6. Fine mottling may completely inhibit color. On an ear segregating for coarse and fine mottling (Maize Coop. 1939 letter) there were six colorless seeds. These produced 5 plants in 1939. One was a contamination, a self-pollination. The other four were segregating for color. In the case of these four seeds the fine mottling factor completely inhibited color production.

W. R. Singleton