TRIAL DESCRIPTION AND SUMMARY
 
 The 1984 Uniform Regional Hard Red Spring Wheat Performance Nursery (URHRSWPN) was 
 planted at 21 locations and harvested at 20 in Minnesota, North Dakota, South Dakota, 
 Montana, Idaho, Wyoming, Wisconsin, Washington, Nebraska, and Canada (Table 1). The 
 nursery contained 32 entries, 5 checks (4 tall and 1 semidwarf), 1 hybrid (RH833498), and 
 26 experimentals (4 talls and 22 semidwarfs). Yield data obtained from Brookings and 
 Sheridan were not used in the overall average. Data from 20 stations are given in Tables 
 2-1 to 2-21. WA7182 was not grown at Pullman and its mean yield and test weight are not 
 given in Table 2-22 nor in Tables 3-1 and 3-2.
 
 For entries grown at the stations the highest average yield was 85 bu/A at Winnipeg, 
 Canada while the lowest average yield was 20.3 bu/A at Williston, North Dakota.
 
 Entry SD8026 headed 28 days after June 1 while Marquis and Era headed 4 days after July 
 1. The average yield and bushel weight data of all entries for 1984, 1983-84, and 1982-84 
 are shown in Table 3-1. Twenty two wheats exceeded Era in 1984 and 12 exceeded Butte, the 
 highest yielding check. MN7529 and ND603 were the highest yielding entries in 1983-84 
 while MN7529 was the highest yielding entry in 1982-84. Four entries exceeded 60 lb/bu in 
 1984, SD8036, Butte, MN80056, and 2369. The highest test weight line in 1983-84 and 
 1982-84 was Butte.
 
 Stability parameters for entries in 1984 and percent of times the line appeared in the 
 top five entries at each location are given in Table 3-2. Two lines with large deviations 
 from regression were MT8043 and SD8026. MN7529 appeared in the top 5 44% of the time, 
 while four lines, RH833498, ND603, MN82128, and SD8026, appeared in the top 5 33% of the 
 time. Seedling reaction to stem rust and adult field reactions to stem and leaf rust are 
 shown in Tables 4-1, 4-2, and 4-3, respectively. Tan spot reactions are given in Table 
 4-4.