Dongdao 4, a new salt and alkali resistant variety, has set a record of super high yield

Dongdao 4, a new rice variety developed by the Northeast Institute of geography and Agroecology, Chinese Academy of Sciences, has been tested by experts organized by Jilin Provincial Agricultural Committee in the field of 17 Mu continuous cropping demonstration area of Taohe farm, Baicheng Jilin Oilfield The yield per mu is 849.37 kg, which is higher than Jijing 8, a super rice variety popularized in large area in Jilin Province 8 ", the highest record in the history of super high yield rice varieties in Jilin Province Recently, the leading group and expert group of the rice variety high-yield competition of Jilin Provincial Agricultural Committee reviewed the results, ranking first among all the rice varieties competing in the 2010 Jilin new rice variety high-yield competition and winning the first prize "Dongdao 4" is a new rice variety selected by Yang Fu, Liang Zhengwei and Wang Zhichun, researchers of Daan alkaline soil ecological experimental station and saline soil ecology and improvement discipline group of Northeast Institute of geography It was approved by Jilin crop variety Approval Committee in January 2010 The growth period of the variety is 130-131 days It is a medium early maturity rice variety in Jilin Province It has the characteristics of fertilizer resistance, lodging resistance, salt tolerance, blast resistance, cold resistance, early growth and rapid development, and live stalk maturity According to the introduction, the saline alkali land in the west of Jilin Province has a large distribution area, low land productivity and poor ecological environment, which needs to be treated urgently The planting results of "dongdao4" show that it is a new super high yield rice variety with good comprehensive characters, especially suitable for planting in the saline alkali land of Baicheng and Songyuan areas in Jilin Province, which has important popularization value and application prospect Its birth is of great practical significance for breaking through the current dilemma of rice variety shortage in the west of Jilin Province, achieving the goal of increasing grain production by 10 billion Jin and ensuring the national food security The achievements of the project have been jointly supported by the major project of knowledge innovation project of CAS, the western action plan of CAS, the major project of national science and technology support and the special project of public welfare industry (Agriculture).