Sweet corn is the most important canning crop grown in Iowa. The average annual pack in this state for the past five years is approximately 2,500,000 cases. High grade seed, both as to canning quality and vitality, is of primary importance to the canning industry. Due perhaps to its sugary character, sweet corn is more difficult to cure than field corn. Also, it is a plant of less vigor and more subject to diseases. Greater care is therefore required in curing and handling the seed.

This study was undertaken to secure information regarding:

1. Methods of hastening the curing of sweet corn seed in the field by topping the plants, by opening the husks and by curing in the shock.

2. The kiln drying of sweet corn seed.

3. The influence of immature seed.

4. Relation of vigor of germination to yield.