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Heidi A. Kratsch, Ruby Ward, Margaret Shao and Larry A. Rupp

The green industry in Utah is a large and diverse group that ranges from nursery/greenhouse growers and retailers to landscape maintenance and design professionals to irrigation and turf industry professionals. Because of the size and diverse membership of the Utah green industry, extension faculty are challenged to gauge the needs and attitudes of the industry as a clientele group. In 2007, we conducted a mail survey of the Utah green industry to identify the learning preferences of industry members, to better understand the structure and extent of Utah green industry businesses, and to elicit industry perceptions about present and future challenges to success. We found that the service sector is a significant component of Utah's green industry, and that extension-based short courses can be used to provide more advanced and targeted education to specific industry groups. Drought/water issues and labor shortages were viewed as significant challenges to the future of the green industry, and these could be used as a foundation for building strategic alliances between extension and the green industry in Utah. Results of our survey will be useful to green industry professionals and extension educators that deal with green industry education, particularly in states with service- rather than production-oriented businesses.

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Britney Hunter, Dan Drost, Brent Black and Ruby Ward

In northern climates where the growing season is shortened by cool spring conditions, high tunnels make it possible to plant and produce tomatoes (Solanum lycopersicum L.) at least 1 month earlier than in the field. However, limited high-tunnel research has been performed in arid high-elevation regions that experience extreme diurnal temperature fluctuations. High tunnels are designed to be passively heated; therefore, additional protection from frost may be warranted if growers wish to plant significantly earlier than normal. Low tunnels built within a high tunnel reduce the energy requirement by concentrating heat around the plants, particularly when a heat source is placed inside the low tunnel. ‘Sunbrite’ tomatoes were transplanted through black plastic mulch in four high tunnels in North Logan, UT (lat. 41.73° N, long. 111.83° W, 1382 m elevation) on 17 Mar., 30 Mar., and 7 Apr. in 2009 and on 19 Mar., 30 Mar., and 9 Apr. in 2010. Low tunnels were constructed over each row, and three supplemental heat treatments (unheated, soil-warming cables, and soil-warming cables plus 40-W incandescent lights) were tested to improve plant performance. The highest total marketable yield was achieved for earliest planting dates in both 2009 and 2010. In 2009, early-season yield was significantly greater when both the soil + air were heated, but only for the earliest planting date. In 2010, soil heat alone and in conjunction with air heat significantly improved early-season yield. Information gathered in this study on planting dates, yield, and energy costs provides valuable production and economic information to growers in arid high-elevation climates who desire the benefits of growing early-season tomatoes in high tunnels.

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Rick Heflebower, Teresa Cerny-Koenig, Molly Waters and Ruby Ward

A cooperative program to recognize water-wise plants for Utah landscapes was developed by 10 horticulture and water organizations throughout the state. Representatives from each of the organizations met to develop a plant list containing woody and ornamental species that were attractive in the landscape, water conserving, adapted to the climate, and available in the industry. A yellow tag with the words “water-wise plant” outlined by the state of Utah was designed by the committee and used to identify the plants. Tags were provided at no cost to garden centers due to the funding of the organizations. A survey conducted at the end of the first season gave very favorable results. Sixty-seven percent of the participating nurseries indicated they would “definitely” participate in the program again, and 27% indicated they “probably” would participate. The Water-Wise Plant Tagging Program serves as a model of how universities, governmental agencies, and private businesses can work together to accomplish a common goal.