Rice industry leaders gather in Tianjin to focus on the development of japonica hybrid rice industry.

 

领导发言篇

 

Director Liu Chi of the Major Special Office of the Ministry of Science and Technology put forward feasible and constructive suggestions on how to develop hybrid japonica rice from the point of view of management, and pointed out that at present, hybrid japonica rice has not yet been specifically included in the category of major national science and technology special projects. It is willing to promote the rapid development of hybrid japonica rice industry through major special projects and other bridges. Liu Jianjun, director of the Innovation system Construction and Management Office of the Tianjin Science and Technology Commission, pointed out that under the premise of the Beijing-Tianjin-Hebei collaborative innovation community, innovation should be carried out around the major needs and problems of national japonica rice, especially hybrid japonica rice. we will increase support for japonica rice, especially hybrid japonica rice, and do a good job in serving the development of China's japonica rice industry. Zhao Xianjian, deputy director of the Planning Finance Department of the Tianjin Municipal Committee of Agriculture, pointed out that in the future, the Municipal Committee of Agriculture should increase investment in the development of hybrid japonica rice and make due contributions to the development of the national japonica rice industry. Zhang Xiaodong, deputy director of the Science and Education Department of the Tianjin Municipal Commission of Agriculture, pointed out that in the future, the development of japonica hybrid rice will be supported by the discount policy and the introduction of talents.

At the meeting, Deputy Director Toray of the National Japonica Rice Center and key Laboratory and Deputy Director Cai Zhuo of the Exchange Office of the Industry Alliance reported on the work progress in recent years respectively. Professor Hua Zetian, director of the center and key laboratory, made an important supplement to the operating mechanism and key research direction in the future. Experts conducted academic exchanges according to the current situation of the development of japonica rice in different rice regions, and put forward suggestions and opinions to promote the technological progress of hybrid japonica rice industry in the next step.

Progress of work

 

The center and laboratory focus on the breeding of strong high quality combinations and seed production, which are two key factors in the industrial development of hybrid japonica rice. from molecular marker-assisted selection breeding, identification and application of heterosis groups of japonica rice, utilization of heterosis of multiple genotypes of japonica rice, and breeding of red lotus type cytoplasmic male sterile lines, a series of achievements were made: (1) to explore a number of special new resources of japonica rice, including resources with good quality and herbicide sensitivity. Resource materials with high nutritional value and low glycemic index; (2) creating a batch of hybrid japonica rice parent materials with good characters, of which 8 have been identified by Tianjin seed Management Station; (3) several japonica rice varieties have been selected and approved. At present, the center has more than 20 rice varieties of "Longyou" and "Longjing" series; (4) 90 invention patents have been applied and 10 have been authorized. Applied for 23 new plant varieties protection; won 14 national and provincial awards; (5) trained 14 postdoctoral and 18 doctoral and postgraduate students.

Kui Limei, a researcher at the Yunnan Academy of Agricultural Sciences, pointed out that the poor adaptability of hybrid japonica rice varieties restricts their development and popularization, which can be solved in terms of light and temperature insensitivity of varieties. F2 heterosis can be used to solve the problem. Third, in cultivation technology, the amount of nitrogen fertilizer application is not positively related to the yield of hybrid japonica rice, so the amount of fertilizer application should be properly controlled. Cao Liming, a researcher at the Shanghai Academy of Agricultural Sciences, pointed out that in recent years, Shanghai has continuously expanded the planting area of hybrid japonica rice by promoting the construction of local industrial system, and the planting area will reach 500000 mu by 2015, accounting for about 35 percent of the total rice planting area. it is estimated that the proportion of hybrid japonica rice will reach 50% during the 13th five-year Plan period. In addition, the extension area of hybrid japonica rice in Shanghai was further increased by cultivating varieties with high quality, high yield, wide adaptability and suitable for mechanized production. Song Shizhi, a researcher at the Academy of Agricultural Sciences in Xinyang City, Henan Province, pointed out that in addition to breeding strong dominant varieties, the development of hybrid japonica rice should pay attention to cultivation methods and control the amount of nitrogen fertilizer. In addition, support at the national level should be increased. Lin Zhiqing, a researcher at the Xinjiang Academy of Agricultural Sciences, pointed out that there are three reasons for hindering the promotion of hybrid japonica rice. the first is that the advantage of increasing yield is not obvious, the second is that the selection of male parents affects the quality of hybrid japonica rice, and the third is that the affinity and cold and high temperature tolerance of parents affect seed production. Wang Cailin, a researcher at Jiangsu Academy of Agricultural Sciences, pointed out that the development of hybrid japonica rice in Jiangsu is also affected by quality and yield; in addition, the stigma exposure rate is the main factor affecting seed production. Wang Dezheng, a researcher at Anhui Academy of Agricultural Sciences, pointed out that the universality of hybrid japonica rice urgently needs to be improved, especially the resistance to rice blast and false smut; in addition, the cultivation of hybrid japonica rice varieties with strong lodging resistance and suitable for mechanized production is of great significance to the development of hybrid japonica rice. Researcher Li Shaoqing of Wuhan University pointed out that the development of hybrid japonica rice should not only improve its yield, quality, and resistance, but also pay more attention to the research on high added value; in addition, the blast of hybrid japonica rice is serious, and its resistance can be improved by introducing resistant resources. it is beneficial to the popularization of hybrid japonica rice.

 

Writing department: scientific research department