Yuan Longping attends opening ceremony of Hunan Agricultural University

Combination photo taken on Sept. 16, 2019 shows Yuan Longping (1st R), a globally renowned Chinese agricultural scientist known as the "father of hybrid rice," addressing the opening ceremony for newly enrolled undergraduates (top) and students attending the ceremony (bottom) at Hunan Agricultural University in Changsha, central China's Hunan Province. (Xinhua/Chen Sihan)