日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

Global EditionASIA 中文雙語Fran?ais
Lifestyle
Home / Lifestyle / People

Seeding the future of food

China Daily | Updated: 2022-04-09 15:04
Share
Share - WeChat
In the long-term repository, Dr Tang Xiao takes out the preserved rice seeds to check their conditions and prepares for seed renewal and reproduction.[Photo provided to China Daily]

The resource bank is the current effective and safe preservation method of crop germplasm. Preservation includes more than 10 processes. These involve receiving and registering seeds, checking weights, cleaning and selecting, vigor testing, drying and dehydration, moisture measurement and seed packaging before storage. Seed distribution, germination monitoring and reproduction update after delivery are also included.

In the long-term repository of the resource bank, germplasm resources are "hibernating" in a low temperature environment. Rows of 4-meter-high shelves are closely arranged, and each layer of the shelves is densely stored with small round golden boxes. Inside the box is a seemingly inconspicuous seed, but it records the genetic secrets of various crops for thousands of years. As one of the country's most important strategic resource reserves, these germplasm resources can be stored here for more than 50 years and can be easily awakened at any time of need.

|<< Previous 1 2 3 4 5 6 7 8 Next   >>|
Most Popular
Top
BACK TO THE TOP
English
Copyright 1994 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 五月婷婷激情综合网 | 正在播放久久 | 欧美一级录像 | 国产精品成人免费一区久久羞羞 | 日韩国产中文字幕 | 日韩性爰视频 | 久草三级 | 亚洲综合福利 | 最近中文字幕在线中文高清版 | h在线视频| 久久高清 | 日韩在线 中文字幕 | 欧美一级特黄视频 | 91免费网站| 一区二区三区精彩视频 | 精品成人在线视频 | 成年人免费毛片 | 日本中文在线 | 欧美成人黄色片 | 国产三级一区 | 亚洲色图50p| 午夜影视网 | 在线手机av| 精品国产一二区 | 天天狠狠干 | aaaaaaa毛片| 69xxx国产| 国产成人精品在线 | 四虎永久免费影院 | 永久免费在线视频 | 亚洲成人国产精品 | 九九精品免费视频 | 日韩免费久久 | 日韩在线观看网址 | 日韩在线高清视频 | 日韩在线无| 一级黄色片一级黄色片 | 国产一区二区三区四 | 日韩欧美91 | 高清国产一区二区三区四区五区 | 欧美日韩国产区 |