Breeding After the “Potato Potato No. 1†(Original No. 933-17) was used as the natural inbred seed for the 8911-3 (119-3 Dicicle) used by the Chongqing Three Gorges Agricultural Research Institute, it was cultivated by seedlings, and the offspring were selected. Comparison of product identification and breeding. In November 2001, it was approved by Chongqing Crop Variety Approval Committee, and was named "Potato Potato No. 1". Characteristics: The variety has a uniform and emergent seedling, strong seedling growth potential, plant type upright, plant height of about 60 cm; leaves, stems are green, complex leaves large, hair less and short, top leaflet heart-shaped, lateral leaflets 3 to 4 pairs Corolla white, medium in size, non-repetitious, stamens orange-yellow, pollen-free, easy to fall buds, weak natural strong, medium sized berries, green, with seeds. The potato is early and concentrated, and the tubers expand rapidly. The tubers are oblate and round, with pale yellow skin and white flesh. The epidermis is smooth, and the buds are shallow and less, more than 80% of the useful potatoes are resistant to storage. During the storage of the tubers, the potato skin is not easy to turn green. The quality is superior, the starch content is about 13%, the reducing sugar is 0.29%, and the crude protein is 2.61%. Precocious maturity, growth period 70-80 days, tuber dormancy longer (90-95 days). Anti-late blight, bacterial wilt and virus disease. Suitable for fresh potato consumption (especially in the suburbs as early maturing vegetables) varieties. Yield performance 2000 to 2001 participated in the regional test of new varieties of potato in Chongqing. The average output of fresh potatoes at 12 o'clock in the two years was 27,042 ?/hm2, which was an increase of 24.51% over the control variety "Mira" (the average yield was 21718.5 ?/hm2), and the yield was extremely significant. In the production test in Chongqing in 2001, the average output of fresh potato at 5 o'clock was 18,966 ?/hm2, which was 21.86% higher than that of the local promotion variety (average yield was 15,564 ?/hm2). Appropriate areas are suitable for different altitude areas in Chongqing, especially in the suburbs of the city as early-mature vegetable cultivation efficiency. Suitable for a quarter of cultivation, the second quarter for the cultivation of poor yield. Cultivation points Low dam and hilly areas in Chongqing can be planted in late November to early December to grow early-maturing vegetables; in middle and high mountain areas to be planted from late January to early February; high mountain areas can also be planted before frost . The suitable density for net production was 67.75-75,000 plants/hm2, and 1.7-2.0m plants were planted, and the double-planted density of potato and corn was about 45,000 plants/hm2. Apply base fertilizer, mainly organic fertilizer, increase phosphorus, potassium fertilizer. In general medium fertility soil, the base fertilizer is applied with calcium phosphate or compound fertilizer (without chlorine ion) 450-600 per hm2, pig manure water 30,000 tons, and heap slag fertilizer 1.5-2.0 million tons. After the seedlings were planted and weeded in a timely manner, top dressing was applied and 150-225 urea per hm2 and 30,000 ounces of pig manure were applied. When budding, shallow cultivating and earth-cultivation are carried out. According to the seedling condition, potassium dihydrogen phosphate is used for top dressing. To do a good job of forecasting and forecasting of late blight, once central diseased plants are found, they must be removed in a timely manner and chemical control should be carried out.
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