Oilseed and confectionary entries were planted separately in all tests except Greeley County. Entries were planted in four-row, replicated plots at all locations. To ensure uniform and adequate stands, all tests were planted at a high seeding rate and hand thinned after emergence to desired stands. E nvironmental factors affecting test results and cultural practices are discussed individually for each of the test sites. Entrants and entries in 1997 tests are listed at the end of the report.
L odging percent is based on counts of lodged and total plants in harvested area at all locations.
Samples for all tests were derived by compositing replications by entry for each location and subsampling. S tatistical analysis Conducting perfect tests is virtually impossible, because soil fertility, moisture, and other environmen-tal factors vary. Therefore, small differences in results may have no real meaning. To help interpret data, we applied a statistical technique, analysis of variance, wherever possible. Such analysis requires repeating whole sets of varieties or treatments several times and placing individual varieties or treatments as they would be placed by chance alone.