Recommended Excellent New Sweet Potato Varieties and Detailed Cultivation Points

Sweet potato, also called sweet potato, is a light-loving short-day crop that prefers warmth and is not cold-tolerant, with a well-developed root system and relatively good drought tolerance. Sweet potato is a common field cash crop in our daily lives, and China is also the world's largest sweet potato producer, with a very wide planting area and relatively high nutritional value, edible value and economic value. Nowadays there are many farmers growing sweet potato, so what excellent new varieties of sweet potato are there?

1. Yanshu 25

This variety has relatively good sprouting, medium-long vines, 5-6 branches, and medium-thick stems and vines; the tuber shape is spindle-shaped, with light red skin and orange-red flesh, concentrated tuber formation, neat tubers, about 5 tubers per plant, and a relatively high rate of large and medium tubers; good eating quality, fresh tuber carotenecarrot content 3.67 mg/100 g, relatively high dry-basis reducing sugar and soluble sugar content, relatively good storability, and good disease resistance. Appraised through national regional trials: resistant to root rot and black spot disease.

Cultivation points: soak seedlings before planting, suitable density 3600-4000 plants per mu. Plant appropriately early, and combined with film mulching can be marketed earlier. Other management measures are the same as general fields.

2. Jishu 26

Edible-type new sweet potato variety, red skin and yellow flesh, tuber shape long spindle-shaped, concentrated tuber formation, 4-5 tubers per plant, commodity rate as high as 95%. Resistant to stem nematode disease, root rot, vine cutting disease and black spot disease, good storability. This variety is especially suitable for baking and steaming. The average yield in spring sweet potato areas is more than 3500 kg, and in the 2012 national northern regional trial it ranked first in fresh tuber yield.

Cultivation points: for northern spring sweet potato planting, transplanting is suitable in early May, with a planting density of about 3600 plants.

3. Guangshu 87

Plant type semi-erect, medium-short vines, moderate branching, good sprouting, vigorous growth at seedling stage. Concentrated tuber formation, many tubers per plant, generally 5-9, large and medium tuber ratio 76%, tuber shape downward-swollen, tuber skin red, tuber flesh orange-yellow, tuber body smooth and attractive, tubers uniform, good storability. When steamed, the eating quality is mealy and fragrant with a strong taste and good mouthfeel. Moderately resistant to sweet potato blast disease, relatively wide adaptability. In 2004 it participated in the Guangdong Province sweet potato variety regional trial; the average yields per mu of fresh tubers and dry tubers were 2330 kg and 657.1 kg respectively, increasing yield by 29.91% and 24.12% compared with the high-quality control variety Guangshu 111, and both yield increases reached a significant level.

Cultivation points: spring sweet potato is generally planted in early May, with 3000-4000 plants inserted per mu. The growth period is generally 120-140 days.

4. Yellow Rose

A new edible-type sweet potato variety, with the female parent being the American Goldstar and the male parents being 15 varieties including Yizi 138, Xushu 18 and the American Rose, bred through mass hybridization. Seed tubers have good sprouting. Medium-long vines, 6-9 branches, medium stem thickness, tubers spindle-shaped, tuber skin red, tuber flesh orange-yellow. 4-6 tubers per plant, concentrated tuber formation, neat tubers, conducive to mechanical harvesting. The tuber surface is smooth, with good commodity quality, and good eating quality when steamed or roasted. In the field it shows relatively good resistance to stem nematode disease, black spot disease and root rot. In three years of variety comparison trials, the average yield per mu was about 2900 kg.

Cultivation points: suitable for planting in Beijing, Hebei and Tianjin regions, with spring sweet potato planting density of about 3800 plants per mu and summer sweet potato planting density of about 4200 plants per mu.

5. Yellow Banana

This variety is edible-type, with relatively good sprouting, medium-short vines, 4-6 branches, thick stems, tuber shape long spindle-shaped, tuber skin and tuber flesh both yellow, concentrated tuber formation, relatively neat tubers, 4-6 tubers per plant, and a relatively high commodity tuber rate; tubers smooth and flat, relatively good eating quality, reducing sugar content 6.67%, fresh tuber carrot content 8.16 mg/100 g; good storability; resistant to vine cutting disease; the trial average yield per mu was about 2700 kg, increasing yield by 33.6% compared with the control Yizi 138.

Cultivation points: suitable for planting in the Beijing region, with spring sweet potato planting density of about 3800 plants per mu and summer sweet potato planting density of about 4200 plants per mu.

The above is an introduction to new sweet potato varieties and cultivation points. At present, industries using sweet potato as a raw material have spread across more than ten industrial categories including food, chemicals, medical care and papermaking, with relatively high planting benefits.

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