The Georgia Agricultural Experiment Station
College of Agricultural and Environmental Sciences
The University of Georgia

Research Report Number 659
August 1999



PREFACE


   Results of the 1998-99 performance tests of small grains grown for grain and forage are printed in this research report.  Grain-evaluation studies were conducted at five locations, including Tifton, Plains, and Midville in the Coastal Plain region, Griffin in the Piedmont region, and Calhoun in the Limestone Valley region.  Small grain forage evaluation tests were conducted at three locations that included Tifton and Plains in the Coastal Plain, and Griffin in the Piedmont.  For identification of the test locations, consult the map inside the back cover of this report.

   Grain yields are reported as bushels per acre at 13.5% moisture for wheat, 13% for triticale and rye, 12.5% moisture for oats, and 12% moisture for barley.  Additional agronomic data such as plant height, lodging, disease incidence, etc., are listed along with the corresponding yield data.  Information concerning culture and fertilizer practices used is included in footnotes.  Since the average yield from several years indicates a variety's potential better than a single year's data, multiple-year yield summaries are included.

   In order to have a broad base of information, a number of varieties, including experimental lines, are included in the tests, but this does not imply that all are recommended for Georgia.  Varieties best suited to a specific area or for a particular purpose and agreed upon by College of Agriculture scientists are presented on pages 3 and 4 and also in the 1999 Fall Planting Schedule for Georgia (available at your county extension office).  For additional information, contact your local county extension agent or the nearest experiment station.

   The Least Significant Difference (LSD) at the ten percent level has been included in the tables to aid in comparing varieties and tests.  If the yields of any two varieties differ by the LSD value or more, they may be considered different.  Bolding is used in the performance tables to indicate entries with yields statistically equal to the highest yielding entry in the test.  The standard error (Std. Err.) of an entry mean is included at the bottom of each table to provide a general indicator of the level of precision of each variety experiment.  The lower the value for the standard error of the entry mean, the more precise the experiment.

   This report is one of four publications presenting the performance of agronomic crops in Georgia.  For information concerning other crops, refer to one of the following research reports: 1998 Corn Performance Tests (Report 657), 1998 Field Crops Performance Tests (Report 658) and 1998-99 Canola Performance Tests (Report 660).

   This report, along with performance test information on other crops, is also available at our web site www.griffin.peachnet.edu/swvt.  Additional information may be obtained by writing to Mr. J. LaDon Day, Department of Crop and Soil Sciences, Georgia Station, 1109 Experiment Street, Griffin, GA 30223-1797.