Introduction to the grafting method of Ligustrum lucidum

Ligustrum lucidum (details) is a common foliage plant, which is often used to decorate the flower beds in the green space or on both sides of the road, with good results. In general, Ligustrum lucidum can be cultivated into spherical, flaky and layered distribution by grafting. The editor will introduce you to the grafting method of Ligustrum lucidum.

Ligustrum lucidum (details)

First, grafting time. Spring and autumn are the best seasons.

1. Spring grafting: 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. Split grafting, splicing, abdominal grafting and subcutaneous grafting are available. The speed of subcutaneous grafting is fast and the survival rate is high, which is a common grafting method in nursery in recent years.

2. Autumn grafting: generally, budding is used. T-shaped bud grafting was carried out from June to August, and sticking bud grafting was carried out from August to September in late summer and early autumn. T-shaped bud grafting is the most commonly used bud grafting method because of its simple operation and high survival rate.

Second, scion. To choose the periphery of the crown, fine and uniform, disease-free and pest-free robust branches as scions. It is best to pick up as you pick it up, which is more conducive to survival. If it can not be picked and picked, the scion should be stored in a place with low temperature and relatively high humidity after harvest, and the leaves will be cut off, leaving only the petiole.

Third, grafting. This paper introduces two commonly used grafting methods: subcutaneous grafting and T-shaped bud grafting.

1. Subcutaneous grafting: oblique system of ⑴ rootstock. Cut the rootstock dry, flatten the cross section, and use a knife to cut obliquely at the edge of the cross section, reaching deep into the xylem. The cutting surface is smooth, smooth and fast. Cut the skin longitudinally under the cutting edge, reaching to the xylem, and the cutting surface is shorter than that of the scion. ⑵ cuts the scion. Cut one knife at the lower end of the scion, about 3 to 4 centimeters, and then one knife on the side, about 2 centimeters. Peel off the cortex of the rootstock, face the large cutting surface of the scion towards the xylem of the rootstock, and cut into the cortex. The cuttings should be left blank about 0. 5 cm, align the cambium and smear the grafting site and the top of the scion with hand oil. Bind it tightly with plastic film to prevent infiltration of Rain Water.

2. T-shaped bud grafting: cutting of ⑴ rootstock. The rootstock cuts a T-shaped incision up to xylem at an appropriate height of smooth epidermis, 1 cm horizontally and 3 cm longitudinally. ⑵ cutting buds: when cutting buds, it is appropriate to hold the branches sideways to make the buds go down, choose the strong buds in the middle of the branches, cut a little wood longitudinally from the buds 1 cm away from the buds (from the bottom of the buds up) to 2 cm from the other end of the buds, and then cut a knife to form a shield-shaped bud slice. Pick out the newly cut T-shaped incision on the rootstock, insert the bud piece of the scion, and close the upper transverse incision of the bud piece with the upper transverse incision of the rootstock, and then bind it. Generally, budding can be healed and survived after about a month.

Grafting and Management of Golden Leaf Ligustrum lucidum with golden leaves and bright young leaves, it has a good effect in arranging pattern flower beds and large color blocks. In order to improve the appreciation of Ligustrum lucidum, we can try to use Ligustrum lucidum as rootstock and cultivate it into spherical, flaky and layered distribution by grafting, which is dotted with flower beds in green space or planted on both sides of the road.

