New Sweet Potato Variety--Jinshan 1255
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Variety Approval No.: Guozuo 2002003 Crop Type: Sweet Potato Variety Name: Jinshan 1255 Breeding Unit: College of Crop Science, Fujian Agriculture and Forestry University Variety Source: Parent: Jinshan 513; Familial: C180, F280, Nanhui No. 7, Xiangshu 75-55 and so on constitute the group parent. Provincial certification status: Fujian Crop Variety Approval Committee approval in 1997, and the Jiangxi Provincial Crop Variety Approval Committee in 2000. Characteristics: Purple top leaves, green leaves, deep leaves and leaves, moderate leaf size, purple veins, petiole base green. Plant type is semi-vertical, with more base parts, green stems, medium thickness, and more base parts. The potato block is long spindle-shaped, smooth and free of groove, the potato skin is light red, the potato yellow is yellow, and the taste is fragrant and sweet. The number of tubers per plant is generally three. The drying rate of the potato block is 23 to 30%, and the flour yield is 14 to 17%. The taste is fragrant and sweet. Fujian Agricultural University determined that the dry-based crude protein was 5.13% and the fresh potato vitamin C content was 13.48 mg/100 g. Good budding, late tuber, moderate drought tolerance, non-moisture resistance, strong storage stability. High resistance to man-cut disease, not resistant to yam disease. Yield performance: In 1994 and 1995, Fujian sweet potato varieties joint regional trial, the average annual yield of fresh potato 2415.4 kg, an increase of 19.5% than the control of new species of flowers; dried potato average yield of 644.47 kg per mu, an average yield of 19.2% over the control. In 1998 and 1999, the regional test of sweet potato varieties in Jiangxi Province yielded an average yield of 2250.5 kilograms of fresh potatoes and an average yield of 670.2 kilograms of dried potatoes. Cultivation techniques: Chunshu is usually planted in mid-March in the middle of the month, with 3500 to 4000 mu per plant, and 4000 to 5,000 per plant in summer and autumn. It is suitable for cultivation in well-drained fields. Ditches should be drained in time in plains or on low-lying land. Fertilization mainly organic fertilizer, pay attention to the application of potassium. National Review Conference review opinion: After review, the variety meets the national sweet potato varieties validation standards, through the validation. It is suitable for planting in the non-dwarf cultivars in Fujian, Jiangxi, Hunan and Guangxi provinces.