Jeff McCutcheon and Howard Siegrist, Extension Agriculture and 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.
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This study was designed to compare corn hybrid performance using seven farms in a three-county area. Companies submitted hybrids for evaluation based on area market share. Eight hybrids were included in this evaluation.
Experimental design was a randomized complete block with the seven farms serving as replications. Planting order of the hybrids was randomly selected for each farm site. The eight hybrids were planted side-by-side at each location. No check/tester variety was used. Each of the farms had three replications to provide site-specific information to each farm. The hybrids were planted in six-row field-length strips. Strip length was greater than 750 feet at each site. All hybrids were planted with the individual 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 15% moisture. The longest distance between two fields used in this trial was 39 miles.
| Table 1. Hybrid Performance Across All Farm Locations. | ||||
| Hybrid | Yield (bu/A)1 |
Final Stand (plants/A) |
Test Weight (lb/bu) |
Grain Moisture (%) |
| Pioneer 34B23 | 193.5 a | 23,678 | 58.3 a | 19.5 cd |
| Norvartis N70-D5 | 189.1 ab | 25,940 | 58.1 ab | 20.1 abc |
| Seed Consultants SC 1118 | 187.8 abc | 25,206 | 58.2 a | 20.2 ab |
| Golden Harvest H-9229 | 184.5 bc | 25,633 | 58.2 a | 19.9 bc |
| Agrigold A6490 | 184.3 bc | 25,006 | 58.3 a | 20.1 abc |
| Mycogen 2799IMI2 | 182.6 bc | 23,760 | 56.8 c | 20.6 a |
| Asgrow RX738RR | 180.9 c | 24,653 | 57.7 b | 19.2 d |
| Pioneer 33K81 | 173.6 d | 23,520 | 58.1 ab | 19.9 bc |
| LSD (0.05) | 7.1 | NS | 0.4 | 0.6 |
| F | 5.1 | 1.9 | 10.5 | 4.0 |
| CV (%) | 11.6 | 10.8 | 1.1 | 5.0 |
| Means followed by the same letter are not significantly different at P = 0.05.
1 Adjusted to 15.0% grain moisture. 2 Hybrid suffered wildlife damage at one farm location resulting in appoximately 12% less yield than replicate average. |
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According to this trial, the top yielding varieties, which were not significantly different from each other, were Pioneer 34B23, Norvartis N70-D5, and Seed Consultants SC 1118. The results for Mycogen 2799IMI should be viewed carefully as it may have performed equally well with the highest yielding hybrids had it not been damaged by wildlife at one location. The Pioneer 33K81 yielded significantly less than all other hybrids in the trial.
For more information, contact:
Jeff McCutcheon
Ohio State University Extension, Perry County
104 S. Columbus St., P.O. Box 279
Somerset, OH 43783
740-743-1602
mccutcheon.30@osu.edu