China began to breed broad adaptable super hybrid rice

Four-and-a-half-a-half-a-mu demonstration tracts will be built in two to three sets of high-production standardization and practical technology systems

In order to continue to maintain the international leading position in the field of hybrid rice research in China, the National Science and Technology Support Program led by Academician Yuan Longping, “Selection and Demonstration of New Super Hybrid Rice Combinations and Models” was recently launched in Changsha, Hunan Province. Yuan Longping hopes that the researchers of the task force will work together to successfully accomplish the task within the prescribed time and make greater contributions to food security. The Chinese Academy of Engineering academician Zhu Ying participated in the launch ceremony.

In recent years, significant progress has been made in the research and application of super hybrid rice in China. However, most of the super hybrid rice combinations cultivated and promoted are mid-season rice combinations. The combination of early rice and late rice is significantly less, and the maturation period cannot meet diversified demands; Most super hybrid rice combinations perform super-high yield under high-fertilizer cultivation conditions, and vice versa, and the ecological adaptability of some of the major super-hybrid rice varieties to be promoted needs to be improved.

According to the spirit of consultation between the Ministry of Science and Technology and the Hunan Provincial Government, Hunan Science and Technology Department meticulously organized the National Hybrid Rice Engineering Technology Research Center, Hunan Agricultural University, the Institute of Subtropical Agriculture, Chinese Academy of Sciences, Wuhan University, Sichuan Academy of Agricultural Sciences, and Fujian Agricultural College The superior institutions such as the hospital declared the project of “selection and demonstration of the new combination of super hybrid rice with wide adaptability” and obtained project support for the National Science and Technology Support Plan.

The "broad adaptability" of super hybrid rice means that it has good adaptability to different soils, ecological climate conditions and farming systems, and the ability to withstand exceptional (resistant) anomalous climatic conditions is not inferior to that of the control species in the regional test. The special program will focus on this feature and plan to develop 4 to 6 super-hybrid rice stem parents in 4 years, cultivating 8 to 10 new combinations of super-hybrid early, middle and late rice in the Yangtze River basin; Establish 200,000 mu of high-yielding super hybrid rice seed production bases and 2,000 mu of sterile breeding bases in the basin and southern China, and compile the technical specifications of the seed production system; establish 25 super-hybrid 100 mu demonstration plots of early, middle and late rice to form a super Two to three sets of standardized high-yield, standardized and practical technology systems for hybrid rice “three-four-produce” provide scientific and technological support for further increasing the yield of rice in China. (Author: Hu Yufen industry Yun Xin Yi Zhiyong)