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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

 

 Variety Perkins Lahoma Chickasha Average
Wichita 2263 1851 2509 2207.7
Sumner 2163 2316 2439 2302.7
DKW 13-86 2091 2293 2265 2216.3
DKW 13-62** 1797 1771 1993 1853.7
DKW 13-54 1706 1437 1802 1648.3
LSD (P=.05)   400.91 297.4 297.1
CV   16.61 12.68 11.13

*Plot size was 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.

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