Alwyn Williams, Department of Agronomy and Plant Genetics, University of Minnesota, Jessup, MD, Adam Davis, USDA-ARS Global Change and Photosynthesis Research Unit, Urbana, IL, Andrea Jilling, Natural Resources and the Environment, Oklahoma State University, Stillwater, OK, US, Stuart Stuart Grandy, Natural Resources and Environment, University of New Hampshire, Durham, NH, Roger T. Koide, Department of Biology, Brigham Young University, Provo, UT, David Mortensen, Plant Science, The Pennsylvania State University, University Park, PA, Richard G. Smith, Natural Resources and Environment, University of New Hampshire, Durham, NH, US, Sieglinde S. Snapp, Room A282, Michigan State University, East Lansing, MI, US, Kurt A. Spokas, 439 - Borlaug Hall, USDA-ARS, St. Paul, MN, Anthony C. Yannarell, Natural Resources and Environmental Sciences, University of Illinois-Urbana-Champaign, Urbana, IL and Nicholas R. Jordan, Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, MN