Breeding improved varieties of Angelica sinensis

Select fresh seeds that bear fruit in the second year after transplanting, with plumpness of 70%, 80%, clean, tooth-free and wound-free seeds.

The nursery land selected leeward, shady hillside or wasteland, turned over the land in late May, turned the burned weeds and shrub ash into the soil, and then raked flat to make a high border, 1.2 meters wide. Sow the seeds from the first ten days of June to the last ten days of June. Soak the seeds in warm water of 30 ℃ for 24 hours before sowing. After drying, cover the seeds tightly and cover them with weeds. The sowing amount is 4-5 kg per mu. The seedlings emerge about half a month after sowing, and the cover grass will be loosened at this time to prevent the seedlings from being hurt when uncovering the grass. Uncover the grass at the beginning of August. Weeds should be removed to keep weeds free in the field. Combined with weeding seedlings, it is appropriate to remove the weak and stay strong, and the distance between plants should be about 1 cm.

When the plant in the nursery grows to 30-50cm high, the remaining plant is selected. The seed selection criteria are pure seedling seeds, dark green leaves, wrinkle-free night, no spots, robust plant growth and no diseases and insect pests.