A New vegetable Variety "selenium Ziyuan No. 1" with High efficiency of selenium in China
Xinhua News Agency, Wuhan, 22 Nov (Reporter Hou Wenkun and Dong Jun) the Chinese Academy of Agricultural Sciences announced on the 22nd that the scientific research team led by Wang Hanzhong, academician of the Chinese Academy of Engineering and vice president of the Chinese Academy of Agricultural Sciences, The first "selenium efficient" vegetable in the world, a new hybrid rape bolting variety "selenium Ziyuan 1", was bred.
At the on-the-spot observation meeting of "selenium efficient" rape varieties held in Wuhan on the 22nd, Wang Hanzhong said that selenium is an important element in maintaining human health. Selenium-rich vegetables and selenium-rich grains are safe and effective ways for human body to ingest selenium. At present, there are two sources of selenium-rich vegetables and selenium-rich grains in the world: the use of soil in selenium-rich areas, or the artificial application of exogenous selenium in the process of planting. However, selenium-rich land accounts for only about 3.5% of cultivated land in China, and the application of exogenous selenium may have a negative impact on the environment.
How to produce selenium-rich vegetables in non-selenium-rich soil without exogenous selenium? By comparing the total nutritional quality of more than 100 rape bolts with 9 common vegetables, researchers found that rape bolts had a special function of enriching selenium, and its selenium content was significantly higher than that of other vegetables.
Relying on excellent germplasm resources, the scientific research team successfully bred "selenium Ziyuan 1" by using modern breeding methods, such as polymeric hybridization, microspore cultivation, molecular marker assisted selection and so on. This variety has strong selenium enrichment ability, and the selenium content of rape bolts planted in many non-selenium-rich soils in China is between 0.01-0.07mg/kg, and has the characteristics of high calcium, high vitamin C, high amino acid and high zinc. "selenium Ziyuan 1" can be picked 2 months after sowing, 3-4 stubble can be picked at one time, and the yield per mu can reach 600-800 kg.
Fu Tingdong, Fang Zhiyuan and Wan Jianmin, academicians of the Chinese Academy of Engineering, believe that "selenium Ziyuan 1" has brought the selenium-rich vegetable market into a new era, which can meet the needs of people in the pursuit of high-end quality of life. It is also helpful to improve the social and economic benefits of the whole industry chain of rape.