Is isolation at planting required for differen varien pollinated corn

Asked April 5, 2014, 8:05 PM EDT

Is isolation at planting required for differen varien pollinated corn

Aiken County South Carolina

1 Response

Corn is a cross (open) pollinated crop and therefore will cross with other corn plants. The overwhelming majority of field corn and sweet corn is produced by hybrids. Isolation is only required to produce true hybrid seed(seed that growers will plant for grain, silage, and food ). When these hybrids are grown by the grower, they will cross pollinate between themselves or other nearby hybrids without any problems. However, in the case of some sweet corn hybrids, isolation is required for some types(by the growers) in order to maintain the proper sugar content (sweetness). If a grower plants an open-pollinated heirloom type of variety, then care should be taken to prevent other types from crossing with the plants to maintain the integrity of the variety and the purpose of use.