The scientific methods for propagation of Camellia are as follows: 1. From the beginning of June to the end of August, the robust semi mature and current year branches of 5-year-old trees were cut into 5-10 cm long segments, with about 3 small leaves on the upper part and an oblique shape on the lower end. The branches were inserted into the culture soil (2 parts of garden soil, 5 parts of sandy soil, 1 part of rotten leaf soil and 2 parts of peat) with a depth of 3 cm. The culture soil was compacted, watered, covered with plastic film and maintained in a cool and ventilated place.
② Single bud cutting method. Before bud sprouting, cut the strong branches in the middle and upper part of the crown, cut the leaves with full axillary buds, cut the axillary buds with xylem about 0.5cm from the lower part of the leaf axillary, immediately immerse the incision in 200 times of NAA solution for 5 seconds, take them out, insert them into the sterilized sand bed, water them, and spray water once a day.
③ Cutting method. From early spring to late autumn every year, 2-year-old robust Camellia seedlings were selected as rootstocks and split into 0.6-0.7 cm deep gaps. Then, the prepared wood scion with 2 leaves and wedge-shaped lower part was inserted into the gap of the rootstock and aligned with the cambium of the two. Finally, it was tied tightly with plastic tape and maintained in the shade.
④ The connection method. Abutting grafting is generally used for cutting and other grafting methods which are difficult to survive or slow to take root. It is generally carried out from late May to mid June. 4-5-year-old Camellia seedlings were selected as rootstock and 2-3-year-old branches as scions. 3-5 cm long cortex was cut off at the smooth part of the rootstock, and the same size section was cut at the smooth part of the scion with the same height as the rootstock. The cambium of the two was closely attached and tied tightly with plastic tape. After the grafting survived, the scion was cut off from the parent from the lower end of the union, and the upper branches of the rootstock were cut off and put in the semi shade place for maintenance.