Corn productivity

[AMKuska]

So I have started looking into a new corn variety for next year, and I notice different species being divided up by their productivity. What does that mean? Isn't it always/usually one ear per corn?

 

[Smart Red]

I always though that 'productivity' is geared for corn farmers. At one ear per plant, there is a noticeable difference between a ten-inch ear with 13 rows of kernels and one 16-inches with 17 rows.

 

[TheSeedObsesser]

I think that a lot of varieties produce 4+ ears per stalk, but I'm pretty new to corn (just started growing it this year).

By species you must mean dent/pop/sweet corn, etc?

 

[seedcorn]

Productivity? Usually by sweetness gene, maturity, color.
Kernel rows are even rows. Each leaf connection has the potential for an ear. There are genetics that put on a small ear at each node. Usually not a large ear.