Jeff McCutcheon and Howard Siegrist, Extension, Agriculture/Natural Resources, Agents Phil Rzewnicki, On Farm Research Coordinator
To provide a source of objective information on the relative performance of corn hybrids currently available to farmers in the three-county area.
This study was designed to compare corn hybrid performance using three farms as replications in the three-county area. Companies submitted hybrids for evaluation based on area market share. Only six hybrids are included in this evaluation.
Planting order was randomly selected for each farm. The six hybrids were planted side by side at each location. No check/tester hybrid was used. The hybrids were planted in six-row, field-length strips. All hybrids were planted with the cooperator's planter. Fertilizer, herbicides, and insecticides were applied according to the cooperator's crop-management plan and within recommended cultural practices for obtaining optimum grain yields.
Harvest was done with the cooperator's combine. Final stand count, plot area, total weight, percent moisture, and test-weight measurements were taken. Yield was adjusted to a moisture content of 15% moisture. The longest distance between two fields used in this trial was 18 miles.
| Cooperator: | Jim and Dave Miller | Cooperator: | Mike Thomas |
| Nearest Town: | Millersport | Nearest Town: | Thurston |
| Major Soil Type: | Marengo silty clay loam and Cardington silt loam | Major Soil Type: | Bennington and Centerburg |
| Planting Population: | 30,000 seeds/A | Planting Population: | 29,000 seeds/A |
| Harvest Population: | 27,583 plants/A (avg.) | Plant Pop at Harvest: | 26,646 plants/A (avg.) |
| Previous Crop: | Soybeans | Previous Crop: | Soybeans |
| Planting Date: | April 30, 2001 | Planting Date: | April 28, 2001 |
| Harvest Date: | October 22, 2001 | Harvest Date: | October 17, 2001 |
| Yield: | 174 bu/A (avg.) | Plot Yield: | 169 bu/A |
| Moisture: | 19% (avg.) | Moisture: | 16% (avg.) |
| Row Width: | 30 inches | Row Width: | 30 inches |
| Plot Length: | 650 feet (avg.) | Plot length: | 1,000 feet (avg.) |
| Cooperator: | Slater Farms | ||
| Nearest Town: | Hebron | ||
| Major Soil Type: | Westland silty clay loam and Bennington silt loam | ||
| Planting Population: | 31,500 seeds/A | ||
| Plant Pop at Harvest: | 27,146 plants/A (avg.) | ||
| Previous Crop: | Soybeans | ||
| Planting Date: | May 1, 2001 | ||
| Harvest Date: | October 18, 2001 | ||
| Yield: | 207 bu/A | ||
| Moisture: | 21% (avg.) | ||
| Row Width: | 30 inches | ||
| Plot length: | 1,250 feet (avg.) | ||
| Table 1: Hybrid Performance Across All Farm Locations.1 | |||||
| Company | Hybrid | Yield @ 15% moisture | Final stand | Test weight | Harvest moisture |
| (bu/A) | (plants/A) | (lb/bu) | (%) | ||
| Pioneer | 34M94 | 188.3 a | 27,500 | 57.3 b | 18.6 b |
| Seed Consultants | SC 1140 | 188.1 a | 26,542 | 57.3 b | 20.2 c |
| Norvartis | N70-D5 | 184.5 a | 26,958 | 57.8 a | 19.1 b |
| DeKalb | DK6303 | 183.6 ab | 27,542 | 56.1 c | 19.4 b |
| Golden Harvest | H-9229 | 177.7 b | 26,958 | 58.1 a | 19.0 b |
| Mycogen | 2625 | 176.9 b | 27,250 | 56.5 | 16.9 a |
| LSD (0.05) | 6.7 | NS | 0.58 | 0.76 | |
| F | 4.3 | <1 | 13.9 | 16.7 | |
| CV (%) | 4.5 | 10.8 | 1.2 | 5.0 | |
| 1 Means in the same column followed by the same letter are not significantly different from each other. | |||||
The number of cooperators was reduced this year due to rainy weather in May. One plot that was planted but not reported suffered extensive wildlife damage, rendering the data unusable.
According to this trial, the top yielding varieties, which were not significantly different from each other, were Pioneer 34M94, Seed Consultants SC 1140, Norvartis N70-D5, and DeKalb DK6303.
For additional information, contact:
Jeff McCutcheon
Ohio State University Extension, Knox County
1025 Harcourt Rd., P.O. Box 1268
Mount Vernon, OH 43050
740-397-0401
mccutcheon.30@osu.edu