Glutinous corn plant appearance and general hard-grain and horse-tooth type corn is basically the same, but the glutinousness of the seed is formed by the branched-chain starch in the endosperm, the surface is lusterless, waxy, opaque. The green tender cob is fragrant, sweet, tender and glutinous all together, digestible and easy to absorb. Glutinous corn in our country has long been cultivated, especially in the southwest region is the most common. Such as qiaojia in yunnan province 100 glutinous, baoshan glutinous bao gu, yongshan glutinous bao gu, bijiang glutinous bao gu and other farm varieties have long been famous. In recent years, many of China's scientific research units have also selected and bred a number of new varieties, so that the production of glutinous corn steadily growing, consumption continues to rise, is a very promising type of vegetable corn.

(2) sweet corn

Sweet corn is due to the grouting period of sugar transported to the ear is difficult to convert into starch, a large number of accumulations in the kernel, so it has a distinctly sweet flavor and name. Milk ripening period of sweet corn is extremely rich in nutrition, protein, fat, lysine, tryptophan and other contents are higher than ordinary corn. One of the water-soluble polysaccharide is ordinary corn 2.5 ~ 10 times, protein up to 38.5%, fat content up to 1 times more. And the lysine content is 3.2 times higher than milk, similar to eggs. And sweet corn is easy to be digested and absorbed by the human body, and both prevention and treatment of disease effects. Eat sweet corn, can prevent vascular sclerosis, reduce blood cholesterol content, but also against intestinal diseases and cancer, and can stimulate brain cells and supply adequate nutrition. In addition, sweating, sweet and palatable, the ideal drink for cows and dairy goats. Therefore, sweet corn in Europe and the United States as a high economic value of vegetable plants widely cultivated.

The main traits of sweet corn are smaller plants, strong tillers, and more leaves. Fruit cob smaller, longer wrapping leaves, the seed has a yellow and white color, almost all for the horny endosperm composed of. The embryo is large. The surface of the grain is wrinkled and translucent at maturity. Early maturity, not high yield. Excellent quality, good flavor, in addition to fresh food, can also be processed into canned goods.

(3) shoot corn

Shoot corn that is the female young ears of corn, because of its lower thick on the tip, shaped like bamboo shoots and named. Shoot corn has multiple ears, a single plant can be harvested 3 to 5 ears, but a single ear is lighter. Bamboo shoots of corn can be made into a crisp, delicious and pleasant high-grade dishes, but also can be made into canned food and other processed mouth sells well at home and abroad