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TRIAL DESCRIPTION AND SUMMARY
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The 1995 Uniform Regional Hard Red Spring Wheat Performance
Nursery was planted at 22 locations and harvested at all
locations except Sidney, Montana, in Minnesota, North Dakota,
South Dakota, Montana, Idaho, Wyoming, Wisconsin, Washington and
Canada (Table 1-1). The nursery contained 30 entries, 5 checks and
25 experimentals (Table 1-2). An additional experimental was evaluated at
locations which had not planted before the seed was available.
Trials were conducted as randomized blocks with three replicates.
Yield data obtained from Tetonia and Aberdeen, Idaho, Langdon
and Dickinson, North Dakota were not used in any of the over
location averages . Data from each of 21 locations are given in
Tables 2-1 to 2-21.
The highest average yielding location was Aberdeen, Idaho, with
97 bu/A and the lowest yielding locations were Carrington, North
Dakota, Selby, South Dakota, and Madison, Wisconsin with 34 bu/A.
The average yield of all locations combined was 47 bu/A and seven
experimental lines were in the first LSD unit when 16 locations
were combined (Tables 2-22 and 2-23). Sever scab attacked four
locations in 1995, but these data are combined with the other
locations. Five entries were earliest to head at 26 days after
June 1: SD3161, SD3156, SD3165, SD3151, and BW191. The
experimental with the highest test weight was SD3164. Data for
experimentals and checks grown for two years are given in Table 3-
1. SBE0050 and SD3156 were in the first LSD unit for grain
yield, with MN91309 and ND678 not differing from SD3156. The
highest test weight entries were SD3156, ND678, MN91324, SD3151,
Butte 86 and MN91309 with all above 58 lb/bu.
Stability parameters for entries in 1995 are given in Table 3-2.
High deviations were noted for HY417, MT9354, and SD8088.
Adult plant field reaction to stem and leaf rust are shown in
Tables 4-1 and 4-2. Scab reaction from field inoculation are
given in Table 4-3 from St. Paul. These readings of visual
severity and incidence are confounded by severe lodging. Seed
density as % of kernels sinking in a sugar salt solution are
included with more density being desirable.