annual ASHS Conference. Palm Desert, CA, August 2-5. HortScience 45(8):S47.

Leatherwood, W.R. and N.S. Mattson. 2010. Long-term low-concentration ethylene exposure affects growth, flowering and development of 28 ornamental taxa. Abstract and presentation at 107th Annual ASHS Conference. Palm Desert, CA, August 2-5. HortScience 45(8):S95-96.

Song, J.Y., Sivanesan, I., Mattson, N. and B.R. Jeong. 2010. Use of petal explants for successful transformation of Chrysanthemum x morifolium ‘Orlando’ mediated by Agrobacterium tumefaciens. Abstract and presentation at 107th Annual ASHS Conference. Palm Desert, CA, August 2-5. HortScience 45(8):S47.

Lamb, E., Eshenaur, B., Mattson, N. and Sanderson, J. 2012. On the road again: Taking hands-on greenhouse IPM workshops to the growers. Abstract and poster at 7th International IPM Symposium. Memphis, TN, March 27-29, 2012.

Reid, J.E., K. Klotzbach, N. Hoover, and N.S. Mattson. 2011. Hanging baskets of petunias increase revenue in high tunnel tomato production. Abstract and presentation at ISHS Symposium on High Tunnel Horticultural Crop Production. State College, PA, October 16-19, 2011.

Mattson, N.S. and T. Putzke. 2011. Substrate and fertilizer choice interact to affect growth of conventionally and organically produced Calibrachoa ‘Cabaret Lavender'. Abstract and presentation at 108th Annual ASHS Conference. Waikoloa, HI, September 25-28. HortScience 46(9):S108-109.

Little, H. and N.S. Mattson. 2011. Applications of silicon and a commercially available extract of the brown seaweed ascophyllum nodosum delayed wilting in greenhouse-grown Petunia, snapdragon, and tomato. Abstract and presentation at 108th Annual ASHS Conference. Waikoloa, HI, September 25-28. HortScience 46(9):S105-106.

Villarino, G.H., M. Hanson, M. Scanlon, D. Nero and N.S. Mattson. 2011. Cloning, sequencing, characterizing and assessing functionality of the Petunia trehalose-6-phosphate synthase (TPS1) gene through complementation in yeast. Abstract and presentation at 108th Annual ASHS Conference. Waikoloa, HI, September 25-28. HortScience 46(9):S103-104.

Villarino, G.H. and N.S. Mattson. 2011. Assessing tolerance to sodium chloride salinity in fourteen floriculture species. Abstract and presentation at 108th Annual ASHS Conference. Waikoloa, HI, September 25-28. HortScience 46(9):S209.

Albright, L.D. 2012. Vertical Greenhouses. Presented at the 2012 annual meeting of the AERGC, Toronto, Canada.

Beeks, S. and Mattson, N. 2013. Investigating vermicompost as the primary fertilizer source in organic vegetable and flower transplant production. Abstract and presentation 110th Annual ASHS Conference. Palm Desert, CA, July 22 – 25, 2013.

Beeks, S. and Mattson, N. 2012. The use of vermicompost as an organic fertility source in vegetable and herb transplant production. Abstract and poster 109th Annual ASHS Conference. Miami, FL, July 31 – August 3, 2012.

Mattson, N.S. , Lamb, E., Eshenaur, B. and Sanderson, J. 2013. IPM In-depth: A New York model for hands-on interactive greenhouse workshops. Presentation at the National Floriculture Forum, Manchester, NH, March 23, 2013.

Mattson, N.S. and E.D. Harwood. 2012. Effect of light regimen on yield and flavonoid content of warehouse grown aeroponic Eruca sativa. Abstract and poster 7th International Symposium on Light in Horticultural Systems. Wageningen, Netherlands, October 15-18, 2012.

Moyal Ben Zvi, M. and Mattson, N. 2012. Assessment of the effect of silicon on the morphology and physiology of petunia plants grown in the presence of varying salt concentrations. Abstract and poster at International Annual Meetings of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Cincinnati, OH, October 21-24, 2012.

Moyal Ben Zvi, M., Zhang, C., and Mattson, N. 2012. Silicon drenches improve drought stress tolerance in Poplar. Abstract and poster 109th Annual ASHS Conference. Miami, FL, July 31 – August 3, 2012.

