Abstract

Moisture data for 12 years from the period 1940 to 1963 were summarized to determine the relation between kernel moisture and time. The rate of kernel moisture reduction was determined for five arbitrary moisture phases and used to predict when specified moisture levels would be attained from pollination date. Correlation studies were made between rate of kernel moisture reduction and four weather factors (air temperature, saturation deficit, wet bulb depression, and relative humidity).The average daily rates of kernel moisture reduction varied considerably from year to year within the five phases of corn growth. Above 30% kernel moisture content the rate of moisture reduction was significantly related to the temperature of the air. Below 30% kernel moisture the reduction rate was significantly related to saturation deficit, wet bulb depression, and relative humidity of the air.A curve, along with a 95% confidence band, was constructed to show the average number of days for corn to go from pollination to a given kernel moisture.

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