杂交玉米核不育制种技术走向产业化

Core Insights - The article discusses the successful development of a new hybrid corn male sterility breeding technology, known as "nuclear sterility breeding technology," which has been under research for 15 years and is now ready for industrial application [1][2] Group 1: Technology Overview - The nuclear sterility breeding technology integrates transgenic maintainer lines, seed grading devices, and marker screening methods to achieve efficient propagation of male sterile lines and high-purity production of hybrid seeds [1] - This technology addresses the long-standing challenges in hybrid corn seed production, such as reliance on manual or mechanical detasseling, by enabling the use of male sterile lines to reduce production costs and enhance seed purity [1][2] Group 2: Implementation and Results - Since 2022, trials of the nuclear sterility breeding technology have been conducted in multiple regions, including Hainan, Gansu, Xinjiang, Shanxi, and Jilin, demonstrating significant industrial advantages [2] - The technology has shown to increase yields by over 10% in male sterile seed production bases compared to traditional manual detasseling methods under the same cultivation management conditions [2] Group 3: Commercialization Efforts - Sichuan Tianneng Jingxiu Biotechnology Co., Ltd. has been authorized by China Agricultural University to develop the nuclear sterility breeding technology for commercialization [2] - The company has collaborated with Chengdu Hancheng Guangyi Technology Co., Ltd. to develop an intelligent impurity removal machine that enhances impurity removal efficiency by accurately locating and cutting out undesirable plants [2] Group 4: Competitive Advantage - The nuclear sterility breeding technology is positioned as a core component in utilizing hybrid advantages, providing a significant competitive edge that will contribute to the advancement of China's biotechnology breeding industry [2]