Workflow
转基因作物推广加速,未来大有可为
Guo Tai Jun An Qi Huo·2025-04-28 08:26
  1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - In 2025, China's genetically modified (GM) corn industry has reached a crucial development stage. The Ministry of Agriculture and Rural Affairs' public announcement of 99 GM corn and soybean varieties on April 8 demonstrates China's determination to promote GM technology, responding to the call of the Central No. 1 Document to "develop new - quality productivity in agriculture." GM corn, as a pilot crop, is expected to be more widely promoted [1][3]. - With the increase in the planting area of GM corn year - by - year and the subsequent growth of penetration rate, China's domestic corn yield per unit is expected to increase, and the supply - demand structure will be further improved [3]. - In the future, with increased policy support and technological maturity, the commercialization of GM corn, soybeans and other crops is expected to make further breakthroughs, becoming an important means to ensure food security and agricultural modernization [11]. 3. Summaries Based on Relevant Catalogs 3.1 Transgenic Introduction and Global Development Situation 3.1.1 Basic Introduction of GM Corn - GM corn is created by using genetic engineering to introduce foreign genes into the corn genome, endowing it with new genetic traits such as insect resistance, herbicide tolerance, stress tolerance, and improved nutritional value. Global large - scale commercial GM crops are mainly concentrated in the first - generation products, with herbicide - tolerance (HT) and insect - resistance (Bt) being the main target traits, and most GM corn has both traits [4]. - Different target genes in GM corn have different action mechanisms. For example, the Bt gene makes corn produce insecticidal proteins to kill pests, and the epsps gene makes corn tolerate glyphosate herbicides [5]. 3.1.2 Global GM Crop Situation - Since 1996, the global commercial planting area of GM crops has been increasing steadily. By 2024, it had reached 210 million hectares. Currently, more than 30 countries allow the commercial planting of GM crops [5]. - Globally, the main GM crops are soybeans, corn, cotton, rapeseed, and sugar beets. In terms of planting area, soybeans rank first, followed by corn. In terms of the proportion of GM crops, cotton has the highest GM coverage rate [6][7]. - The countries with the largest GM crop planting areas are the United States, Brazil, Argentina, India, and Canada, accounting for over 90% of the global total. In the United States, the proportion of GM corn with stacked traits has been increasing, and by 2024, it accounted for 83%. The penetration rate of GM corn in the United States reached 94% in 2024 [7]. 3.2 Policy Driven 3.2.1 Development Process - China's development of GM crops follows the path of "non - edible → indirectly edible → edible." The development of GM technology in China started in 1986 and has gone through several stages, and in the future, the commercialization of GM crops is expected to make further breakthroughs [10][11]. 3.2.2 Approval Process and Current Achievements - The commercial planting of domestic GM crops follows a strict approval process, including three - scale tests, application for a safety certificate, and variety approval. As of December 31, 2024, there were 34 GM corn varieties in the valid period in China. If the varieties in the third - batch list pass the approval, China will have a cumulative total of 161 GM corn varieties and 19 GM soybean varieties approved [13][14][15]. 3.3 Impact of GM Technology on Yield per Unit - According to US experience, the yield per unit of Bt insect - resistant corn has increased significantly compared to traditional varieties. In China, the average yield of corn has been increasing, and the large - scale application of GM corn will further increase the yield potential [17][18]. - GM corn technology has great application potential in insect resistance and herbicide tolerance. It can reduce the cost of pest control by 30% - 50%, increase yield by 8% - 12%, and has a control success rate of over 90% against pests such as fall armyworms. The herbicide - tolerance effect can reach over 95%. The average yield increase of GM corn is about 8.9% [18]. - Different companies' GM corn varieties have different yield - increasing effects. For example, Dabeinong's GM corn varieties in the Yellow - Huai region and Northeast China have an average yield increase of about 10% compared to conventional varieties [19]. 3.4 Seed Pricing and Impact on Corn Planting Costs - The profitability of using GM seeds for individual farmers depends on yield loss reduction and relevant pesticide and seed costs. If the benefits from yield loss reduction plus the reduction in pesticide expenditure are greater than the premium of GM seeds, it is profitable to use GM seeds [19]. - GM crop seeds have a premium compared to conventional seeds. Assuming a 40% premium rate for domestic GM corn seeds, GM corn can significantly reduce pesticide use. A rough cost calculation for Jilin Province shows that the production cost per mu of corn wet grain can be reduced by about 7% [20]. 3.5 Estimation of GM Corn Promotion Area - From 2021 to 2024, the pilot planting area of GM corn in China has gradually expanded. According to reports, in 2025, the planting area of GM corn in China is expected to reach 45 - 50 million mu, and the number of permitted planting provinces will increase from 8 to 13. The estimated penetration rate in 2025 is about 6% - 7.7%, reaching 20% in 2026, increasing by 30% - 40% annually from 2027 - 2028, and approaching the international mature level in 2029 [24][25].