Yuan Longping (1September 7, 930 -202 1 May 22, 2000), male, Han nationality, Beijinger, non-partisan in Dean County, Jiujiang City, Jiangxi Province. Famous agricultural scientist at home and abroad, pioneer and leader of hybrid rice in China, close friend of China's * * * production party, outstanding representative of personages without party affiliation, winner of * * * and national medal, former vice chairman of Hunan Provincial Political Consultative Conference, former director of National Hybrid Rice Engineering Technology Research Center and academician of China Academy of Engineering, he is known as "the father of hybrid rice".
Rice is a cereal crop of Oryza, and its representative species is rice (scientific name: Oryza sativa? L.) Rice is native to China and India. The ancestors of the Yangtze River valley in China planted rice 7,000 years ago.
Rice is divided into indica rice and japonica rice according to botanical classification; According to the growth period, it is divided into early rice, middle rice and late rice. Divided into glutinous rice and non-glutinous rice according to starch content; Divided into conventional rice and hybrid rice according to the way of seed retention; According to the cultivation methods, it is divided into rice and upland rice. The fruit of rice is rice, which is called brown rice after hulling. Rice can be obtained by grinding brown rice to remove the rice bran layer. Nearly half of the world's population lives on rice. In addition to being edible, rice can also be used as industrial raw materials for wine making and sugar making, and rice husk and straw can be used as livestock feed. The main rice producing areas in China are Yangtze River Basin, Pearl River Basin and Northeast China. Rice is a direct cash crop and a staple food for China residents. At present, the planting area of conventional rice in China is 245 million mu, and that of hybrid rice is 200 million mu.