Split time: it is better to thaw the soil in early spring (February and March).
Division method: after the mother plant is taken out from the flowerpot, shake off the extra basin soil, separate the coiled roots as much as possible, and use a sharp knife to cut it into two or more plants, each of which should have more roots, and properly prune its leaves to reduce water transpiration, so as to facilitate survival.
Potting and disinfecting: soak the separated small plant in the solution 1500 times of chlorothalonil for five minutes, then take it out and dry it, then it can be potted. You can also fill the root with chlorothalonil immediately after serving.
Management after plant division: after plant division and potting, it is necessary to irrigate roots or water once. Because its root system is severely damaged and its water absorption ability is very weak, it takes about 3~4 weeks to restore the new root. Therefore, it should be watered to avoid root rot within 3~4 weeks after the ramets, but its transpiration is not affected. In order to maintain the water balance of the leaves, it needs to spray 1~3 times a day (high temperature, high spray, low temperature, little spray or not). Spray). Do not fertilize at this time. After splitting, we should pay attention that the sunlight should not be too strong, and try to put it in the shade shed for maintenance.
Upper basin: when the seedlings are loaded into the basin, first place a 2-3cm thick coarse-grained substrate or ceramsite at the bottom of the basin as the filtering layer, and sprinkle a layer of fully decomposed organic fertilizer as the base fertilizer, with a thickness of about 1-2cm, then cover a layer of substrate, with a thickness of about 1-2cm, and then put the plants to separate the fertilizer and the root system, so as to avoid burning the root.
The substrate for the upper basin can be one of the following. Vegetable garden soil: slag = 3:1, or garden soil: medium coarse river sand: sawdust = 4:1:2, or one of paddy soil, pond mud, rotten leaf soil. Or peat: Perlite: ceramsite = 2:2:1; garden soil: slag = 3:1; peat: slag: ceramsite = 2:2:1; sawdust: vermiculite: medium coarse river sand = 2:2:1. After the basin is filled, water shall be poured once to make it permeable, and it shall be maintained in a shady environment.
The petiole of tender stem or undeveloped leaf is often used as explant. After regular disinfection, the petioles were cut into 3 mm segments under sterile conditions, the young stems were cut into 3 mm segments with nodes, and then inoculated on the culture medium to induce callus and adventitious bud formation, and new plants were formed after culture.
