After more than ten years of trials and trials, Chinese agricultural researchers have initially cultivated "super corn" with completely independent intellectual property rights. This new breed of super-high yield, excellent quality, and resistance to various natural disasters and diseases and pests is of great significance to improving China's grain output. "Super corn" is another major scientific research project in China's agricultural sector following "super rice." According to the research plan released on January 11, 2005 in Beijing, although the "super corn" in the true sense can only come out after 3 years, the main indicators of new varieties of maize cultivated in China are now close to "super corn", and internationally. Leading. According to Zhao Jiuran, director of the Maize Research Center of the Beijing Academy of Agriculture and Forestry Sciences who presided over the research plan, in 2004, the center screened and identified 4 new varieties with a yield of over 900 kilograms from tens of thousands of hybrid corn combinations. "The requirement for 1,000 kilograms per mu is only one step away, and other major indicators such as quality, resistance, and seed production are also very similar to "super corn." Maize is the second-largest crop in China. The annual planting area is nearly 400 million mu, but the average yield per mu is less than 400 kg. The output of a very small number of high-yielding fields is also very unstable. Even taking into account external factors such as differences in planting conditions in different regions, the average yield of “super corn†is at least 150 kg higher than that of the existing main cultivars. According to conservative estimates, if the annual promotion of "super corn" is 40 million mu, China's annual corn production will increase by 6 billion kg, equivalent to an additional 15 million mu of land. As a big producer of food, China has always attached great importance to corn breeding research. The “Huangzao 4†cultivar cultivated by the Beijing Academy of Agricultural Sciences won the first prize of the National Science and Technology Progress Award. It is still the core corn variety with the largest number of domestically-matched varieties and the widest application area, and its ear is the fruit of China’s agricultural scientific research in the 20th century. The typical representative was sealed up at the China Millennium Monument. "Huang Zao 4" and other fine varieties have been planted on a large scale in China, which has accumulated experience for the research and promotion of "Super Maize". At the recent "Super Maize" research project demonstration meeting, agricultural scientific experts agreed that "Super Maize" has advanced technology in germplasm innovation, identification, screening and cultivation, and has completely independent intellectual property rights, and it is a major technological innovation project. Under the condition of continuous reduction of arable land in China, "super corn" is suitable for planting in the main producing areas of the Huang-Huai-Hai, Northeast, and North China, and its basic theoretical research and application and promotion are of far-reaching significance. News background: In order to distinguish the super corn from normal corn widely grown in China, agricultural experts dubbed the new corn variety with high yield and good quality as “super corn†to highlight its huge contribution to food production. "Super corn" cannot simply be regarded as big ear corn and tall stalk "giant" corn. Is it "super corn"? There are five main indicators. The first is super-high yield, the yield per mu must be stable to 1000 kg or more than 20% of the main cultivars in the same growing period; the second is high quality, the grain quality must reach the national second-level standard or above, and there should be corresponding weight, weight, protein, and moisture. Claim. The third is to resist more than 5 kinds of major pests and diseases, weather conditions such as lodging resistance, drought resistance, resistance to rain and sunshine, etc. Fourthly, it can be planted in large areas to adapt to different growth conditions in China's main maize production areas; Mu yield must reach 500 kg or more. Experts pointed out that the cultivation of "super corn" is a long process. The research on "super corn" in China began in the 1990s. Through the extensive collection of excellent germplasm resources at home and abroad for matching and screening, the "super corn" has been preliminarily cultivated and successfully planted, but its super-high yield mechanism, etc. The basic subject remains to be further studied. At present, Beijing has decided to include “Super Maize†as a major scientific research project. It plans to use 3 years to allow the “Super Maize†to have large-scale conditions for promotion.
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