Villarino, G.H. and Mattson, N. 2013. Optimization of RNA-seq analysis using the non-model plant Petunia x hybrida under salt stress. Abstract and presentation 13th World Petunia Days. Nijmegen, Netherlands, September 2013.

Burnett, S., N. Mattson, R. Lopez, and B. Krug. Floriculture sustainability research coalition: bringing the latest sustainability research to the industry. March 10, 2011. Dallas, TX. National Floriculture Forum.

Villarino, G.H. and N.S. Mattson. 2011. Plant adaptation to salt/drought stress: elucidating the role of trehalose in model organisms Yeast, Petunia and Arabidopsis. Poster at: 7th Symposium of plant biology; Genetics of Adaptations. Harvard University, Cambridge, MA. May 5.

Extension Publication

N. Sabeh, and G. Giacomelli. 2008. Evaporative Cooling Water Use. University of Arizona Cooperative Extension Fact Sheet.

Manning, T., A.J. Both, and J. Rabin. 2010. Understanding on-farm utility costs and billing (FS1128).

Runkle, E. and A.J. Both. 2011. Greenhouse energy conservation strategies. MSU Extension Bulletin E-3160.

Bridgen, M.P., L. Hyatt, and N. Mattson. 2009. Use of controlled release fertilizer (CRF) programs to prevent nutrient leaching from field-grown potted chrysanthemums. 2008 Annual Report, Long Island Horticultural Research & Extension Center, Cornell University. Riverhead, NY. Horticulture Bulletin #57: 57.

Mattson, N.S. 2009. “Free” Money! Federal program offers grants for energy efficiency. Long Island Horticulture News. March, 2009. 1-3.

Mattson, N.S. 2009. “Free” Money! Federal program offers grants for energy efficiency. Hudson Valley Horticulture. 9(2).Mattson, N. and R. Lopez. 2011. USDA Rural Energy for America Program Grants (REAP) for greenhouse energy efficiency. OFA Bulletin. (925):23-24.

Mattson, N.S. 2010. Now is the time to prepare a fertilizer “tool kit” for your spring greenhouse crops. Long Island Horticulture News. March 2010, 5.

Mattson, N.S. 2010. Editor/contributor: Chapter 11 Growth Regulators for Greenhouse Floral Crops in K.C. Bennett (ed.) 2010 Cornell Guide for the Integrated Management of Greenhouse Floral Crops. 137-144.

Mattson, N.S. 2010. Editor/contributor: Chapter 10 Growth Regulation of Greenhouse Floral Crops in K.C. Bennett (ed.) 2010 Cornell Guide for the Integrated Management of Greenhouse Floral Crops. 133-136.

Frantz, J.M., J.C. Locke and N. Mattson. 2010. Research update: does silicon have a role in ornamental crop production? OFA Bulletin. (924):17-18.

Mattson, N. and S. Burnett. 2011. Organic Substrates and Fertilizers. OFA Bulletin. 929:13-15.

Mattson, N. and B. Krug. 2011. Identify boron deficiency and corrective/preventative actions. The Indiana Flower Grower. 5(1):6.

Leatherwood, R. and N.S. Mattson. 2012. Adding silicon to the fertilizer program in poinsettia production: benefits and facts. Capital District Growing Trends. 16(10):1-2.

Lamb, E., B. Eshenaur, N.S. Mattson, J.P. Sanderson. 2013. Practical suggestions for managing fungus gnats in the greenhouse.
http://www.nysipm.cornell.edu/factsheets/n_gh/fungus_gnat.pdf

Mattson, N.S. and S.A. Beeks. 2013. Extensive soil mix studies for greenhouse production of seedlings and transplants. New England Vegetable and Fruit Conference proceedings. December 17-19, Manchester, NH. 205-207.

Mattson, N.S. and S.A. Beeks. 2013. Extensive soil mix studies for greenhouse production of seedlings and transplants. The Produce Pages - a newsletter for vegetables, small fruit, tree fruit and grape growers in Eastern New York. 1(2):13-15.

Videos

Giacomelli, G. 2009. Mile high city, urban agriculture, and vertical farms...a look at reality at EuroFresh Farms and the CEAC. Edna Sun, videographer. With David Letich, EuroFresh Farms. Discovery Channel, September 2009.

