Transgenic cotton technology

With the strong support of the relevant ministries and commissions of the country, the technological innovation and industrialization of China's domestically produced transgenic insect-resistant cotton has reached a new level. This year, the cultivated area of ​​domestically produced transgenic insect-resistant cotton accounts for 70% of the country's transgenic insect-resistant cotton, which has produced huge benefits in reducing the use of pesticides, reducing environmental pollution, and increasing farmers' income. The National Agricultural Technology Extension Service Center of the Ministry of Agriculture recently convened the “Home-made Conference on Technology Innovation and Industrialization of Transgenic Bt Cotton” in Luohe City, Henan Province. The reporter saw that dozens of transgenic insect-resistant cottons from research institutes across the country are new. Variety grows gratifyingly, and harvest is on the horizon. According to reports, China began constructing insect-resistant genes in 1991. Monovalent insect-resistant genes were synthesized in 1992 and became the second country to independently construct insect-resistant genes with independent intellectual property rights after the United States. Over the past 10 years, thanks to the unremitting efforts of agricultural scientists in China, insect-resistant genes have been constantly refreshed, and insect-resistant genes have been constructed from monovalent to double-valent, with the resistance of cotton bollworm to multiple resistances such as disease resistance and aphid resistance, and now they have begun to improve their quality. Improve gene construction in terms of yield. In response to problems such as premature senescence in the late stages of genetically modified insect-resistant cotton varieties, agricultural scientists researched and proposed the “Healthy Cultivation Method”, formulated four sets of cultivation technical regulations and two sets of pest and disease prevention technical regulations, and succeeded in large-scale demonstration. The lint yield reached 149 Kilograms, more than 20% more than the control. In terms of industrialization, there have emerged four types of genetically modified insect-resistant cotton varieties industrialization-oriented, enterprise-led, base-based, and association-oriented, including the Cotton Research Institute of the Chinese Academy of Agricultural Sciences and the Genesis Transgenic Technologies Co., Ltd. The business model greatly accelerated the speed of the promotion of domestically produced transgenic cotton. At present, the domestic market share of transgenic insect-resistant cotton seeds has surpassed foreign insect-resistant cotton, which occupies a dominant position in the production of insect-resistant cotton in China. Dr. Xia Jingyuan, director of the National Agricultural Technology Extension Service Center, said that while seeing tremendous achievements in domestically produced transgenic insect-resistant cotton, the competitiveness of domestically produced transgenic insect-resistant cotton should be further enhanced. The top priority is to pay close attention to the industrialization of genetically modified insect-resistant cotton varieties.

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