A New Variety of American Ultra-short Sweet Potato
1. Features:
① Excellent appearance: long tubers, single potato weight 300~ 800g, maximum 1000g, more and uniform tubers, 4~8 tubers per plant, purple black bright, beautiful.
② Excellent quality: the nutritional content is significantly higher than other potatoes, its lysine, potassium, manganese, zinc content is 5~8 times higher than the general sweet potato, especially the anti-cancer substance iodine selenium content is more than 20 times higher than other sweet potato dip food in the first place in the United States known as "green health food."
③ Excellent taste: cooked food is sweet and delicious, and the color, flavor and taste are complete. It combines the advantages of nutritional quality and eating quality, so it is the first-class health food for city residents and hotels.
2. Characteristic characteristics: strong budding, more branches, vines 70~90 cm, top 3~4 purple, leaves heart-shaped, no notch, middle and lower leaves stem green, veins and leaf base purple, purple black smooth, purple black flesh, concentrated tuber, anthocyanin content 75 mg/100 g fresh weight, dry matter rate up to 36.50%, under the density of 3500 plants/mu high tuber rate, spring tuber yield 2500~4000 kg, Summer sweet potato yield 1500~3000 kg per mu, suitable for baking, steaming, cooking, ripe after strong fragrance, dry sweet, purple black color. American black sweet potato is not prosperous and grows steadily, overcomes the vine length, and is more prone to flourish and grow, causing the vine rot phenomenon. Compared with "Japanese Chuanshan purple black sweet potato," this variety has more advantages."Chuanshan purple black sweet potato" has a vine length of 3~5 meters, which is not easy to set potatoes, and is more prone to flourish and grow, causing the vine rot phenomenon. American black potato has just been introduced into China, and its provenance is scarce. Each kilogram of sweet potato contains 23 grams of protein, 290 grams of sugar, 3 grams of fat, 6. 80 grams of vitamin A, 80 mg of calcium, 200 mg of phosphorus, 4 mg of iron, 300 mg of vitamin C, 5 mg of nicotinic acid and 300 mg of ascorbic acid. It is rich in carotene and nine kinds of gluconic acids. Its content is higher than that of rice, flour, corn and sorghum. It is an ideal health food. It can prevent and treat collagen diseases such as respiratory tract, digestive tract and arthritis, inhibit cancer, resist fatigue and aging, improve human immunity, and keep slim and fit.
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