Giacomelli, G. 2009. Prototype Lunar Greenhouse and CEAC. Documentary video by Chip Prosser, ChipPro, LLC

Giacomelli, G.A. and M.F. Munday, Special Editors, Resource Special Issue on Urban Agriculture. March/April 2013.
http://bt.e?ditionsbyfry.com/publication/?i=148288 Videos, produced by Mike Munday, Desert Rain Research, describe and promote the activities of the CEAC and faculty who are directly involved. For example, "No Ordinary Tomorrows”
http://www.youtube.com/watch?v=2e0zwlTkZoI

Presentations and Abstracts

Kacira, M. 2008. Energy efficient and high quality crop production through plant sensing in greenhouses. Presented at ISHS International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions, October 20-24. [Oral]

Story, D., M. Kacira, A. Akoglu and C. Kubota. 2008. A Machine Vision Guided System for Plant Health and Growth Monitoring in Controlled Environment Agriculture Production. Presented at ISHS International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions, October 20-24. [Poster]

Guerrero, F. V. and M. Kacira. 2008. Determining Penman-Monteith coefficients for tomato crop grown in semi-arid greenhouse under three different greenhouse cooling settings. Presented at ISHS International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions, October 20-24. [Poster]

Schoonderbeek, J. and M. Kacira. 2008. Large scale concentrated solar power and greenhouse: A perfect match with some challenges. Presented at ISHS International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions, October 20-24. [Poster]

Kubota, C. and C.A. Thomson. 2008. Enhancing nutritional value of fresh tomato under controlled environments - A summary of collaborative research effort. International Symposium on Controlled Environment Agriculture, March 9-12, Cocoa Beach, Florida. [Oral]

Matsuda, R., C. Kubota, L.M. Alvarez, J. Gamboa, and G.A. Cardineau. 2008 Biopharmaceutical production under controlled environments: photosynthetic rate, soluble protein concentration and growth of transgenic tomato plants expressing a Yersinia pestis F1-V antigen fusion protein. International Meeting on Controlled Environment Agriculture, 8-12 March, 2008, Cocoa Beach, FL. [Oral]

Justus, I. and C. Kubota. 2008. Development of a cold storage technique for grafted muskmelon seedlings. International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions, October 20-24, Tucson, AZ. [Oral]

Chia, P., Q. Li, and C. Kubota. 2008. Strategic use of far-red light and its control in plant production. International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions, October 20-24, Tucson, AZ. [Poster]

Giacomelli, G.A. 2009. Selecting Greenhouse Structures and Environments to Meet Your Production Expectations. Greenhouse Growers Association of Mexico (AMHPAC). Guadalajara, Mexico, August 26 – 28. [Invited lecture].

Kacira, M. 2009. Engineering concerns and opportunities for sustainable greenhouse systems. International Symposium on High Technology for Greenhouse Systems (GreenSys2009). University of Laval. Quebec, Canada, June 14-19. [Invited Presentation]

Kacira, M. 2009. Sustainable Controlled Environment Plant Production Systems. Systems and Industrial Engineering Department, University of Arizona.

Story, D., M. Kacira, C. Kubota. A. Akoglu. 2009. Autonomous plant health/growth monitoring with machine vision in controlled environments. Presented at ASABE Annual International Meeting, Reno, Nevada.

Giacomelli, G., R.L. Patterson, E. Fitz-Rodriquez, M. Kacira, P. Sadler. 2009. Support of CEA Applications with Telepresence. HortScience, 44(4): 1070-1071.

Villarreal-Guerrero, F., M. Kacira, E. F. Rodriguez, R. Linker, A. Arbel, C. Kubota, G. Giacomelli. 2010. Developing a Control Strategy for Greenhouses Equipped with Natural Ventilation and Variable Pressure Fogging: Evapotranspiration Models and Simulated Comparison of Fixed and Variable Pressure Fog Cooling. ASABE Paper No. 1009388. St. Joseph, Michigan.

Rodriguez, E. F., M. Kacira, F. Villarreal-Guerrero, C. Kubota, G. Giacomelli, R. Linker, A. Arbel. 2010. Dynamic Response and Environmental Uniformity of a Naturally Ventilated Greenhouse Cooled with a Variable-Pressure Fogging System. ASABE Paper No. 1009436. St. Joseph, Michigan.

