KENNETH J. MOORE is Professor of Agronomy at Iowa State University. He received his BS from Arizona State University and his MS and PhD from Purdue University, He has taught graduate-level courses in field plot technique and design, pasture and grazing management, and forage quality and utilization. He advises graduate students and conducts research on pasture management and ecology.

MICHAEL COLLINS is Emeritus Professor and Director of the Division of Plant Sciences at the University of Missouri, Columbia. He received his BS from Berea College, his MS from West Virginia University, and his PhD from the University of Kentucky. During a 36-year career in forage research and teaching at the University of Kentucky, Lexington and the University of Wisconsin, Madison, he taught an undergraduate/graduate forages course and advised graduate students. His research emphasized forage management and postharvest physiology of hay and silage, with an emphasis on forage quality.

C. JERRY NELSON is Emeritus Curators' Professor of Plant Sciences at the University of Missouri. He received his BS and MS from the University of Minnesota, and his PhD from the University of Wisconsin. His research has focused on growth of grasses and persistence of legumes, and he is now active in agriculture-related international programs, especially in Asia.

DAREN D. REDFEARN, Associate Professor of Agronomy, University of Nebraska, Lincoln, NE, USA.