MICHAEL D. CASLER, PhD, is a research geneticist with the USDA-ARS and professor in the Department of Agronomy at the University of Wisconsin--Madison. A member and former chair of the Plant Breeding and Plant Genetics program at the university, he's written more than 100 peer-reviewed publications, spoken at numerous international conferences, and developed and registered four improved cultivars of perennial grasses. RONNY R. DUNCAN, PhD, is a professor of Turfgrass Breeding and Stress Physiology in the Crop and Soil Sciences Department at the University of Georgia, Griffen. He's the auth...