Introduction

Nick E. Christians and David D. Minner

The following research report is the 22nd yearly publication of the results of turfgrass research projects performed at Iowa State University. Copies of information in earlier reports are available from most of the county extension offices in Iowa. This is the fourth year that the entire report is available on the Internet. This report and the previous years' reports can be accessed at:

http://www.hort.iastate.edu/pages/pubs/p_frame.html

Several new projects were started in the 2000 season. The Kentucky bluegrass trial was replaced with a new trial that includes the latest cultivars. A new non-irrigated fairway-height Kentucky bluegrass trial was also established. This is in addition to the irrigated fairway height bluegrass study that was established in 1998. Poa supina and seeded bermudagrass continue to be evaluated as alternative grasses for athletic turf. A new project was started in 2000 to evaluate traffic tolerance of several grass species in the seedling and early establishment stage. The Heatway study which was established in 1997 is also being used to evaluate bermudagrass survival in winter conditions.

We would like to acknowledge Will Emley, superintendent of the ISU Horticulture Research Station; Rod St. John, manager of the turf research area; Barbara Bingaman, Postdoctoral researcher; Federico Valverde, research associate; Dr. Young Joo, visiting scientist; Deying Li, Mark Howieson, Troy Oster, Natalie Canier, and Jason Kruse, graduate students; and all others employed at the field research area in the past year for their efforts in building the turf program.

Special thanks to Lois Benning for her work in typing and helping to edit this publication.

Edited by Nick Christians and David Minner, Iowa State University, Department of Horticulture, Ames, IA 50011-1100.