Rodriguez, E. F., M. Kacira, F. Villarreal-Guerrero. 2010. Comparison of a Dynamic Model and Neural Network Model for Predicting the Environment of a Naturally Ventilated and Fog-cooled Greenhouse. ASABE Annual International Meeting, Pittsburg, PA, June 13-16.

Gregory, M. S., D. Story, A. Akoglu, M. Kacira. 2010. A Node and Network Level Self-Healing Distributed Wireless Sensor Architecture for Greenhouse Based Plant Monitoring Systems. ASABE Paper No. 1009468. St. Joseph, Michigan.

Kacira, M. 2010. Improving production quality and resource use efficiency by plant sensing and monitoring. Scholar in Residence Program, Johnson County Community College, Kansas City, KS, October 2010.

Kacira, M. 2010. Engineering concerns and opportunities for sustainable greenhouse systems. Scholar in Residence Program, Johnson County Community College, Kansas City, KS, October 2010.

Kubota, C. 2011. Environmental control technology to improve product quality. GreenSys2011 "Advanced technologies and management towards sustainable greenhouse ecosystems," Haldikidi, Greece, June 05-10. (Invited Lecture)

Sadler, P., G. Giacomelli, , L. Patterson, M. Kacira, R. Furfaro, C. Lobascio, G. Boscheri, M. Lamantea, L. Grizzaffi, S. Rossignoli, M. Prirolli, and S. DePascale. 2011. Bio-regenerative Life Support Systems for Space Surface Applications. The 41st International Conference on Environmental Systems (ICES), Portland, Oregon, July 17-21.

Patterson, R. L., P.D. Sadler, R.M. Wheeler, M. Kacira, and G.A. Giacomelli. 2011. Description, Operation and Production of the South Pole Food Growth Chamber. GreenSys2011 "Advanced technologies and management towards sustainable greenhouse ecosystems," Haldikidi, Greece, June 05-10.

Kacira, M. 2011. Plant factory production systems in the United States. CIGR International Conference on "Sustainable Bioproduction - Water, Energy, and Food, Tokyo, Japan, September 2011. (Session Keynote Lecture)

Kacira, M. 2011. Resource use efficient greenhouse production in semiarid climate. Chinese and Japanese Society Concurrent Meeting, CIGR International Conference on "Sustainable Bioproduction - Water, Energy, and Food, Tokyo, Japan, September 2011.

Kacira, M., G. Giacomelli, L. Patterson, R. Furfaro, P. Sadler, G. Boscheri, R. Wheeler, C. Lobascio, M. Lamantea, S. Rossignoli. 2011. System Dynamics and Performance Factors of UA-CEAC Lunar Greenhouse Prototype Bioregenerative Life Support System. GreenSys2011 "Advanced technologies and management towards sustainable greenhouse ecosystems," Haldikidi, Greece, June 05-10.

Villarreal-Guerrero, F., M. Kacira, E. F. Rodriguez, C. Kubota, G.A. Giacomelli, R. Linker, A. Arbel. 2011. Simulation of Fixed and Variable Pressure Fogging in a Naturally Ventilated Greenhouse, Water and Energy Savings and Stability of Climate. GreenSys2011 "Advanced technologies and management towards sustainable greenhouse ecosystems," Haldikidi, Greece, June 05-10.

Rodriguez, E. F., M. Kacira, F. Villarreal-Guerrero. 2011. Neural Network Predictive Control in a Naturally Ventilated and Fog Cooled Greenhouse. GreenSys2011 "Advanced technologies and management towards sustainable greenhouse ecosystems," Haldikidi, Greece, June 05-10.

Linker, R., M. Kacira, and A. Arbel. 2011. Robust climate control of a greenhouse equipped with forced ventilation. ASABE Annual and International Meeting, August 7-10.

Kacira, M. 2012. Advanced Monitoring and Control of Greenhouse System for Optimized Resource Use Efficiency. Agronomy Week Conference, Faculty of Agronomy, University of San Luis Potosi, San Luis Potosi, Mexico, February 2012. (Keynote Lecture)

Kacira, M. 2012. Engineering CEA Systems for Sustainable Production. Arid-Land Agricultural Research Center (ALARC), Maricopa, AZ, June 2012.

