Chuanshu 294

The source is a hybrid combination of Jiangjin Wujianji used by the crop Institute of Sichuan Academy of Agricultural Sciences as the female parent and the inner yuan as the male parent, which has been selected, identified and tested for many years.

The characteristic is precocious and medium vine type. The plant type is semi-erect, the vine is about 100 cm long, the base branches are 5-8, the vine is about 0.5 cm thick, and the vine is purple and knotted purple. Top leaves purple; mature leaves green with purple, heart-shaped, medium-sized potato spindles, smooth potato skin, beautiful potato shape; light red potato skin, light orange potato meat; drying rate of 25%-28%, soluble sugar content of 7.1%, total sugar content of 29.6%, VC34 mg per 100g fresh potato, carotenoid 1.652 mg; cooked food flavor is strong, sweet, soft, is currently the best variety of edible and food processing in the province. Precocious, can be harvested 90 days after planting, strong resistance to black spot, good storability.

The yield showed that in the precocious group of the provincial regional trial in 1994, the yield was harvested 100 days after planting, and the average yield of fresh potato per mu was 1349.7 kg. An increase of 1.8% in 1995 in the precocious group of the regional trial, the average yield of fresh potato per mu was 1567.6 kg, an increase of 1.3%; in 1996, the precocious group was harvested 100 days after planting, with an average yield of 1240.9 kg per mu and an increase of 3.8%. On average for three years, the yield of fresh potato per mu was 1375.9 kg, an increase of 2.2%. In the production test in 1997, the average yield of fresh potato was 1104 kg per mu, with an increase of 17.3%.

Key points of cultivation: early sowing and early planting, early application of basal fertilizer and seedling fertilizer: raising seedlings in early March and cutting in the first and middle of May. The planting density of ② is more than 4000 plants per mu. In order to improve the marketability of potato cubes, ③ can soak the seedlings with 500x trichlorfon aqueous solution to prevent insect and rodent damage.

Suitable planting areas are suitable for areas with better fertilizer and water conditions, with emphasis on suburbs and areas with food processing needs, and can also be planted as autumn potatoes.