Researchers at the University of Illinois are developing an innovative way for corn to communicate its nitrogen level. Led by graduate student Catherine Li and agronomist Steve Moose, the research team is creating a genetic sensor within the corn plant that indicates nitrogen levels.

This sensor is not mechanical but is a GMO trait that causes the corn kernels to change color. As the corn develops, kernels with higher nitrogen levels turn a darker pink. This could help farmers quickly assess the nitrogen levels in their crops by visually inspecting the corn.

The only drawback is that by the time the kernels develop, it usually is too late to adjust the nitrogen level for the season. However, it does provide a good check on your management program. It would give immediate feedback versus the stalk nitrate test that is typically used.

Read more about GMO corn that reports the nitrogen level here.