1964 began to study hybrid rice.

1966, Miracle Rice (IR8) was bred by IRRI Philippine International Rice Research Institute, and the hybrid rice in Yuan Longping was studied.

1974 bred the first hybrid rice combination Nanyou 2.

1975 hybrid rice seed production technology was successfully developed, which laid the foundation for large-scale popularization of hybrid rice.

1985 put forward the strategic idea of hybrid rice breeding, and pointed out the direction for the further development of hybrid rice.

1986, Yuan Longping put forward the hybrid rice breeding strategy, which divided the hybrid rice breeding method into three strategic development stages: three-line method, two-line method and one-line method, that is, the breeding program developed from complex to simple and efficient.

1On July 6th, 987, Yuan Longping students Li Bihu and Deng Huafeng discovered a photosensitive sterile rice in the three-line indica rice breeding materials of Anjiang Agricultural School. After two years and three generations of propagation and observation in different places, the agronomic characters of this material are neat and consistent, the sterile plant rate and sterility degree reach 100%, and the fertility transformation is obvious and synchronous.

This new achievement has opened up a new situation for the transition of hybrid rice from "three-line method" to "two-line method" In the same year, he put forward the "development strategy of hybrid rice", that is, using heterosis among plants on the basis of three-line method; Utilization of heterosis between indica and japonica subspecies based on two-line method: utilization of distant heterosis based on one-line method.

In the same year, the national "863" plan took the research of two-line hybrid rice as a special topic, and Yuan Longping established a two-line hybrid rice research collaboration group to carry out Chinese-style collaborative research. After 9 years' hard research, the 1995 two-line hybrid rice was successful, which increased the yield by 5% ~ 10% compared with the three-line hybrid rice at the same maturity stage, and the rice quality was generally good.

In recent years, the planting area is about 6000 mu. Two-line hybrid rice is original in China, and its success is a major breakthrough in crop breeding, which once again embodies the wisdom of China hybrid rice scientists headed by Yuan Longping and continues to keep the research level of hybrid rice in China at the world leading level.

1997, Yuan Longping put forward the morphological model and breeding technical route of super-high yield hybrid rice to improve photosynthesis efficiency, and began the research of "China super hybrid rice". This is a world-class problem. Through tackling key problems, in 2000, the goal of 700 kilograms per mu was achieved in the first phase of large-scale demonstration.

Compared with the existing high-yield hybrid rice, the yield per mu is about 50 kg, especially in Yongsheng 1999, Yunnan Province, which also created a new high-yield record of 1 137.5 kg. The promotion area of the first batch of super hybrid rice is 30 million mu.

Since 200 1, Yuan Longping has guided the breeding of the second generation super hybrid rice with an yield of 800 kg per mu and excellent rice quality, and achieved the goal of the second generation super rice one year ahead of schedule in 2004. Popularize the second generation super hybrid rice in 2006.

The planting area of 20 1 1 year reaches 8 million mu, which is more than 50 kg/mu more than the first large-scale production of super rice. Not satisfied, Yuan Longping further put forward the goal of combining conventional breeding with biotechnology, and demonstrated and tackled key problems in a large area in the third phase of super hybrid rice, with an yield of 900 kilograms per mu. Through hard work, the demonstration of super hybrid rice in the third phase, 20 1 1 2 and 20 12, reached 926.6 kg and 9 17.7 kg respectively, marking the realization of the third phase of super hybrid rice in China.

In 20 13, the fourth phase of the target study of super hybrid rice yield per mu 1000 kg was started. On September 29th, the fourth demonstration film "Y Liangyou 900" of super rice reached an average yield of 988. 1 kg in Niuxing Village, Yanggu 'ao Township, Longhui County, Hunan Province, setting a world record.

In 2006, Yuan Longping put forward the high-yield project of "planting three crops and producing four crops", that is, using the technical achievements of super hybrid rice, striving to produce four acres of grain from three acres of land.

In 2007, it was first implemented in 20 counties in Hunan, and achieved very good results. It is planned to spread 60 million mu of grain throughout the country and produce 80 million mu of grain, which is equivalent to increasing 20 million mu of grain arable land and can feed more than 30 million people.

By 20 12, the high-yield project of "planting three crops and producing four crops" has been extended to 50 counties and cities, covering an area of 8.822 million mu, increasing rice production by 962 million kilograms. By the end of 20 12, the accumulated demonstration and promotion area was more than 20 million mu, with an increase of more than 2 billion kilograms, which made new contributions to the sustained and stable increase of grain production.

On September 29th, 20 13, it was confirmed by the National Hybrid Rice Engineering and Technology Research Center that the average yield of rice in the fourth national demonstration film "Y Liangyou 900", which was tackled by the scientific research team of Academician Yuan Longping, the father of hybrid rice, reached 988.6438+0kg, setting a world record.

2016165438+1October 19 Yuan Longping, academician of China Academy of Engineering, Luo, academician of China Academy of Engineering, yield measurement and acceptance experts and related technical experts came to Xingning to conduct yield measurement and acceptance of key projects of the green and high-efficiency model with a yield of 3,000 kg per mu of double-cropping rice in South China. The average yield per mu of late rice measured in the field is 705.68 kg (dry valley).

Introduction to Yuan Longping:

Yuan Longping (1September 7, 930 -202 1 May 22, 1930), male, Han nationality, without party affiliation,1was born in Beijing on September 7, 930. He is a native of De 'an County, Jiujiang City, Jiangxi Province, an expert in hybrid rice breeding in China, and a pioneer in hybrid rice research and development in China. He is known as "the father of hybrid rice in the world".