What are the breeding methods of Lagerstroemia indica?

The seeds of Lagerstroemia indica are collected in autumn and stored in a dry warehouse, and sown in spring. Soak the seeds in warm water for about 4 hours before sowing, and use wet sand to accelerate germination. After sowing, cover with fine soil about 1 cm, and when there are 1 ~ 2 pairs of leaves, move them into a container with a diameter of about 8 cm for cultivation. After growing up, move into a container with a diameter of 20 ~ 27 cm for culture. Seeding seedlings usually bloom in the second year, and some bloom in the same year.

Cutting propagation with hard branches in spring. Before germination, select 1 year-old robust branches as cuttings. Cuttings with a diameter of 0.5 ~ 1 cm are the easiest to take root, and branches over 3 years old can also be propagated by cutting. The cutting length is about 15 cm, and the lower end is cut into oblique mouth and the upper end is cut into flat mouth. In order to improve the survival rate, the cutting substrate was soaked in 50 mg/kg NAA solution for 65438 02 hours or in clear water for 2 ~ 3 days. The cutting depth is about 1/2 of the cutting length, leaving 1 ~ 2 internodes on the ground. Rooting takes place about 1 month after cutting. In summer, branches with high degree of semi-lignification are used as cuttings, and the cuttings are cut to a length of about 15 cm, and the lower leaves are removed, leaving 2-3 upper leaves, which are moisturized and shaded after cutting. It can also be propagated by dividing plants and layering.