There are 35 million varieties of sweet potatoes, and the common varieties of sweet potatoes are: Su yam No. 2, Wan yam No. 5, Luoyan yam No. 10, Xiang yam No. 20, Xudan yam No. 32, mini sweet potatoes, purple sweet potatoes, Guang yam No. 135, Long yam No. 9 and so on.

1, Su yam No. 2

Su yam No. 2 is a sweet potato variety, potato long fusiform, potato skin purplish-red, flesh yellowish, single plant 4 to 6 potatoes. Sprouting is better, the potato seedling is thick and strong, the number of roots after planting is more, and the seedling is strong, early, and the stem and leaf growth is fast in the first and middle stages.

2, Wan yam 5

Wan yam 5 is a plant. Starch. Top leaves brown, leaf color green, leaf veins green, vein base purple, leaf shape heart-shaped, leaf blades larger, trailing color green, plant creeping, basal branching 4.2, 3.0 potatoes on a single plant, potatoes fusiform, potato skin purple-red, potato flesh white, budding sex is better.

3, Luo yam 10

growing period of 120 to 160 days, sprouting better, medium-long vine, branching number of 6 or so, the stem is thicker, the leaf blade heart-shaped, the top leaves and adult leaves are green, purple veins, stem color green.

4, Xiang yam 20

Xiang yam 20, medium-long trailing type, green top leaves, dark green leaves, leaf-shaped heart-shaped, leaf veins purple, leaf size medium, green stems, single-plant branching 5 to 7; potato earlier, neat and concentrated, single-plant potatoes 3 to 4, potatoes fusiform, potato skin light red, yellowish-white flesh, high commercial potato rate. The rate of commercial potatoes is high.

5, Xu yam 32

Xu yam 32 is the Xuzhou Agricultural Research Institute selected and bred high-quality edible and starch processing sweet potato varieties. The above-ground part of the adult plant of this variety is semi-erect, the terminal leaf is purple, the leaf blade is dark green, the leaf blade is large, and the whole edge is glabrous.

6, mini sweet potato

Mini sweet potato is a single potato mass 50-150g, fine texture, flavorful small vegetable sweet potato.

7, purple sweet potatoes

Purple sweet potatoes can usually enhance immunity, prevent constipation, etc., to enhance immunity, purple sweet potatoes can play a better, enhance immunity effect, can be applied to the immune function of the crowd.

8, Guang yam 135

Guang yam 135 is bred by the Guangdong Provincial Academy of Agricultural Sciences, the yield is 2000 to 2500 kilograms per mu.

9, Long yam No. 9

Long yam No. 9 is Longyan City Agricultural Science Research Institute rock yam No. 5 for the mother, Jinshan 57 for the father of the cultivation of new varieties of fresh food, processing sweet potato.