New sweet potato varieties are as follows:

1, high-yield and high-efficiency purple potatoes violet - No. 1, fusiform potatoes, purple skin, flesh color purple-red bright. Summer potatoes planted 3500 plants per mu, an average of 3 to 4 potatoes per plant, the yield of a single plant 1 to 1.5 kilograms, 4000 kilograms per mu.

2, high-yield and high-starch sweet potato double one thousand, strong sprouting, stem and vine stout, leaf heart-shaped, early and concentrated potato. The potatoes are fusiform, with purple skin and white flesh, and the fresh potatoes contain 28% to 33% starch. The single plant yields 2 to 4 kilograms of potatoes, with a yield of 5,000 to 9,000 kilograms of fresh potatoes per mu.

3, high-yield and high-starch sweet potato World Potato King No. 1, sweet potato sprouting strong, leaves, stems green, trails in the long, concentrated potatoes, high rate of large potatoes. The potatoes are long fusiform, with purplish red skin and white flesh, drying rate of 40% and starch content of 28% to 35%. Spring and summer can be planted, 4,000 plants per mu, single plant yield 2 to 4 kilograms, 5,000 to 9,000 kilograms per mu.

4, green health care black potatoes new varieties of German black one, is the latest introduction of new varieties of black potatoes from Germany, this variety of sprouting strong, more branches, trailing length of 100 cm or so, leaf heart-shaped. The potatoes are not growing rapidly, and the potatoes are early and concentrated. Potatoes spindle-shaped, uniform size, black glossy skin, purple-black flesh, anthocyanin content of 100 mg/100 grams of fresh weight, the drying rate of 34.3%.