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Uniform Bromegrass Trial

The hay yields for the 1960 season of the 14 strains of smooth bromegrass included in the uniform bromegrass trial are give in Table 5. The 6-year average yields for all strains in the trial are given in Table 6. These plots were seeded in 1953, and some of the plots show considerable deterioration of stand, although invasion of other grass and weeds has been very light so far. The plots of Canadian commercial, Manchar, Martin, Kuhl, and Mandan 404, were noticeably less vigorous and thinner in the 1960 season than in previous seasons.

Table 5. Composition of 1960 Hay Yields from Bromegrass Plots seeded in 1953.
Composition of Yield
Variety Grass Other Grass Weeds Total Plot Production - Lbs./Acre
Achenback 1247 --- --- 1247
Oklahoma Synthetic 1131 2 2 1135
Lincoln 1103 9 3 1115
Fischer 1093 13 5 1111
Lancaster 1086 3 6 1095
Kuhl 1059 25 4 1088
Bin 12 1065 3 3 1071
Manchar 997 57 3 1057
Lyon 1042 --- --- 1042
Elsberry 995 12 3 1010
Homesteader 996 --- 4 1000
Mandan 404 988 --- 3 991
Canadian Com. 988 --- 2 990
Martin 971 11 4 986
Average 1054 10 3 1067

The average production of seeded grass for all brome varieties was 1054 pounds per acre this year. Achenbach, a southern type, was top producer at 1247 pounds per acre. Oklahoma synthetic at 1131, Lincoln at 1103, and Fischer at 1093 were next in order. Martin, at 971 pounds per acre, was the lowest producer of this group. Martin is an old-field strain from Minnesota and is considered to have southern-type characteristics. In general the southern bromes continued to show somewhat greater productivity than the northern types. However, differences between the types were not pronounced this year and Elsberry (Missouri) and Martin (Minn.) joined the northern types at the bottom of the list.

The data of Table 6 shows that on the average Lincoln brome has had a slight over-all advantage in productivity, followed closely by Fischer, Achenbach, and Oklahoma synthetic. Of the northern type bromes Manchar, Mandan 404, and Homesteader all have about the same average yield, with the range being only from 1124 pounds per acre for Homesteader to 1130 pounds per acre for Manchar. Canadian commercial, with a 6-year average yield of 1030 pounds per acre, appears to be slightly less productive than the other northern strains.

Table 6. Hay Yields from Uniform Bromegrass Trial seeded in 1953.
Oven-dry weight - Lbs./Acre
Variety 1954 1955 1956 1957 1958 1959 1960 6-Yr.-
Av. Yield
Lincoln 1606 1498 --- 1459 1260 906 1115 1307
Fischer 1637 1414 --- 1408 1239 849 1111 1276
Achenbach 1702 1463 --- 1318 1159 734 1247 1271
Oklahoma Syn. 1363 1426 --- 1614 1190 789 1135 1253
Elsberry 1190 1548 --- 1537 1184 952 1010 1237
Bin 12 1289 1326 --- 1380 1206 1007 1071 1213
Lancaster 1275 1476 --- 1397 1142 864 1095 1208
Lyon 1380 1511 --- 1417 1140 707 1042 1200
Kuhl 1334 1352 --- 1486 1107 704 1088 1179
Martin 1247 1335 --- 1160 1179 951 986 1143
Manchar 1241 1478 --- 1132 1126 746 1057 1130
Mandan 404 1261 1359 --- 1226 1069 865 991 1129
Homesteader 1214 1433 --- 1319 1099 677 1000 1124
Canad. Com. 1122 1287 --- 1095 920 774 990 1030
Average 1347 1421 --- 1353 1144 823 1067 1193

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