MySheen

How to propagate Osmanthus fragrans

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, If you do not pay attention to pruning and shaping for a long time, the cultivated sweet-scented osmanthus will grow into a deformed tree. For this kind of tree, it should be pruned pertinently. (1) plants that are very tall and lack of branches and leaves in the lower part of the trunk can be amputated from the upper part of the trunk, such as 2 / 3 or 3 / 4, to promote new branches in the lower trunk. It is found that there are many branches and positions in the coming year.

There are many propagation methods of sweet-scented osmanthus, such as grafting, striping, cutting and so on. Grafting propagation rootstocks can use privet, lobular privet, white wax and tassel and so on. When propagating in large numbers, lobular privet is often used in the north. Before sprouting in spring, cut the rootstock from 5 cm above the ground, cut the 1-to 2-year-old sturdy branches of sweet-scented osmanthus 10 to 12 cm long, and cut both sides of the base into a 45-degree slope. Cut longitudinally at about 1/3 on one side of the rootstock, 2 to 3 cm deep. Insert the scion into the incision, align the cambium, bind it tightly with a plastic bag, and bury it in the soil. Using lobular privet as rootstock has high survival rate and fast growth, but it is easy to form the phenomenon of "small feet". Potted sweet-scented osmanthus is often used by grafting, with tassel as rootstock. Grafting should be carried out in the growing season, select scions and rootstocks with similar branch thickness, cut into prismatic incisions in the appropriate parts of the scion, reaching to the xylem. Cut a cut consistent with the size of the scion on the rootstock, lean the two interfaces together, connect the forming layer closely, and fasten it with a plastic strip. After healing, cut off the rootstock on the interface and the scion below. Before cutting propagation sprouts in spring, select one-year-old developed branches and cut them into 5 to 10 cm long. Cut off the lower leaves, leave 2 to 3 leaves in the upper part, and insert them in the river sand or loess seedbed with a row spacing of 3 × 20 cm. Irrigation shade in time after insertion, keep the temperature from 20 ℃ to 25 ℃, relative humidity 85% to 90% can take root for 2 months. Striping propagation is divided into two types: low pressure and high pressure. Under low pressure, the low-branched or tufted mother plant of sweet-scented osmanthus should be selected. From spring to early summer, the branches of the lower 1-2-year-old flexible parts should be cut or girdled with a sharp knife to reach the xylem, pressed into grooves 3 to 5 cm deep and fixed with wood strips. In the high-pressure method, 1-2-year-old branches were selected from the mother tree in spring. after girdling, the wound was wrapped in a culture medium and fastened in a plastic bag. In the process of culture, the substrate was kept moist all the time, and the roots were cut off from the mother plant in autumn. Click to get more sweet-scented osmanthus planting techniques

 
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