Emergence and growth of four native Intermountain West perennial grasses under six water availability regimes

These data were compiled to evaluate the effects of seed coat treatments on the emergence and growth of four native Intermountain West perennial grasses exposed to six different water availability regimes. The objective of our study was to evaluate how seed coat treatments influence seed response and seedling performance for different species exposed to different regimes of water availability. The data represent emergence (amount and timing), growth (growth rate, total biomass), and biomass allocation (root to shoot ratio) among four grasses that received seed coat treatments across six regimes of water availability. The data were collected in a greenhouse at Northern Arizona University in Flagstaff, Arizona from February 6, 2024 to March 29 2024. These data were collected by U.S. Geological Survey employees through biweekly visits to the greenhouse to collect data on emergence, emergence date, plant height, and biomass at the end of the experiment. These data can be used to assess species and seed coat response to different water availability regimes in a greenhouse setting and interpretations can assist with planning seed coat treatments for these species for restoration experiments or projects in natural field settings.