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Detailed Explanation of Key Cultivation Techniques for Pushu No. 25 Sweet Potato
The autumn crop of Pushu No. 25 has a whole growth period of 130-150 days, and is suitable for autumn planting in both irrigated and dry land in our province. (1) Because temperatures above 35°C tend to cause hollow tubers, it is not suitable for spring planting. (2) Apply sufficient organic matter as basal fertilizer. (3) Timely control of leaf-feeding pests such as the sweet potato hornworm and the tobacco cutworm. (4) Harvest at the appropriate time.
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Introduction to the Characteristics of the Pushu 503 Sweetpotato Variety
Pushu 503 is a new high-quality sweetpotato variety for both table use and food-processing raw material, bred by hybridizing two typical high-quality varieties from China and abroad (Dananfu X American L4-5). It was approved in 2001 by the Putian City Crop and Livestock Variety Approval Committee. Characteristics: Pushu 503 is a short-to-medium-vine, semi-erect type, with more branches per plant, medium stem thickness, heart-shaped leaves, and both stems and leaves green. Each plant sets 3-4 tubers, the storage roots swell relatively quickly in the early-to-mid stage, medium-sized tubers predominate, the tuber shape is downward spindle, the tuber base has a small soft tail root
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Introduction and Characteristics of the Pushu No. 25 Sweet Potato Variety
Characteristics: purple terminal leaves, shallow compound leaf shape, purple veins, green stems, semi-upright plant form, orange-yellow skin, orange-yellow flesh, spindle-shaped and fairly attractive tuberous roots, good storability, poor sprouting ability. Dry matter rate 28.27%, eating quality score 78.3 points, starch rate 15.43%, vitamin C content 25.23 mg per 100 g, carotene content 9.66 mg per 100 g. Moderately resistant to sweet potato bacterial wilt. In the 2002 and 2003 provincial high-quality group regional trials, the average fresh tuber yield was 1832.2 kg per mu, a 15
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Introduction to the characteristics of the Pushu 23 sweet potato variety
Variety approval number: Guoshen Shu 2002005 Crop type: Sweet potato Variety name: Pushu 23 Breeding unit: Puning Agricultural Science Research Institute, Guangdong Province Variety source: Female parent: Guangshu 87-58; Male parent: Pushu 17-1. Provincial approval status: Approved in 1997 by the Guangdong Provincial Crop Variety Approval Committee. Characteristics: Plant type semi-erect, top leaves purple, leaves pointed heart-shaped, leaves medium-sized, veins green, stems with purple, stems relatively thin, short vines with many branches, vine length 95-120 cm, branches per plant 12-16, tubers swell downward, tuber skin earth-yellow, tuber flesh yellow, sweet taste, attractive and smooth tuber shape, high marketable tuber rate, good storability and sprouting ability. Early maturing, generally tubers form in 25-30 days, harvested in 120-130 days. Dry matter rate 29.25%, taste score 79.7, slightly lower than the control, starch rate 18.07%, vitamin C content 22.17 mg/100 g. Identified by the Puning Agricultural Science Institute of Guangdong Province, resistant to sweet potato bacterial wilt in the field, indoor inoculation identification showed highly susceptible to group I, moderately susceptible to group II, moderately susceptible to vine-cutting disease.
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