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- Author or Editor: Diane M. Narem x
We tested prairie dropseed (Sporobolus heterolepis) using six different germination treatments and found the best results with cold (40 °F), dry storage followed by direct seeding into a commercial germination mix placed in a 75 °F glass-glazed greenhouse with intermittent mist (5 seconds of mist every 8 minutes), and 600-W high-pressure sodium lighting with a 16-hour daylength. We found commercial laboratory viability analysis from tetrazolium staining did not correspond to germination results. Cold (34 °F), moist (2.3 g seed moistened with 2.5 mL deionized water) treatment, also known as cold conditioning, produced significantly less germination and fewer transplantable seedlings, and is not recommended for prairie dropseed.
The demand for native plants has been increasing as consumers exhibit stronger interest in sustainable gardening and landscaping. To determine whether point of sale (POS) displays increased consumer knowledge of native grass (Poaceae) benefits and affected consumer purchases, a marketing study was conducted over 2 years at five garden centers in Minnesota. A POS display poster and plant tags listing four benefits of native grasses were displayed at the garden centers in 2016 and 2017. We surveyed 341 consumers at these garden centers to understand consumer knowledge of native grasses and the influence of the POS display. Respondents totaled 84 (30.7%) who indicated they had bought a native grass that day, and of those 84, 54 (64.3%) had seen the display. The binary probit model estimates showed that seeing the POS display increased the likelihood of a native grass purchase. If a consumer had previously purchased a native grass, they were more likely to purchase a native grass again. Consumers who expressed a greater willingness to purchase native grasses based on their environmental benefits were more likely to purchase a native grass. However, neither the level of knowledge that consumers possessed about native grasses nor demographics significantly increased likelihood of purchase.