Chad Lee, Extension Agronomist, University of Kentucky
Much of the corn in the state is going through pollination right as daytime temperatures are the highest for the season. Fortunately, most pollen drop occurs earlier in the morning and some occurs later in the evening. Soon after pollen comes into contact with silks, it begins pollen tube growth in those silks. As long as morning temperatures stay in the low 70's, pollination should occur without much trouble. Last year, morning temperatures were in excess of 90 degrees, relative humidity was low, the soils were extremely dry and the corn was under severe drought stress. This year, humidity is accompanying the hotter temperatures. The higher humidity will help the viability of the pollen grains.
|Corn pollen drop is |
occurring in many fields.