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Introduction and Characteristics of the Shuangwan No. 1 Sweet Potato Variety

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The new sweet potato variety Shuangwan No. 1 was recently bred by the Institute of Sweet Potato, Chinese Academy of Sciences. This variety has stable genetic traits, green stems, heart-shaped leaves with serrated edges, and vines 1-1.5 m long. It sets tubers early and in a concentrated manner. The tubers are long cylindrical in shape, with dark purplish-red skin that is smooth and attractive, and pure white flesh. It has strong tuber-setting ability, moderate tuber size, and good uniformity. Its starch content is 24%-28%, and the starch is especially white and high quality. For spring sweet potatoes, plant 3000-3500 plants per 667 sq m (1 mu), with a yield of 4000-9000 kg; for summer

The new sweet potato variety Shuangwan No. 1 was recently bred by the Institute of Sweet Potato, Chinese Academy of Sciences. This variety has stable genetic traits, green stems, heart-shaped leaves with serrated edges, and vines 1-1.5 m long. It sets tubers early and in a concentrated manner. The tubers are long cylindrical in shape, with dark purplish-red skin that is smooth and attractive, and pure white flesh. It has strong tuber-setting ability, moderate tuber size, and good uniformity. Its starch content is 24%-28%, and the starch is especially white and high quality. For spring sweet potatoes, plant 3000-3500 plants per 667 sq m (1 mu), with a yield of 4000-9000 kg; for summer sweet potatoes, plant 3500-5000 plants, with a yield of 3000-5000 kg. This variety is tolerant of fertilizer, mechanical sowing, and storage, and is highly resistant to the three major sweet potato diseases. Sowing period: spring planting from March 15; summer planting from May 15 to June 15.

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