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Ag Research

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 pounds per acre adjusted to 10% moisture

VarietyPerkinsLahomaChickashaAverage
Wichita2263185125092207.7
Sumner2163231624392302.7
DKW 13-862091229322652216.3
DKW 13-62**1797177119931853.7
DKW 13-541706143718021648.3
LSD (P=.05)400.91297.4297.1
CV16.6112.6811.13

*Plot size was 8 x 30 feet with six replications
**Seed of DKW 13-62 had poor vigor and only 70% germination, but no other seed was available for planting in the fall of 2003.