First, grafting time. Spring and autumn are the best seasons for grafting. 1. Spring grafting: 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. Split grafting, splicing, abdominal grafting and subcutaneous grafting are available. The speed of subcutaneous grafting is fast and the survival rate is high, which is a common grafting method in nursery in recent years. 2. Autumn grafting: generally, budding is used. T-shaped bud grafting was carried out from June to August, and sticking bud grafting was carried out from August to September in late summer and early autumn. T-shaped bud grafting is the most commonly used bud grafting method because of its simple operation and high survival rate. Second, rootstock. The golden leaf privet had better use the big leaf privet whose breast diameter is more than 3 cm as rootstock. The rootstock with large size has more nutrient accumulation, high survival rate of grafting, and rapid growth of grafted seedlings, which is more conducive to rapid prototyping. According to the requirements of modeling, different specifications of rootstocks and different grafting heights are selected. Rootstocks with a DBH of 3 to 4 cm can be grafted with 1 m truncation, while large rootstocks can be cut dry by about 2 m. The shapes of different heights adapt to different requirements of landscape design. 1. Layered modeling: the rootstock should choose a large-leaf privet with good dry type and straight and smooth branching point. Grafted in layers at different heights. The first layer is about 40 centimeters from the ground, and the other layers are 50 to 60 centimeters apart. The top layers can reduce the spacing appropriately, and each layer is grafted with 3 to 4 branches. This kind of grafting is more conducive to rapid prototyping. 2. Cloud shape: the stem shape of the rootstock is required to be naturally bent and grafted at each bending point. After survival, it has been trimmed into a film, full of natural interest. Bud grafting requires Ligustrum lucidum at an appropriate height, leaving 4 to 5 branches as rootstock. Evenly distributed and grafted on each branch is beneficial to shaping. Third, scion. To choose the periphery of the crown, fine and uniform, disease-free and pest-free robust branches as scions. It is best to pick up as you pick it up, which is more conducive to survival. If it can not be picked and picked, the scion should be stored in a place with low temperature and relatively high humidity after harvest, and the leaves will be cut off, leaving only the petiole. Fourth, grafting. This paper introduces two commonly used grafting methods: subcutaneous grafting and T-shaped bud grafting. 1. Subcutaneous grafting: oblique system of ⑴ rootstock. Cut the rootstock dry, flatten the cross section, and use a knife to cut obliquely at the edge of the cross section, reaching deep into the xylem. The cutting surface is smooth, smooth and fast. Cut the skin longitudinally under the cutting edge, reaching to the xylem, and the cutting surface is shorter than that of the scion. ⑵ cuts the scion. Cut one knife at the lower end of the scion, about 3 to 4 centimeters, and then one knife on the side, about 2 centimeters. Peel off the cortex of the rootstock, face the large cutting surface of the scion towards the xylem of the rootstock, and cut into the cortex. The cuttings should be left blank about 0.5 cm, align the cambium and smear the grafting site and the top of the scion with hand oil. Bind it tightly with plastic film to prevent infiltration of Rain Water. 2. T-shaped bud grafting: cutting of ⑴ rootstock. The rootstock cuts a T-shaped incision up to xylem at an appropriate height of smooth epidermis, 1 cm horizontally and 3 cm longitudinally. ⑵ cutting buds: when cutting buds, it is appropriate to hold the branches sideways to make the buds go down, choose the strong buds in the middle of the branches, cut a little wood longitudinally from the buds 1 cm away from the buds (from the bottom of the buds up) to 2 cm from the other end of the buds, and then cut a knife to form a shield-shaped bud slice. Pick out the newly cut T-shaped incision on the rootstock, insert the bud piece of the scion, and close the upper transverse incision of the bud piece with the upper transverse incision of the rootstock, and then bind it. Generally, budding can be healed and survived after about a month. Fifth, the management after grafting 1, check survival: generally check the survival of bud grafting about 15 days after grafting, those who touch the petiole with their hands will fall off, that is, they have survived; where the bud becomes black and the petiole is not easy to fall, it does not survive. For those who have not received the job, they should be replaced immediately. If the branch grafting does not survive, a strong branch should be selected from the tillers of the rootstock to be used as supplementary grafting, and the rest of the sprouting tillers should be cut off. 2. De-sprouting: in order to concentrate the nutrient supply interface and promote the robust growth of live shoots, the sprouting and sprouting strips on the rootstock should be cut off at any time. 3. Unbinding: when it is confirmed that the grafting has survived, the binding should be removed in time to avoid hanging into the cortex due to thickening of the plant, affecting growth. Budding can be unbound in about 20 days, do not unbind prematurely, in order to facilitate budding through the winter. The best branch grafting is to unbind the binding when the new tip grows to more than 20 centimeters. Unbinding prematurely will lead to water loss of the interface and affect survival. For those who use plastic bags to moisturize, they should be ventilated and cooled in time, and then gradually removed. 4. Shearing stock: after the budding survives, the branches above the budding stock are cut off as the shearing stock. If the buds are grafted in summer and autumn, the rootstock should be cut before budding in the following spring. The early bud grafting in spring and summer can cut the stock at the time of grafting or immediately after the bud survives. The cutting mouth of the cutting anvil is 0.3 to 0.5 cm above the grafting bud and tilts slightly toward the back of the bud. Too high cut will affect the healing of the cross section, and too low will hurt the budding, which is not conducive to germination and new shoot growth. 5. Prop up: in windy areas in spring, in order to prevent the new tip from being broken by the wind, when the new tip grows to 20 to 30 cm, it is necessary to set up a pillar and tie it with a rope. Pay attention to the binding of the new tip should not be too tight, so as not to constrict the new tip. 6. Other management: it mainly includes disease and pest control of grafted seedlings, fertilization and irrigation, cold prevention, etc., which can be referred to the management techniques of field seedlings. The method of grafting golden leaf privet.

