11.   Most corn fields should successfully complete pollination, when kernels form on the ear, analysts say, leaving fall frosts as the remaining threat to a bumper crop.

12.   The weather is a particular threat to corn, which is in the middle of its pollination phase when kernels form on the ear.

13.   Corn is now in its pollination stage during which kernels form.

14.   Corn is now in its pollination stage, a reproductive cycle in which kernels form.