RESEARCH NEBRASKA is published twice a year by the Communications and Information Technology unit at the University of Nebraska-Lincoln under the auspices of the Dean of the Agricultural Research Division in the Institute of Agriculture and Natural Resources.

Written material may be reprinted provided no endorsement of a commercial product is stated or implied. Please credit RESEARCH NEBRASKA,University of Nebraska-Lincoln. To simplify technical terminology, trade names sometimes are used. No endorsement of products is intended nor is criticism implied of products not mentioned.

There is no charge for RESEARCH NEBRASKA. Each issue describes a few of the widely diverse research projects ongoing in IANR's Agricultural Research Division. The magazine is a report to interested taxpayers. Send comments, questions and subscription requests to: Editor, RESEARCH NEBRASKA, 203 Agricultural Communications Building, P.O. Box 830918, University of Nebraska-Lincoln, Lincoln, NE 68583-0918.

The University does not discriminate in its academic, employment or admissions programs, and abides by all federal regulations pertaining to same.

Chancellor, University of Nebraska-Lincoln
James Moeser

Vice Chancellor, Institute of Agriculture
and Natural Resources
Irvin T. Omtvedt

Dean and Director, Agricultural Research Division
Darrell W. Nelson

Editors
Vicki Miller
Daniel R.Moser
Linda Ulrich

Contributing Writers
Cheryl Alberts
Molly Klocksin
Monica Manton Norby
Steve Ress

Graphic Design
Gary Goodding

Staff Photographer
Brett Hampton

March 1999
Volume 10, Number 1