At present, China's seed industry has made great progress, but there are still gaps in some crop varieties: self-sufficiency and global competitiveness in rice and wheat provenances; Corn and soybean are limited by breeding and cultivation, and the yield per unit area is far from the world level, and some of them depend on imports. A few vegetable varieties can't meet the market demand and need to be imported.

Facing the complicated and changeable situation at home and abroad, it has become a national strategy to emphasize the safety of provenance and firmly hold the red line of 65.438+0.8 billion mu of cultivated land. Therefore, we believe that it will be the general trend to increase the research and innovation of seed industry, strengthen the application of biological breeding technology and accelerate the commercialization and popularization of high-quality varieties in the future.

corn

Corn belongs to Gramineae, also known as corn, corn cob, maize, pearl rice, etc. It is an important food crop in the world, widely distributed in the United States, China, Brazil and other countries. Corn has strong drought tolerance, cold tolerance, barren tolerance and excellent environmental adaptability.

The physical properties of corn are composed of grain color, grain shape, seed coat luster, grain length, grain width, 100-grain weight, grain size, grain uniformity and hard seed rate. The colors of corn seeds include seed coat, aleurone layer and endosperm. In most cases, the endosperm color of mature corn seeds is yellow or white, and the seed coat and aleurone layer are colorless and transparent.