1) Jinghong five inches (F 1). Kuroda five-inch hybrid, growth period 100 days, middle and early maturity, three red varieties. Root length 18-20cm, diameter 5-6cm, columnar, good quality, strong disease resistance, high yield, more than 5000kg per mu, suitable for cultivation in summer and autumn in China. (2) Shimomura (F 1). Bright red five-inch hybrid, growth period 100 days, middle and early maturity, three red varieties. Heat and drought tolerance, strong disease resistance, suitable for summer sowing; Columnar, high yield and good quality; The root length is 20 cm, the diameter is 5 cm, the single root weighs 250 g, and the yield per mu is more than 4500 kg. (3) Increase the daylight saving time by five inches (F 1). Sanhong, a summer scarlet hybrid, has a growth period of 100- 105 days, and is middle and early maturing. The root shape is neat and consistent, cylindrical, careful and good in taste; The root is 5 cm thick and 20 cm long, and the single root weighs 260 grams; Excellent quality, it is an ideal variety for fresh food and processing, with an yield of more than 5000 kg per mu; Heat and drought tolerance, suitable for cultivation in summer and autumn in most parts of China. (4) Chunhong 1 (F 1). Spring King Kong five-inch hybrid, growth period 105 days, middle and early maturity; Strong bolting resistance, suitable for spring sowing and summer and autumn planting in China; Sanhong variety. Cylindrical, length 20 cm, diameter 5 cm, single weight 250 g; Strong resistance, fleshy roots swell and color well at low temperature; High yield, more than 4500 kg per mu. (5) Chunhong 2 (F 1). Hongfu five-inch hybrid, with a growth period of 90 days, is a very early-maturing and heat-resistant variety, suitable for spring and summer cultivation; Sanhong variety. The root shape is neat and columnar; Good quality and taste, suitable for fresh food and processing; Suitable for planting in the main carrot producing areas in China, with an yield of more than 4500 kg per mu. (6) Red Core 1 (F 1). Kuroda five-inch hybrid, growth period 100 days, is an early-maturing variety; Sanhong variety, columnar and meticulous; The root length is 2 1 cm and the diameter is 5-6 cm, which is heat-resistant and drought-resistant, and suitable for cultivation in summer and autumn in main producing areas of China. Carotene has high content and good quality, so it is an ideal variety for fresh food and processing. Disease resistance and high yield, with an yield of more than 5000 kg per mu. (7) Hong Xin II (F 1). Juyang five-inch hybrid, growth period 100 days, is an early-maturing variety; Sanhong variety. Cylindrical, but be careful; The root length is 20 cm, the diameter is 5-6 cm, and the average single root weight is about 250 g; Heat and drought tolerance, low abnormal root rate; Disease resistance and high yield, 5000-6000 kg per mu. (8) Hong Xin III (F 1). King Kong five-inch hybrid, with growth period of about 105 days, medium and early maturity, suitable for sowing in summer and autumn in China; Good quality and taste, suitable for both fresh food and processing; Sanhong variety, columnar and meticulous; 20 cm long, about 5 cm thick roots, and the yield per mu is more than 5000 kg. (9) Hong Xin No.4, a hybrid bred by Vegetable Research Center of Beijing Academy of Agriculture and Forestry Sciences, has dull root and tail meat, smooth appearance, bright red skin, flesh and heart, and no obvious cambium. Fleshy root length18-20cm. 5 cm in diameter and 5 cm thick. The mass of a single root is 200-220g. (10) The hybrid bred by Vegetable Research Center of Beijing Academy of Agriculture and Forestry Sciences has smooth and tidy fleshy roots, blunt and round tail, bright red skin, flesh and core, and thin core column. The root length is 20 cm, the root diameter is 5 cm, and the single root weight is about 220 g. (1 1) Hongxin 6. Hybrid, the aboveground part grows vigorously but not vigorously, and the leaves are dark green; Growth period 105 ~ 1 10 days, strong bolting resistance, suitable for sowing in the open field in most parts of China or overwintering cultivation in small arch shed in the south. The fleshy roots are smooth, neat and columnar; The skin, meat and heart are bright red, the heart column is thin and the taste is good; The fleshy root is 22 cm long and 4 cm thick, and the single root weighs about 200 grams. The yield of 667m2 is about 4000kg, and the carotene content is 3-4 times that of the five-inch new black field. The total carotene content is 140- 170 mg/kg, of which the β-carotene content is 100- 120 mg/kg, which is ideal for fresh food processing. (12) Japanese Red Yongren No.2 carrot. The skin and core are bright red, and the rate of "three reds" is high. Rhizome length 18-20cm, root weight 200-250g ... (13) Dehydration and drying special variety Tianhong No.2, epidermis, phloem and pith are red, root length18-20cm, root diameter 3-4cm and average root weight/kl. The above contents and suggestions are for reference only.