North Dakota State University * Dickinson Research Extension Center
1089 State Avenue, Dickinson, ND 58601-4642 Voice: (701) 483-2348 FAX:
(701) 483-2005
New Intermediate Wheatgrass Plots
The 1960 yields of hay from the new intermediate wheatgrass trial seeded in 1958 are
given in Table 3. The data of the table shows that the stands have some weeds in them with
South Dakota #20 and A-12496 showing appreciable amounts of weed growth. There has been
little or no deterioration of stands as yet, as evidenced by the general lack of invading
crested wheatgrass. The range in yields of seeded grass was from 1317 pounds per acre for
Amur, to 1999 pounds per acre for Idaho #3. Idaho #3 appeared to have substantially better
production than the other varieties in the 1960 season.
Table 3. Composition of 1960 Yields from Intermediate Wheatgrass Plots Seeded in 1958. | ||||
Composition of Yield | ||||
Variety | Grass | Other Grass | Weeds | Total Plot Production - Lbs/Acre |
Idaho #3 | 1999 | --- | 34 | 2033 |
South Dakota #20 | 1641 | 13 | 209 | 1863 |
Nebraska 50 | 1623 | --- | 17 | 1639 |
N. Dak. Intermediate | 1584 | --- | 45 | 1629 |
A-12496 | 1361 | --- | 199 | 1560 |
Idaho #4 | 1497 | --- | 48 | 1545 |
Ree Wheatgrass | 1491 | 2 | 29 | 1522 |
Greenar | 1451 | --- | 23 | 1474 |
Amur (A-13046) | 1317 | --- | 42 | 1359 |
Average | 1552 | 2 | 72 | 1626 |
The two-year average yields (1959-1960) are given in Table 4. On the basis of the
two-year average yields, Idaho #3 and South Dakota #20 would appear to be somewhat more
productive than the other strains in this trial. Amur appears to be somewhat less
productive than the other strains, and the stands of this variety appear in the field to
be less vigorous than the stands of the other varieties. A-12496 initially showed
relatively poor stands, but the stands of this strain have thickened-up, and the variety
made fairly good growth in the 1960 season. The general vigor and good hay production of
young stands of intermediate wheatgrass is evidenced by the over-all average plot yield of
1384 pounds per acre for the two years of the trial.
Table 4. Average Hay Yields from Intermediate Wheatgrass Plots seeded in 1958. | |||
Oven-dry weight - lbs./acre |
|||
Variety |
1959 | 1960 | 2-Year Average Yield |
Idaho #3 | 1207 | 2033 | 1620 |
South Dakota 20 | 1282 | 1863 | 1572 |
Nebraska 50 | 1151 | 1639 | 1395 |
Ree Wheatgrass | 1269 | 1522 | 1395 |
N. Dak. Intermediate | 1145 | 1629 | 1387 |
Greenar | 1187 | 1474 | 1330 |
Idaho #4 | 1044 | 1545 | 1294 |
Amur (A-13046) | 1142 | 1359 | 1250 |
A-12496 | 860 | 1560 | 1210 |
Average | 1143 | 1626 | 1384 |