Kansas Agricultural Experiment Station

W. W. TRACY: Experiments in Crossing Corn, Tomatoes, and Carrots. Eighteenth An. Rep. State Horticultural Society of Mich., 1888, p. 43.

In 1881, Cuzco corn, a soft variety, from Brazil, was fertilized with pollen from Black Mexican. As a result there were “obtained two quite good ears, many of the grains being black and wrinkled like sweet corn, others being white but wrinkled, still others being white and smooth like the variety. In 1882 the white wrinkled grains were planted where there was little chance of mixture. The tassels were carefully removed as they appeared, and in due season the silk was fertilized with Early Minnesota pollen, The result was quite a lot of ears, some showing all sweet grains, some nearly all of the Cuzco type; but I think none of them black, although some of them showed considerable red. The best ear was selected and the sweet grains planted in 1883 and the silk again fertilized with Early Minnesota. This season there was considerable black corn, there being much more color than in 1882. The best two ears were selected and planted and left to fertilize themselves. There was much less color shown this season than any year previous. In 1885 the best were planted, and no color appeared. In 1887 the best ears were planted, and no color showed. In 1888 the best two were planted, and this season a good many grains were as black as the Mexican, and some ears are as much marked with red or black as is the ordinary red blazed. I could not find that there was any red or black within a mile."

Black Mexican Biblio

Cuzco Corn Biblio