What are the propagation methods for Chinese mahogany (Toona sinensis)? Explained clearly in one article

Because the leaves of the Chinese mahogany tree (Toona sinensis) are edible, many gardening enthusiasts want to grow one themselves, but since they now live in cities, buying seedlings is not easy, so propagating from an existing Chinese mahogany tree is the best choice. Currently, the propagation methods for Chinese mahogany include seed sowing, root sprout division, root cuttings, and stem cuttings.
Seed propagation method for Chinese mahogany
If uniform growth of Chinese mahogany seedlings is desired, seed sowing is the most effective method and also the most commonly used method. Seedlings grown from sowing have an obvious taproot and grow vigorously. Before sowing the seeds, it is best to first soak them in water at 20°C-30°C for 12 hours. After soaking, take them out, rinse them clean with fresh water, and place them in a bag to promote germination, maintaining the temperature at around 25°C. Once the seeds sprout, they can be sown. Sowing is generally carried out between April and May, and by autumn and winter the seedlings can be transplanted. During seedling cultivation, attention must be paid to the occurrence of root rot.
Root sprout division propagation of Chinese mahogany
Dig trenches around the tree canopy and cut roots about 1 cm in diameter to stimulate the growth of root sprouts. When cutting the roots, care should be taken not to damage the larger root system. After cutting the roots, cover them with soil, and apply decomposed organic fertilizer at the appropriate time to promote the growth of root sprouts and the plant. About 2-3 root sprout seedlings can be produced each year.
Root cutting propagation method for Chinese mahogany
Take roots about 0.5-1 cm in diameter and cut them into cuttings 10-15 cm long, with the thicker end flat-cut facing upward and the thinner end slant-cut facing downward. The cuttings can be soaked for 30 minutes in a 0.4% butyric acid solution diluted 1000 times, or dipped in 0.1% BA powder before planting. After treatment, insert the cuttings deeply into a sand bed. To maintain a temperature of 25°C-30°C and a humidity of 75%-80% RH, they can be covered with transparent plastic sheeting. After sprouting, keep only one bud per cutting, and once they grow to about 30 cm they can be transplanted.
Stem cutting propagation of Chinese mahogany
Cutting propagation is generally carried out from April to June. Take current-year, semi-lignified branches and cut them into pieces about 15 cm long, then insert them into a sand bed. To increase the survival rate, the cuttings can be soaked for 30 minutes to 1 hour in a 0.4% butyric acid solution diluted 1000 times, or dipped in 0.1% BA powder before planting.