I would like to acknowledge the contributions of Drs. Steven Myers, Tom Crocker, Gerrard Krewer, Darbie Granberry, Sharad Phatak, Darrell Sparks, Ray Worley, Jeff Lewis, Jim Midcap, John Gibson, and Henry Clay of the Horticulture Department for supplying supplemental information and reviewing sections of this publication. I would also like to acknowledge Drs. Bob Carrow, Gil Landry, Gary Gascho, Jerry Johnson, Ken Ohki, Troy Johnson, Bill Segars and Malcolm Sumner of the Agronomy Division for their helpful comments and suggestions in revising this HANDBOOK. Special thanks are also extended to Mrs. Jeanette Stroer for typing the manuscript.

Dr. C. Owen Plank