In recent years, sweet potatoes as health foods and functional foods have become more and more popular among people. With the increase in demand, the economic benefits for farmers in planting sweet potatoes are significantly better than other crops. However, what kind of variety is selected depends on the sales market or processing purpose.
First, edible and edible processed varieties require high sugar content, and the potato meat is red to yellow, mature, resistant to storage, potato-shaped appearance, medium dry rate, less crude fiber, good taste, suitable for fresh food and cooking. There are varieties of sweet potato 4, Su potato 8, Shanxiong 431, Xushu 23. Baked and potato chips French fries processing varieties require a slightly lower dry matter content, high sugar and pectin content, bright color of the finished product, texture is transparent and flexible, taste sweet and soft, suitable varieties are Beijing 553, Sushu 8, Yufeng, etc. .
Second, starch processing varieties require potato white to pale yellow, high dry rate, high starch content, good starch processing quality. Suitable varieties include yam 98, yam and yam 99, Xushu 18, Luxuan 1 and Xushu 22.
Third, purple sweet potato varieties Purple sweet potato is rich in anthocyanins, and high levels of trace element selenium, strong anti-cancer activity. The study of sweet potato in our country started late and the yield level was low, but the market price was higher. The high-pigmented varieties with slightly bitter taste can be used to extract natural pigments such as tobacco 176 and tobacco 337; the pigment content is slightly lower and can produce fresh health-care potatoes and food additives, including Guangshu 35, Xuzi 1, and Jishu 18.
Fourth, high carotene varieties Red heart varieties are rich in carotene, 100 grams of fresh potatoes can reach 15 mg or more. This variety can be used to directly eat and extract natural carotene. The natural carotene extracted with sweet potato can be used as a food additive and can also be used as a chemical raw material. Suitable varieties are rock potato 5, Xu 22-5, Victoria and so on.
Fifth, dishes with varieties of vegetables with sweet potato is a new species developed in recent years, mainly to eat the shoots above the shoots of young leaves. The sweet-stemmed shoots contain a lot of protein, fat, dietary fiber, minerals, and vitamins. The special varieties require high vitamin content and mineral content in the stems and leaves, strong branching force, high yield in the tip of the petiole, no bitterness, no odor, less crude fiber, good color, and a young shoot tip, no fluff, and delicious taste. Can be cold, stir-fried, shabu-shabu. Such varieties are Tainong 71, Qishu 53, Shangshu 19 and so on. After 30 days of open cultivation, harvesting began and harvested once a day for 10 days. The yield per mu was 1000 kg and the value was 3,000 yuan. At the same time, 500 to 1000 kg of potato can be harvested.
Six, mini-potato varieties are emerging varieties of fresh sweet-smelling characteristics of sweet potato varieties, suitable for microwave baking or cooking, eating convenient, nutritious, deeply loved by consumers. The economic benefits of mini-sweet potato are significantly higher than that of ordinary sweet potato. The quality of the product is improved through quality packaging, and its price is 3 to 6 times higher than that of ordinary sweet potato. The requirements for mini-sweet potato are that the roots of the individual plants are large and small, and the weight of the individual pieces is 50-150 g. The appearance is smooth, beautiful, and the shape of the potato is good. The texture is delicate, the fiber is small, the taste is good, the pests and diseases are protected, the precocity is good, and the storage is resistant. Suitable varieties are yam 4 potato, yam potato 98, yam potato 71, jishi 18 and so on.
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