When a radical emerges from a seed. Percent germination is the percentage of seeds in a test sample that germinate in a given time. ((Seeds germinated by dayx/Total number of seeds tested) X 100 = % germination).
Restoration efforts are often challenged by a lack of knowledge regarding seed dormancy and germination requirements. These same factors can impede seed longevity monitoring in seed banks and other conservation initiatives. In this video, we will learn about the five classes of seed dormancy: physical, physiological, morphological, combinational, and morphophysiological. Seeds in each class of […]
Melissa K. McCormick, Dennis F. Whigham, Rachel Rock-Blake, Hope E.A. Brooks North American Orchid Conservation Center (NAOCC) and Smithsonian Environmental Research Center (SERC) Orchids are widely threatened and endangered worldwide, but efforts to conserve and restore them has been limited by not knowing about the pollinators and fungi they need to grow and reproduce. The […]
Brenda Molano-Flores, Illinois Natural History Survey, University of Illinois: Urbana-Champaign, Sara Johnson, Department of Natural Resources and Environmental Science at University of Illinois: Urbana-Champaign, & Janice Coons, Eastern Illinois University Macbridea alba (Lamiaceae) is a federally threatened and state endangered perennial herbaceous mint. It is endemic to grassy pine flat woods and occupies a range […]