Hard Vitreous and Non-Vitreous Kernels

Hard-vitreous kernels are kernels that have a natural translucent colouring which is an externally visible sign of hardness. Kernels that have a starch spot of any size are considered to be non-vitreous kernels.

The following images show kernels that have been cut in half to allow a view of their interiors.

Photographs

Hard vitreous and non-vitreous kernels
Numbers 1-5 show kernels that are considered to be hard vitreous kernels. Number 6 is considered to be a non-vitreous kernel.
Cut kernels with cloudy-coloured interiors.
Images A, B, C, D and E are considered to be hard vitreous kernels. Each cut kernel has a cloudy interior.
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