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
China
Home / China / Innovation

Gene designing delivers crops with higher yields

By Zhao Yimeng | China Daily | Updated: 2025-12-23 09:13
Share
Share - WeChat
Chinese Academy of Sciences (CAS) academician and researcher of the Institute of Botany Chong Kang introduced the research results at a press conference held at the Institute of Genetics and Developmental Biology, CAS in Beijing, Dec 22,2025. [Photo/Xinhua]

A major research program aimed at designing seeds with greater precision has delivered tangible gains in crop yields and resource efficiency, marking significant progress in strengthening food security and sustainable agriculture, scientists said.

Launched in November 2019, the Chinese Academy of Sciences' Strategic Priority Research Program on "Precision Seed Design and Breeding" has identified a series of key genes linked to higher yields, improved quality, more efficient fertilizer use, and stronger resistance to disease and environmental stress.

Researchers have developed 37 pilot crop and aquaculture varieties designed to boost output and quality while reducing input costs and losses. These varieties have been promoted across about 965,000 hectares of farmland nationwide, said Li Jiayang, an academician of the Chinese Academy of Sciences and the program's chief scientist.

The program, led by the academy and in collaboration with about 30 research institutions, focuses on major crops such as rice and wheat, as well as aquatic species. It has designed the varieties to achieve a 10 to 20 percent increase in yield, a 15 to 20 percent reduction in inputs such as fertilizers and pesticides, or a 15 to 20 percent reduction in losses.

"Over the past six years, we have uncovered key genes and regulatory networks that support high yield, quality and resilience," Li said. "This has allowed us to create new varieties that perform better while using fewer resources."

One breakthrough involved identifying a key gene that enables rice to maintain stable yields even when nitrogen fertilizer use is reduced by 20 to 30 percent.

Chong Kang, an academician of the Chinese Academy of Sciences and a researcher at its Institute of Botany, said the discovery of a gene known as TCP19, which improves nitrogen-use efficiency, gives farmers a way to cut costs and reduce pollution without sacrificing output.

In wheat, researchers focused on reducing losses caused by major diseases. New varieties have been developed to lower pesticide use and secure harvests. Zhongke 166, a high-yield, scab-resistant wheat variety developed under the program, has already been planted across nearly 100,000 hectares of farmland, Chong said.

A team led by Gao Caixia at the academy's Institute of Genetics and Developmental Biology developed a new genome-editing approach that overcomes the long-standing trade-off between disease resistance and high yield.

Using the technology, the researchers created a wheat variety that is both resistant to powdery mildew and high-yielding. In 2024, the breakthrough earned China's first biosafety certificate for the production and application of a genome-edited staple crop.

Scientists have also developed new strains of silver crucian carp that grow faster, survive better and convert feed more efficiently.

Gui Jianfang, an academician of the Chinese Academy of Sciences and a researcher at the academy's Institute of Hydrobiology, said one new candidate variety, Zhongke 6, grows about 25 percent faster than earlier strains.

Xue Qiang, head of the academy's Bureau of Science and Technology for Sustainable Development, said the significance of the program goes beyond maintaining backup seed resources.

"Future breeding efforts aim to produce seeds that are not only higher-yielding but also more nutritious, water-saving and resilient to climate stress," he said.

Chong said key areas for future research include understanding how multiple traits — such as yield, quality and resilience — can be combined more effectively. He added that improving crops' adaptation to climate variability and addressing challenges related to genetic transformation, regeneration and genotype dependence will also be prioritized.

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: 免费看成人 | 九九久久精品 | 欧美精品在线一区二区 | 日本一区二区视频在线 | 久久精久久 | 亚洲一级淫片 | 黑人精品一区二区 | 99热这里都是精品 | 国产精品69久久久久孕妇欧美 | 国产一级免费视频 | 婷婷日韩| 亚洲女优在线观看 | 久久久亚洲国产 | 国产91福利 | 国产成人福利视频 | 精品国产大片大片大片 | 韩国jizz| 日韩一区免费 | 久久精品一区二区 | 欧美在线日韩在线 | www.色妞| 久久98| 狠狠狠狠狠狠 | 日本精品三区 | 哥布林洞窟动漫在线观看 | 激情丁香六月 | 国产一道本 | 久久影院av | 国产又黄又硬又粗 | 一级裸体片 | 久久免费资源 | 欧美一区二区三区不卡 | 色婷婷精品视频 | 久久久久久久久成人 | 玖玖玖影院 | 黄网在线观看视频 | 亚洲色在线视频 | 亚洲二区视频 | 色综合天天色 | 乱lun合集男男高h | 日韩久草|