Diagnosing Chilling and Flooding Injury to Corn Prior to Emergence

Farmers often plant corn very early to increase yield potential and to avoid weather delays late in the season. This early planting offers potential advantages, but it also carries significant risks related to cold injury and pests. During this time, the seed and emerging seedling are highly vulnerable to damage from insects, diseases, herbicide exposure and adverse field conditions such as crusting or ponding. This article discusses the effects of stresses at planting, particularly cold soils and water on germination and emergence of corn. Included are diagnostic descriptions and images of plant injury symptoms caused by chilling and flooding.

To view the full text of this article, register on the Pioneer GrowingPoint® website and search for the title shown above.