What Trees Can Be Grafted onto Camellia oleifera
Camellia oleifera, as a high-quality rootstock resource,凭借 its strong resistance to adversity and wide adaptability, holds an important position in the field of horticultural grafting. This article will systematically analyze the grafting compatibility schemes and detailed operation procedures of Camellia oleifera through a combination of text and images, helping growers achieve the cultivation upgrade of high-quality camellias.
Core Advantages of Grafting Camellia oleifera
Preferred Compatibility Trees
Experimental data show that Theaceae plants have 98% compatibility with Camellia oleifera. Among them, Camellia japonica is the preferred scion, with a survival rate of over 85% after grafting. The grafting combination can significantly enhance the plant's cold resistance, expanding the tolerance temperature range from -5°C to -10°C.
Golden Grafting Period
When the daily average temperature is 25-28°C in June and July, the cambium cells of Camellia oleifera are active, and the healing speed of grafting wounds is 40% faster than in spring and autumn. It is recommended to operate in the early morning when the humidity is over 70%.
Camellia oleifera Grafting Operation Guide
Rootstock Selection Criteria
Select healthy parent trees aged 15-35 years, requiring a main trunk diameter greater than 8cm and retaining 5-7 evenly distributed lateral branches 2-5cm in diameter. Use 75% alcohol to disinfect pruning shears, and perform flat stubble treatment 10cm away from the main trunk.
Scion Treatment Process
Select semi-woody branches from one-year-old Camellia japonica parent plants, cutting 15cm scions with 3-4 full buds. Use wax sealing to treat the cut surface and wrap the base with wet moss, which can extend the preservation period of scions to 72 hours.
Core Technology of Wedge Grafting
Shape the cut surfaces of the rootstock and scion into 2cm long horse ear shapes, align the cambium layers, and bind with elastic film. Focus on sealing the joint area, keep the bag at 85% humidity, and check the formation of callus after 20 days.
Key Points of Post-Grafting Maintenance
Gradually increase the light intensity after survival, and remove the binding tape after 45 days. Timely remove the suckers from the rootstock and apply phosphorus and potassium fertilizer monthly to promote the lignification of the scion. In the following spring, you can shape the tree canopy to cultivate the ideal plant shape.
Through scientific grafting management, Camellia oleifera can achieve rapid propagation of excellent varieties. It is recommended to establish a growth record after grafting, recording key data such as the time of scion leaf expansion and the length of new shoots, providing a basis for subsequent optimization. Mastering this technology can enhance the horticultural value of camellias and create higher economic benefits.