Add to ORKGCorn performance tests, conducted annually by the Kansas Agricultural Experiment Station, provide farmers, extension workers, and seed industry personnel with unbiased agronomic information on many of the corn hybrids marketed in the state. Entry fees from private seed companies finance the tests. Because entry selection and location are voluntary, not all hybrids grown in the state are included in tests, and the same group of hybrids is not grown uniformly at all test locations. Most companies submit seed treated with systemic insecticides, which can affect yield in some situations. Contributors: Main Station, Manhattan: Jane Lingenfelser, Assistant Agronomist (Senior Author); Doug Jardine, Extension Plant Pathologist; Mary Knapp, KSU Weat...