![](http://www.ecns.cn/hd/2024/04/03/2c64b575bcc7402a881caf604cc74a8a.jpg)
A staff member shows a can of seeds preserved at minus 4 degrees Celsius in the national germplasm resources back-up banks in Xining, northwest China's Qinghai Province, April 2, 2024. (Photo: China News Service/Ma Mingyan)
A total of 459,228 germplasm resources of 220 crop species, including grain, cotton, oil, fruit, vegetables, tea, sugar and grass are preserved at the back-up bank as of April 2024. The bank has been operating safely for 50 year.
![](http://www.ecns.cn/hd/2024/04/03/0e7f5acc1cb64749829c55ce488716fc.jpg)
An interior view of the national germplasm resources back-up banks in Xining, northwest China's Qinghai Province, April 2, 2024. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2024/04/03/38023998b25342bcb889095f20680620.jpg)
Students from Qinghai University conduct germplasm resource identification in the national germplasm resources back-up banks in Xining, northwest China's Qinghai Province, April 2, 2024. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2024/04/03/464c19add9d9458da0db7e42a14170f6.jpg)
An interior view of the national germplasm resources back-up banks in Xining, northwest China's Qinghai Province, April 2, 2024. (Photo: China News Service/Ma Mingyan)