which grain is said to be the staple food of more than one-third of the world's population
Staple food Just 15 crop plants provide 90 percent of the world's food energy intake (exclusive of meat), with rice, maize, and wheat comprising two-thirds of human food consumption. The three are the staples of about 80 percent of the world population,[8] and rice feeds almost half of humanity.
Potato In 2014, world production of potatoes was 382 million tonnes, an increase of 4% over 2013 amounts and led by China with 25% of the world total (table). Other major producers were India, Russia, Ukraine and the United States. However, the local importance of potato is variable and rapidly changing. It remains an essential crop in Europe (especially eastern and central Europe), where per capita production is still the highest in the world, but the most rapid expansion over the past few decades has occurred in southern and eastern Asia.[3][13]