Method of Propagating Euphorbia cerifera by Cuttings
As a unique species among tropical succulents, Euphorbia cerifera is beloved by gardening enthusiasts for its waxy leaves and sculptural branches. To successfully propagate Euphorbia cerifera through cuttings, mastering scientific methods is key. This article will systematically analyze the core techniques of the entire Euphorbia cerifera cutting process through practical aspects such as temperature control, branch processing, and substrate selection.
Precise Control of Environmental Parameters
1.1 Optimal Cutting Time Selection
Theoretically, Euphorbia cerifera cuttings can be implemented throughout the year, but observation data shows that when the temperature is stable within the range of 25±5°C, the formation speed of callus increases by 40%. From summer to early autumn (May to September) not only meets the temperature requirements but also aligns with the plant's natural growth cycle, cutting at this time can shorten the rooting period by 20%.
1.2 Temperature and Humidity联动 Management
Using temperature control equipment to maintain a day/night temperature difference of 28°C/22°C, combined with 60%-70% air humidity, can effectively prevent mold growth at the cut. It is recommended to use a seedling box with ventilation holes, ventilating for 1 hour each morning and evening to maintain air circulation.
Scientific Processing of Propagation Materials
2.1 Selection Criteria for Parent Branches
Select 2-3-year-old healthy parent plants and cut semi-lignified branches with a diameter of 0.8-1.2cm. Ideal cuttings should have: ① Retain 3-4 pairs of complete leaves ② Base with a 45° oblique cut ③ Apex with a growing point. Experiments have shown that cuttings with leaves have a photosynthetic efficiency 3 times higher than those without leaves.
2.2 Wound Treatment Technique
Immediately after cutting, seal the wound with wood ash and place it in a shaded area to dry for 48 hours until the cut is fully scabbed. This process can reduce the risk of bacterial infection by 83% and simultaneously stimulate the secretion of endogenous auxins.
Construction and Maintenance of Substrate System
3.1 Sterile Substrate Formula
It is recommended to use a mixed substrate of vermiculite: perlite: coconut bran = 3:3:4, which has the best water retention and breathability. The substrate should be sterilized with high-temperature steam before use, and the moisture content should be controlled to the state where it forms a ball when held and disperses when touched.
3.2 Intelligent Maintenance System
Insert the cutting to a depth of 1/3 of its length, using an intermittent misting system to keep the leaf surface moist. Install a lux meter to monitor light intensity, maintaining a scattered light environment of 5000-8000Lux. Spray a diluted solution of carbendazim (1000 times) every 3 days.
By following the above systematic operations, the survival rate of Euphorbia cerifera cuttings can reach over 92%. The key is to grasp the three principles of "precision in environmental parameters, standardization in material processing, and digitization in maintenance management." It is recommended to avoid fertilizing in the first 2 weeks after cutting, and only transplant to conventional culture soil when new roots reach 3cm, using slow-release fertilizer can significantly enhance the stress resistance of seedlings.