2004
2003-2004 Canola Yield Studies Dept. of Plant and Soil Sciences
Perkins, Oklahoma:
Site was planted Oct-3-03 at 8 lbs per acre at 7.5 row spacing with a Great Plains no-till drill. Seed was plant from the small seed box attachment. Site was fertilized for a yield goal of 2500 lbs. Study was harvested on Jun-2-04 with a Wintersteiger Classic 2000 plot combine. At harvest seed moisture levels ranged from 6.7 to 9.8%. Additional information for all studies can be found in the Small Grains Weed Control annual report.
Lahoma, Oklahoma :
Site was planted Sept-25-03 at 8 lbs per acre at 7.5 row spacing with a Great Plains no-till drill. Seed was plant from the small seed box attachment. Site was fertilized for a yield goal of 2500 lbs. Study was harvested on Jun-6-04 with a Wintersteiger Classic 2000 plot combine. At harvest seed moisture levels ranged from 9.8 to 14.3%. Seed was dried to 8 to 11%.
Chickasha, Oklahoma :
Site was planted Oct-1-03 at 8 lbs per acre at 7.5 row spacing with a Great Plains no-till drill. Seed was plant from the small seed box attachment. Site was fertilized for a yield goal of 2500 lbs. Study was harvested on Jun-3-04 with a Wintersteiger Classic 2000 plot combine. At harvest seed moisture levels ranged from 9.38 to 15.12%.
|
Table 1. 2003-2004 Central Oklahoma Winter Canola
*Yields in lbs per acre - Adjusted to 10% moisture |
||||
|---|---|---|---|---|
| Variety | Perkins, OK | Lahoma, OK | Chickasha, OK | Average |
|
|
||||
| Wichita | 2263 | 1851 |
2509
|
2207.7
|
| Sumner | 2163 | 2316 | 2429 | 2302.7 |
| DKW13-86 | 2091 | 2293 | 2265 | 2216.3 |
| DKW13-62** | 1797 | 1771 | 1993 | 1853.7 |
| DKW13-54 | 1706 | 1437 | 1802 | 1648.3 |
|
|
||||
|
LSD ( P=.05)
|
400.91
|
297.4
|
297.1
|
|---|---|---|---|
|
CV
|
16.61
|
12.68
|
11.13
|
* Plot size was eight by thirty feet with six replications.
** Seed of DKW13-62 had poor vigor and only 70% germination, but no other seed was available for planting in the fall of 2003.
