Black crop varieties: eat healthy and grow to make money

Editor's note: "black" varieties grow "black" crops, "black" crops produce "black" food. Similarly, the hot sale of black food requires more black crop raw materials, calling for more black crop varieties. The smoothness of the chain shows that growing black crop varieties is really a good choice. In order to let more farmers understand black crop varieties, dare to introduce and plant them, and be good at taking care of them, today's new variety stands will introduce you to several of them. I hope you will have a goal when you choose, have confidence when planting, and make money when you harvest.

The anthocyanin content of black potato black rose 1 is comparable to that of blueberry.

In December 2015, the medium-ripe purple potato variety Black Rose 1 (Hisen 9) was approved by the crop Variety approval Committee of Shanxi Province. the variety was selected by Leling Xisen Potato Industry Group Co., Ltd. and the National Potato Engineering and Technology Research Center by using a hybrid technology system, and the period from emergence to harvest is about 95 days.

Potato is a healthy food with rich nutritional value. it is rich in high-quality protein, minerals, vitamins, dietary fiber and other nutrients needed by the human body, and is known as "king of nutrition" because of its low calorie and fat. It can also effectively prevent many diseases such as obesity, diabetes, cerebrovascular disease, depression and tumor.

Ji Qingyun, deputy director of Shanxi Potato detoxification Center and promotion researcher, said that Black Rose No. 1 has a strong growth potential. The potato shape is long oval, purple skin and purple meat, the potato skin is smooth, the bud eye is shallow, the tuber is concentrated, the number of tubers per plant is about 7, the commercial potato rate is 65%. The tuber has a moderate dormancy period and is resistant to storage. After identification and analysis, the plant was not resistant to late blight and moderately resistant to virus. Anthocyanin content 35.86mg / 100g fresh potato, total phenol content 114.538 mg / 100g fresh potato, starch content 12% 14%, steamed taste excellent.

This means that in addition to carbohydrates, starch, protein and other nutrients of common potatoes, Black Rose 1 is also rich in pure natural anthocyanins and phenolic antioxidant phytonutrients. its antioxidant substances are 5 to 10 times higher than those of ordinary varieties, and the content of anthocyanins is at or close to the level of blueberries.

Anthocyanin can enhance the elasticity of blood vessel wall, improve the function of circulatory system, enhance skin smoothness, inhibit inflammation and allergic reaction, and has obvious inhibitory effect on human tumor cells and antioxidation. Most phenols in potatoes are chlorogenic acid and caffeic acid. A study estimated that potatoes are the third important source of phenols after apples and oranges.

Researcher Ji Qingyun said that from 2013 to 2014, this variety participated in the regional trial of the characteristic group of potatoes in Shanxi Province. The average yield per mu in the dryland experimental area was 1554.8 kg in two years, which was 23.7% higher than that of the control Heimeiren. In 2015, the variety participated in the production test of the characteristic group of potatoes in Shanxi Province. The average yield per mu was 1120.2 kg, which was 10.0% higher than that of the control Heimeiren.

This variety can obtain high yield under good water and fertilizer conditions. for example, the yield per plant in irrigated land in Yanggao County, Shanxi Province is more than 1.5 kg, the weight of sweet potato is about 750 g, and the average yield per mu in Inner Mongolia is 2500-3500 kg. Under the background of vigorously implementing the industrial development of potato as a staple grain product, the new variety of purple potato has realized the perfect combination of high yield and high nutrition. At present, purple potato varieties are popularized and planted in Shanxi, Shandong and Inner Mongolia, with an average yield of 2750 kg per mu.

Colored potato has multi-functional uses such as grain, economic and medicinal crops, and has a good development prospect. Because the market price of colored potato is higher than that of ordinary potato, and the planting conditions and cultivation techniques are no different from ordinary potato, the development of color potato industry in poor areas can increase agricultural production and farmers' income without increasing production cost.

At the same time, with the continuous improvement of people's living standards and the strengthening of the concept of health, purple potatoes containing anthocyanins can better meet people's demand for health food, and can be preserved for a long time after being processed into whole powder. As a filler for many kinds of food, purple potato is more and more concerned and welcomed by consumers.

At present, Shanxi has developed colorful potato flour, steamed bread, noodles, bread, pastries, snack food, functional drinks, raw juice and a variety of delicious dishes and other foods. Because purple potato varieties are characteristic varieties and there are few in the market, the selling prices of these varieties rich in polyphenolic antioxidants such as pure natural anthocyanin and chlorogenic acid are nearly double that of other varieties (average 10 yuan per kilogram). The net income can be increased by 5000 yuan per mu.