Of historical interest, here's an early USDA pamphlet on pearl millet: "Pearl millet," by Carleton R. Ball, USDA Farmers' Bulletin No. 168, Washington, Government Printing Office, 1903. (16 pages) https://digital.library.unt.edu/ark:/67531/metadc85560/ The focus is on pearl millet as a fodder crop. Don Osborn, PhD (East Lansing, MI, US) North American Millets Alliance