Ligustrum lucidum is generally made into a ball on the ground. In order to improve the ornamental quality, the ball can be raised by means of grafting. Through the experiment, the author used Ligustrum lucidum as rootstock successfully.

Grafting time: grafting was carried out before the cooler weather in autumn and the advent of the second growing season. Material selection and grafting: strong high-stem and large-leaf privet plants without diseases and insect pests were selected, and 4-5 branches were selected as rootstocks. On the thicker branches of Ligustrum lucidum without diseases and insect pests, well-developed and full bud eyes were selected as buds. Adopt shield grafting method with xylem budding. After being connected, wrap the whole wound layer by layer with plastic film to prevent infection. Generally, each plant of Ligustrum lucidum was grafted with 810 buds.

Management: after the completion of grafting, normal management, about a month or so the wound began to heal. After the spring water was watered at the beginning of April of the following year, the entangled plastic film was removed and the branches of Ligustrum lucidum were cut off at 2 cm on the grafting bud. A few days later, the surviving buds of Ligustrum lucidum began to germinate. when the branches grew to about 10 centimeters, hit the first 2-3 centimeters of the branches.

Ligustrum lucidum and Ligustrum lucidum both belong to Oleaceae and Ligustrum lucidum. The former is a good green sub-tree, which is often ignored because of its universality. The latter is a color tree species, which has been widely used by people in recent years. Because the golden leaf privet belongs to the shrub class, which limits its practicability. In order to expand the greening function of the two, the author makes a high connection by learning from each other to achieve this goal. The steps are as follows:

Branch grafting or budding can be used in spring (sap has flowed, it is best before sprouting). The large-leaf privet with a breast diameter of 3 cm to 4 cm was used as the rootstock and the golden leaf privet as the scion. First of all, choose the height of the rootstock and the angle of the branches. On the inside of the base of the rootstock branch, use a sharp knife to cut a knife about 2 cm long, the blade just reaching the xylem is the best. The scion can be 3 cm to 5 cm long and cut into a positive wedge of about 2 cm with a knife. The blade of the rootstock is slightly longer than that of the scion. Then, quickly and accurately align the cambium of the two. If the blade of the rootstock is too wide, two scions can be juxtaposed. Then, use a moderately thick and flexible plastic strip to wrap up from the lower part of the edge of the rootstock. You can use more force when wrapping the joint of the two, and when you get to the upper part of the scion without a knife edge, you can wrap it around the rootstock. At this time, must wrap the scion tightly, otherwise the scion is easy to air-dry or not completely healed. After grafting, some branches and leaves of the rootstock can be thinned properly, and this work can also be done before grafting.

Spring bud grafting, use a knife to cut a 2 cm long knife in the appropriate position of the rootstock, take a certain amount of xylem (not too thick) when cutting the scion, then aim at the cambium of the two, and wrap it up from the bottom with a plastic strip. When you get to the bud point, you can use a little more effort so as not to hurt the bud. Whether the bud is dewy or not depends on the weather.

You can know whether you will survive or not in a week or so. If the failure can be repeated, if the grafting is successful, you can take off the plastic strip and then wrap it gently. The branch grafting can not wrap around the upper part, and the bud grafting can reveal the bud point to facilitate germination. Before the scion sprouts, do not cut off all the branches and leaves of the rootstock, otherwise it will cause the rootstock to "sprout" or even die. At this time, the branches and leaves of the rootstock can be left with 1 stroke and 3 strong points to facilitate the crown and root system to maintain physiological balance. When the buds of the scion grow to 1 cm to 2 cm, all the branches of the rootstock can be cut off and the plastic strips can be removed. In the future management, the main thing is to remove the sprouts from the rootstocks. Some of the sprouts on the stem of the rootstock can be left behind to control its growth and lay the foundation for future modeling. The sprouts around the roots and scions should be removed so as not to compete for nutrition and disturb the tree.

The affinity of the two is strong, the knife edge heals well, and the grafted seedlings grow vigorously. If the water and fertilizer keep up and manage properly, the crown diameter in two years can reach about 2 meters, and the golden branches will droop naturally. The branches germinated from the middle and lower parts of the rootstock can be artificially shaped, or flat, or spherical.