At a series of high-end scientific and technological conferences recently jointly launched by the Jiangsu Provincial Association for Science and Technology, academician Li Jiayang, a renowned geneticist and vice president of the Chinese Academy of Sciences, pointed out that food security issues require that an objective and rational view of genetically modified technologies and their products is not necessary. Transgenic" and discoloration.
Academician Li Jiayang said that a dozen years ago, a scholar from the United States issued a book called "Who Will Feed the Chinese" and expressed concern about the problem of the 1.3 billion people in China eating. In fact, although China’s grain production has been steadily increasing, it still does not address the long-term security of food. It is precisely because of this that our country has proposed a strategy of relying on scientific and technological progress to increase grain production.
"Modern biotechnology is quietly changing our lives. Faced with the increasingly serious global food security issues, we can use new breeds of genetically modified organisms, biological pesticides, and research and development of new biological agents to bring a new green revolution to human life." . Academician Li Jiayang said that genetically modified crops can increase the cold resistance of crops, effectively prevent diseases and insect pests, greatly reduce the use of chemical pesticides, reduce production costs, reduce environmental pollution and harm other insects and humans and animals. At the same time, it is also possible to cultivate good crop varieties and improve land productivity.
Tomatoes were the first genetically modified foods introduced internationally. They were probably listed in the United States in the 1990s because they were not rotable and had a particularly good taste. At the time, they also had a label that indicated genetically modified foods, and the prices were lower than normal. Tomatoes are much more expensive. At present, the distribution of genetically modified crops is very extensive in the world. The United States is in the first place. Argentina, Brazil, Canada, India, and China are probably the top six countries. In particular, the proportion of soybeans and corn in the United States and Brazil has been very high, and the proportion of genetically modified cotton in China is also high. On the whole, the planting area of ​​genetically modified crops in all countries has greatly increased.
Right now, some genetically modified foods have been on the people's table. The public generally has two extreme understandings of genetically modified technologies and foods. One thinks that genetically modified organisms are terribly frightening and more worrying. The other thinks that genetically modified organisms have no safety issues and can be left to drift. In this regard, Academician Li Jiayang believes that the development of new technologies will inevitably involve risks. People's doubts can be understood. Consumers also have the right to choose whether or not to accept the results of new technologies. However, a scientific, rational and comprehensive analysis of "transgenic safety" should be conducted to avoid entering the misunderstanding of understanding.
Academician Li Jiayang said that genetically modified crops have two important functions: biological enhancement and functional foods. The essence of both is to change the nutrient composition of food through genetically modified methods to make it more conducive to human health. The former emphasizes the concern for the nutritionally-starved population and aims to “strengthen†the nutrients in the crop; the latter focuses on improving the quality of life. Therefore, the “adjusted†nutritional composition is the main feature.
It is understood that China has earlier established a law and a management system for the safety of genetically modified organisms, and has conducted a comprehensive study on biosafety evaluation. The rapid detection technology for genetically modified components has been put to practical use, and the environmental safety evaluation of genetically modified cotton and rice has also gone internationally. Forefront. In 2001, China promulgated the "Regulations on the Administration of Agricultural Genetically Modified Organisms", which stipulates: "All agricultural genetically modified organisms listed in the logo management catalog and used for marketing should be identified."
"Hundreds of millions of people at home and abroad have been eating for many years and have not found any damage to the health of genetically modified products; tens of millions of hectares of planted genetically modified crops have not proved that the ecological environment has been destroyed. This is an indisputable fact," Academician Li Jiayang said.
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