Juang, P. and M. Kacira. 2013. System dynamics of a photovoltaic integrated greenhouse. Invited Oral Presentation, GreenSys 2013, Jeju, S. Korea.

Story, D., M. Kacira, L. An, A. Ali and J. Y. Yoon. 2013. Automated machine vision guided plant monitoring system for greenhouse crop diagnostics. Oral Presentation, GreenSys 2013, Jeju, S. Korea.

Villarreal-Guerrero, F., M. Kacira and J. Flores-Velazquez. 2013. Comparative performance of a greenhouse cooling strategy with natural ventilation and fogging under different outside climates. Oral Presentation, GreenSys 2013, Jeju, S. Korea.

Bartzanas, T., M. Kacira, T. Boulard, J. C. Roy, H. Fatnassi, P. E. Bournet, N. Katsoulas and C. Kittas. 2013. The use of user define functions in CFD simulations for greenhouse environment. Invited Oral Presentation, GreenSys 2013, Jeju, S. Korea.

Fatnassi, H., T. Boulard, T. Bartzanas, N. Katsoulas, M. Kacira and C. Poncet. 2013. CFD modeling of microclimate in the leaf boundary layer, ecological niche of pests. Oral Presentation, GreenSys 2013, Jeju, S. Korea.

R. McAvoy. 2010. Controlling plant growth without PGRs. University of Connecticut Spring Bedding Plant Conference Series. Feb 9 (Vernon, CT ) and Feb 23 (Torrington, CT).

R. McAvoy. 2010. Reducing Plant Stretch Sustainably. 2010. Mass Flower Growers, Winter Flower Growers and Retailers Program. Stow, MA (Feb 10, 2010).

R. McAvoy. 2012. Handling wastewater from the greenhouse. University of Connecticut Spring Bedding Plant Conference Series. Feb 7 (Vernon, CT ) and Feb 14 (Torrington, CT).

Burnett, S. and S. Zhen. 2013. Water use and cold hardiness of English lavendar. (Abstract) American Society for Horticultural Science, Palm Desert, CA July 2013.

Albright, L.D. 2012. Vertical Greenhouses. Presented at the 2012 annual meeting of the AERGC, Toronto, Canada.

Beeks, S. and Mattson, N. 2012. The use of vermicompost as an organic fertility source in vegetable and herb transplant production. Abstract and poster 109th Annual ASHS Conference. Miami, FL, July 31 – August 3, 2012.

Beeks, S. and Mattson, N. 2013. Investigating vermicompost as the primary fertilizer source in organic vegetable and flower transplant production. Abstract and presentation 110th Annual ASHS Conference. Palm Desert, CA, July 22 – 25, 2013.

Mattson, N.S. and E.D. Harwood. 2012. Effect of light regimen on yield and flavonoid content of warehouse grown aeroponic Eruca sativa. Abstract and poster 7th International Symposium on Light in Horticultural Systems. Wageningen, Netherlands, October 15-18, 2012.

Moyal Ben Zvi, M. and Mattson, N. 2012. Assessment of the effect of silicon on the morphology and physiology of petunia plants grown in the presence of varying salt concentrations. Abstract and poster at International Annual Meetings of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Cincinnati, OH, October 21-24, 2012.

Moyal Ben Zvi, M., Zhang, C., and Mattson, N. 2012. Silicon drenches improve drought stress tolerance in Poplar. Abstract and poster 109th Annual ASHS Conference. Miami, FL, July 31 – August 3, 2012.

Mattson, N.S. , Lamb, E., Eshenaur, B. and Sanderson, J. 2013. IPM In-depth: A New York model for hands-on interactive greenhouse workshops. Presentation at the National Floriculture Forum, Manchester, NH, March 23, 2013.

Villarino, G.H. and Mattson, N. 2013. Optimization of RNA-seq analysis using the non-model plant Petunia x hybrida under salt stress. Abstract and presentation 13th World Petunia Days. Nijmegen, Netherlands, September 2013.

Workshop Sponsor

ISHS International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions. 2008. G. Giacomelli, Convener and Chair; organizing committee with C. Kubota and M. Kacira, Organizing Committee members and Editors of Acta Horticulturae Proceedings #797, Tucson, AZ, October 20 – 24. (28 different countries represented by 130 participants)

Greenhouse Crop Production and Engineering Design Short Course. Eye on Economics and Energy, April 26-29, 2009.