National Geographic : 1916 May
Photograph by O. F . Cook CUZCO, TIll LARGE-KERNEL CORN OF PERU In the middle farming zone of Peru, at elevations between 8,ooo and II,ooo feet, the Cuzco type of corn is the principal crop. It is characterized by very large kernels, sometimes nearly an inch broad. Cuzco is native to the cool tablelands of Peru rather than the tropical valleys. This fact throws new light on its behavior in the United States. In the hot summer climate of the eastern States it usually fails to set seed, but it may be of use on the Pacific coast or other parts of the United States where there is too little heat for our varieties to mature (natural size).