Brief explanation of Seedling raising technique of lobular Ligustrum lucidum

Lobular Ligustrum lucidum belongs to Oleaceae, Ligustrum lucidum, evergreen or semi-evergreen shrubs. Also known as small leaf holly, small ash tree. It is a hedge material in the garden, and can be used as the rootstock of sweet-scented osmanthus, cloves and other trees. Strong sex, cold tolerance; strong root tillering; resistance to pruning. It can be propagated by sowing, cutting and ramet, but mainly by sowing.

First, sowing and raising seedlings

It can be harvested when the drupe is purple-black from October to November, and sow immediately after harvest, or it can be dried and stored in the sun to sow in March of the following year. Soak the seeds in warm water for 2 days before sowing, and sow the seeds after soaking. Using strip cutting, strip spacing 30CM, sowing width 5-10CM, deep 2CM, covering fine soil after sowing, and then covered with straw. Pay attention to watering and keep the soil moist. After the seedlings are unearthed, the straw is removed step by step, and thin fertilizer can be applied when the branches and leaves are slightly developed. When the seedling height is 3-5CM, it can be interseedling, and the plant distance is 10CM. Seedlings generally grow slowly and can be used as hedges at the age of 2 years.

Second, cuttage seedling

The cutting time is 3m / m / 4 or August / September. At the beginning of winter, the branches of the same year were cut into 15-20CM, and then stored in sand. After 4 months of sand storage, the healing tissue could be formed. When the cuttings were cut in spring in the following year, it would be easier to survive, and the survival rate would be doubled after soaking the branches with naphthylacetic acid. The row spacing of cuttings is 20 × 30CM, and the depth is 2 × 3 of cuttings. Water frequently after insertion to maintain proper humidity. Cuttings stored in sand can take root after being planted in spring for a month. Autumn cutters can not take root in that year, but only form healing tissue in winter and can not take root until the following spring. It will be managed for one year after survival, transplanted before germination in the spring of the following year, and can be used as rootstocks in the third year. If you want to obtain the grafting rootstock one year earlier, you can select the sturdy annual branches in autumn, cut the cuttings with about 25CM, and cut them according to the row spacing of 30 × 30CM in the following spring after sand storage, which can take root and survive in the same year, and can be used as the grafting rootstock in the second year.

(3) Seedling raising by separate plants

After cutting the roots and tillers in spring, they were planted in the seedling field and watered when they were planted.

IV. Upbringing and management

It is suitable for transplantation from February to March in spring and in autumn. Need to bring earth balls, planting should not be too deep. For example, when planting, fertilize at the bottom of the hole to promote growth. If it is used as a hedge, it can be pruned properly and pay attention to pruning withered and diseased branches. The main pests are green insects, blow cotton shell insects, etc., and attention should be paid to prevention and control.