Grafting and Management of Modelling Gold Ligustria lucidum
Golden leaf Ligustrum is golden in color and bright in leaves. It is used to arrange moulded flower beds and large color blocks. In order to enhance the ornamental quality of the gold leaf privet, you can try to use the big leaf privet as rootstock, through the method of grafting to cultivate it into a spherical, cloud-like, layered distribution, embellishment in the green area or planted on both sides of the road is very good.
First, grafting time. Spring and autumn are the best seasons for grafting.
1. Spring connection: When the sap begins to flow from March to April, the time from grafting to survival is the shortest, and the survival rate is high. Available splicing, cutting, abdominal, subcutaneous connection. The speed of grafting under the skin is fast, and the survival rate is high. It is a grafting method commonly used in nurseries in recent years.
2, autumn: generally use buds. T-shaped buds are picked up from June to August, while budding buds are made from August to September in late summer and early autumn. T-shaped budding is easy to use and has a high survival rate. It is the most commonly used budding method.
Second, rootstock. The gold leaf privet is best used as a rootstock with a diameter of more than 3 cm. Large stocks of rootstocks have more accumulated nutrients, high grafting survival rate, and rapid growth of grafted seedlings, which is more conducive to rapid prototyping. According to the requirements of the modeling, choose different specifications of the stock and different grafting heights. Rootstocks with a diameter of 3 to 4 cm in diameter can be cut to 1 meter and grafted. Large-sized stocks can be cut to about 2 meters. Different height shapes adapt to different landscape requirements.
1, layered modeling: rootstock to choose dry type, straight and smooth branching high point of the big privet privet. Grafting at different heights. The first layer is about 40 centimeters from the ground, and the rest of the layers are 50 to 60 centimeters apart. The top few layers can be appropriately narrowed and each layer is grafted with 3 to 4 branches. This is more conducive to rapid molding after grafting.
2. Cloud shape: It is required that the rootstock be naturally curved and grafted at each bending point. After being alive, it is pruned into pieces and is very natural. Bud grafting requires that the big privet is at an appropriate height, leaving 4 to 5 branches as an anvil. Evenly distributed, grafting on each branch facilitates molding.
Third, scion. To select the periphery of the crown, fine, uniform, pest-free, robust shoots are used as scions. It is better to pick and pick it up, which is more conducive to survival. If it cannot be followed by picking and picking, the scion must be stored in a place with relatively low temperature and relatively high humidity after storage, and the leaves will be cut off, leaving only the petiole.
Fourth, grafting. Here are two commonly used grafting methods: subcutaneous and T-shaped budding.
1. Under the skin: (1) The oblique system of the rootstock. The rootstock is cut dry, flattened in section, and a knife is cut diagonally at the edge of the section, reaching deep into the xylem. Noodles are smooth, smooth, and fast. Under the cut-off, the skin is cut longitudinally and reaches deep into the xylem. The cut noodles are shorter than the scion noodles. (2) Cutting the scion. Cut a knife at the lower side of the scion, about 3 to 4 centimeters, then cut a knife at the side, about 2 centimeters. Peel the anvil skin layer, face the large scion of the scion to the xylem of the rootstock, and plunge into the skin. Spike to leave about 0.5 cm white, will form a layer alignment, hand-painted grafted parts, scion top. Membrane tightly tied to prevent seepage into the rain.
2, T-shaped buds: (1) cut stocks. The rootstock cuts a T-shaped deep xylem incision at a suitable height of the epidermis, the incision being 1 cm laterally and 3 cm longitudinally. (2) Cutting the buds: When cutting the buds, hold the shoots sideways so that the buds are downward, and select the strong buds in the middle of the shoots. From the top to the bottom of the buds (upwards from the buds, the buds are slightly upward). Cut to 2 cm from the other end of the bud, and then cross-cut a knife into a shield bud. The newly cut T-shaped incision on the rootstock was picked up, and the buds of the scion were inserted so that the upper transverse incision of the bud and the transverse incision of the rootstock were all in close contact and then tied. Buds usually heal in a month or so.
V. Management after Grafting
1, check the survival: Buds usually check the survival situation after about 15 days after the hand, touch the petiole by hand, that is, shedding, where the buds become dark, petiole is not easy to fall, then not survived. For those who did not receive the livelihood, they should make up immediately. If the branches are not survived, a robust branch shall be selected from the sprouts of the rootstock for cultivation, and the rest of the buds shall be cut off.
2. In addition to sprouting: In order to concentrate the nutrient supply interface to heal and promote the robust growth of the harvested shoots, the buds and sprouts on the rootstock should be cut off at any time.
3. Releasing the tied objects: When it is confirmed that the grafting is alive, remove the binders in time to prevent the plants from thickening the tied binders into the cortex and affecting the growth. Buds will generally be released after 20 days or so. Do not untie the tie prematurely to facilitate budding for the winter. It is best to remove the binder when the shoots grow to more than 20 cm. Too early to untie can cause water loss in the interface and affect survival. Moisturizing with plastic bags, timely ventilation, cooling, and then gradually removed.
4. Cutting the anvil: After the buds have survived, cut the rootstock branches above the buds to cut the anvil. Buds should be cut in the spring and early autumn before budding. In the early spring and summer, buds can be cut immediately at the time of grafting or immediately after budding. The cuts of the anvil cut 0.3 to 0.5 cm above the sprouts and tilt slightly toward the back of the bud. Excessive clippings will affect the healing of the section, and if it is too low, it will harm the grafting, which is not conducive to germination and shoot growth.
5. Standing pillars: In spring windy areas, to prevent the new shoots from being blown away by the wind, when the new shoots grow to 20 to 30 centimeters, they should be set up to be tied with a rope and fixed. Pay attention to the new shoots should not be too tight, so as not to hurt the new shoots.
6, other management: mainly including grafted seedlings pest control, fertilization irrigation, cold, etc., can refer to Daejeon seedling management techniques.
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