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Schisandra chinensis asexual propagation and seedling raising: Rootstock method for green-branch cleft grafting
For the cultivation of rootstocks for green-branch cleft grafting, refer to open-field direct seeding for seedling raising. If the rootstocks are not dug out before winter arrives, pruning must be carried out before the ground freezes. Leave 3 to 4 buds on each rootstock and cut at about 5 cm, then water thoroughly with winter-protection water to prevent freeze damage and drying out. If the rootstock seedlings are to be planted out the following year, the seedlings can be dug out and stored in cellars or trenches, which is more beneficial for rootstock seedling management. When planting out the following year, they also need to be cut back to 3 to 4 buds to establish the trunk. Rootstock seedlings that overwinter in place should be irrigated promptly after the ground thaws the following year and given a topdressing of quick-acting nitrogen fertilizer to promote new shoot growth. Keep 1 to
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Hardwood cleft grafting method for asexual propagation and seedling raising of Schisandra chinensis
After leaf fall and before bud break, collect 1-year-old branches as scions; before the ground freezes, lift 1- to 2-year-old seedling stock as rootstock, and store them at low temperature for cleft grafting during the next year's bud break period (or graft in place without lifting the seedlings). Before grafting, soak the scions and rootstocks in clean water for 12 hours. Cut off the bud-bearing portion at the hypocotyl of the rootstock. For scions, choose fully mature branches with a diameter greater than 0.4 cm, cut them to a length of 4-5 cm, keep 1 bud eye, leave 1.5 cm above the bud, and keep about 3 cm below the bud; use a grafting knife to cut down on both sides of the scion bud eye
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