China's Yuan Longping dies; rice research helped feed world

In this Oct. 15, 2017 photo, Yuan Longping, center, stands in a field of hybrid rice in Handan in northern China's Hebei Province. Yuan, a scientist who developed higher-yield varieties of rice that helped feed people around the world, died Saturday May 22, 2021, at a hospital in the city of Changsha, Xinhua News agency reported. (Chinatopix via AP)