1. Sweet corn is divided into ordinary sweet corn and super sweet corn, which are mainly used for fresh food and quick freezing. Its characteristics are: high sweetness, the sweetness of ordinary sweet corn is about 2.5 times that of ordinary corn, and the sweetness of super sweet corn is more than 2 times that of ordinary watermelon; The peel is soft, waxy and delicious. It can be eaten fresh, frozen or canned. Straw is high quality silage. The varieties are enhanced super sweet corn Tiandan No.8 cultivated by China Agricultural University and Jinxian 1 cultivated by Tianjin Academy of Agricultural Sciences.

2. Waxy corn is mainly used for fresh food. Compared with ordinary corn, it is characterized by strong waxy, soft and fragrant, sweet and delicious, and unique flavor. Straw can be used as high quality silage. The varieties are Yannuo No.6 cultivated by Shandong Yantai Academy of Agricultural Sciences, Zhongnuo 1 cultivated by China Academy of Agricultural Sciences, and Lunuo corn 1 cultivated by Chifeng Seed Company of Inner Mongolia and Shandong Academy of Agricultural Sciences.

3. High-oil corn is mainly used as chemical raw materials and processed food. The oil content of high-oil corn is as high as 8% ~ 9%, which is about 1 times higher than that of ordinary corn. In particular, corn oil, oleic acid and linoleic acid have a high proportion and rich nutrition, which has a good health care effect on human body. This variety is "Gaoyou 1 15" cultivated by China Agricultural University.

4. High lysine corn is also called high protein corn and high nutrition corn. The content of lysine and tryptophan in its grain is higher than that of common corn 1 times. Rich in nutrition and excellent in quality, it can be used to make high-quality food and can also be used as high-quality concentrated feed for livestock and poultry. The varieties are Lu Dan 203 cultivated by Shandong Academy of Agricultural Sciences, Zhongdan 9409 and Zhongdan 3880 cultivated by China Academy of Agricultural Sciences.

5. High starch corn is mainly used in pharmaceutical industry. The starch content of its grain is higher than that of ordinary corn, which is an important raw material for making antibiotics. Varieties include "Sidan 19", a high starch variety cultivated by Siping Agricultural Institute of Jilin Province.

6. Young ears of corn for bamboo shoots are called corn bamboo shoots, which are mainly used for cooking. It is characterized by many spikes per plant, generally 4-6 spikes per plant. Its ear is crisp and delicious, rich in nutrition, and it is a high-grade dish. The varieties are "Sweet Bamboo Shoot 10 1" cultivated by China Agricultural University, "Sweet Bamboo Shoot Za No.4" cultivated by Beijing Academy of Agriculture and Forestry, and "Lu 1" cultivated by Yantai Academy of Agricultural Sciences.

7. Green corn is mainly used as silage. It has the characteristics of high yield, high quality and disease resistance, especially the yield of straw silage is higher than that of ordinary corn. The variety is "Liaoyang White" cultivated by Liaoning Academy of Agricultural Sciences.

8. Popped corn is mainly used as raw material for puffed food. Popcorn is a multi-fiber, low-calorie carbohydrate food with large flowers, good color, crispness, fragrance, rich nutrition and easy digestion. The varieties are "Bainuo No.2" and "Baizaonuo" bred by China Agricultural University.