2. The shell of mature Toona sinensis seeds is cracked, and the seeds inside are triangular. Toona sinensis seeds should not be stored at room temperature, especially in hot summer, which will greatly reduce the germination rate of seeds. Therefore, when buying Toona sinensis seeds, you must buy seeds preserved at low temperature, buy them and bottle them in the refrigerator.
3. Soak Toona sinensis seeds in clear water for 24 hours, pour off the water, drain the seeds, put them in a flat plastic plate, and cover them with a wet towel.
4. Planting Toona sinensis buds on the balcony, spraying water once a day to keep the epidermis of Toona sinensis seeds moist, and the seeds can germinate after three days.
5. Spread 2-3 layers of paper towels on the bottom of the flat plastic tray, evenly spread the sprouted Toona sinensis seeds on the paper, spray water 1-2 times a day, and keep the temperature at 18-25℃.
6. Toona sinensis buds are planted on the balcony for about 3-4 days, and the small buds from Toona sinensis seeds grow to 2-3 cm.
7. If it is the first time for you to plant Toona sinensis buds on the balcony and it is difficult to control the moisture of Toona sinensis buds, you can use perlite instead of paper bed, which will greatly reduce the difficulty. Perlite can be bought from building materials stores.
8. Soak perlite in water, lay it flat in a container, and spread the germinated Toona sinensis seeds evenly, which can keep water supply for a long time.
9. After sowing on the balcony for 7-8 days, the Toona sinensis buds have stood upright and covered the bottom of a flat plastic plate.
10. At this time, strong light is needed. Toona sinensis buds planted on the balcony should be kept in direct sunlight every day. On day 10- 12, the leaves of Toona sinensis seedlings spread out under strong light, turned green in color and grew faster.
After sowing 1 1 and 15 days, the seedlings were dark green, with a height of 7- 10 cm, flat leaves, plump and plump heart leaves, which reached the harvesting standard.