China has cultivated "super corn" with high quality and high yield

Introduction: after more than ten years of repeated experiments and trial planting, Chinese agricultural researchers have initially cultivated "super corn" with completely independent intellectual property rights This new variety with super high yield, excellent quality and resistance to various natural disasters and diseases and insect pests is of great significance for improving China's grain output Super corn is another important scientific research project in China's agricultural field after super rice According to the research plan recently released by Beijing, although the real meaning of "super corn" will come out three years later, at present, the main indicators of new corn varieties cultivated in China are close to "super corn", which is in the leading position in the world According to Zhao jiuran, director of the corn research center of Beijing Academy of agricultural and Forestry Sciences, who is in charge of the research program, in 2004, the center screened and identified four new varieties with a per mu yield of more than 900 kg from tens of thousands of hybrid corn combinations The yield index is only one step away from the requirement of 1000 kg per mu of "super corn" Its quality, resistance, seed production and other main indexes are also the same as "super corn" Corn "is very close Corn is the second largest crop in China, with an annual planting area of nearly 400 million mu, but the average yield per mu is less than 400 kg, and the yield of a very small number of high-yield fields is also very unstable Even taking into account the differences of planting conditions in different regions and other factors, the average per mu yield of "super corn" is at least 150 kg higher than that of the existing main varieties According to conservative estimates, if 40 million mu of "super corn" is promoted every year, China's annual corn production will increase by 6 billion kg, equivalent to 15 million mu of new land As a big country of grain production, China has always attached great importance to maize breeding The "Huangzaosi" variety cultivated by Beijing Academy of Agricultural Sciences has won the first prize of national science and technology progress At present, it is still the core maize variety with the most matching varieties and the widest application area in China The "Huangzaosi" and other excellent varieties have been widely planted in China, which has accumulated experience for the research and promotion of "super maize" At the recently held demonstration meeting of "super corn" research plan, agricultural scientific research experts agreed that "super corn" is a major technological innovation project with advanced germplasm innovation, identification, screening, cultivation and other technologies, and full independent intellectual property rights With the decrease of cultivated land area in China, "super corn" is suitable for planting in the main production areas of Huanghuai, northeast, North China and so on.