SHANGHAI/BEIJING, May 22 (Reuters) - Chinese agronomist Yuan Longping, who was known for developing the first hybrid rice strains, died at age 91 in the central province of Hunan on Saturday, the official Xinhua News Agency said.

Yuan, born in September 1930, helped China with the hybrid rice to feed nearly one-fifth of the world's population with less than 9% of the world's land, Xinhua said in a story in 2019.

(Reporting by Zhang Yan in Shanghai, Yilei Sun and Ryan Woo in Beijing)