Seedling grafting method

Grafting is an important method of tree propagation. Grafting branches or buds of excellent plant varieties to appropriate parts of another plant, and combining them to form a new plant. Grafting can preserve the fine characters of trees, enhance the ability of trees to adapt to the environment, make trees blossom and bear fruit early and cultivate new varieties.

I. T- bud grafting

1. For T-bud grafting, the bark of two trees must be smooth. This method is usually carried out in spring.

2. Cut a scion. Cut at the position of 1.8 cm on the bud under the branch, and the cutting depth should cover the soft green layer under the bark.

3. cut a t-shaped incision on the rhizome. Make a vertical slice on the bark, deep enough to expose the green layer of about 2.5 cm. At about one third of the distance from the rhizome, make an almost deep slice horizontally.

4. use scions. Slide the scion containing buds under the cut you just made on the rootstock, taking care not to bring any dust and bacteria. If a part of the bark of the scion protrudes above the T-cut, cut it off so that all the parts can be properly together.

5. Tie the scion to the rootstock. Wrap elastic rubber material (such as grafting rubber) around the rhizome to keep the position of the bud. Be careful not to squeeze or cover the buds.

6. Remove the cable tie. In a month or so, the rubber wrapped on the rootstock may loosen and fall off. If not, you can gently open it yourself, so that this place will not be tied too tightly.

7. Follow the bud. If the bud looks plump and healthy, it is probably alive. If it withers, then it's dead and you need to start over.

8. Remove other substances. In the following spring, once the scion begins to germinate, cut 1.3 cm diagonally on the successfully germinated scion. Other buds under the scion should be removed to promote the healthy growth of the grafted scion.

Second, bud grafting

1. Bud grafting is one of the simplest grafting methods, suitable for grafting citrus and Rosaceae trees (such as apple trees).

2. Cut a piece on the rootstock and make a small angle oblique cut to produce a small groove.

3. Cut the scion from the grafted plant, put the bud of the scion in the center of the incision, and put the scion on the rootstock as aligned as possible.

4. Guide the scion to the rootstock.

5. Repair the Scion. The elastic rubber material is wrapped around the rhizome to control the bud in a proper position.

Third, grafting

1. Grafting can only be started after the threat of severe cold has passed, but it should also be done before the trunk bark begins to slip (easy to fall off).

2. Prepare the scion, remove the end of the scion, and on the basis of the scion, obliquely remove the end.

3. Prepare the rootstock, select the branches that can match the scion for oblique cutting, and the two must be combined.

4. Cut a tongue-shaped incision, and cut a tongue-shaped wedge on the cut surface of the rootstock and scion, so that they can be paired and hooked with each other.

5. Use scions. Place the scion in a slightly offset position on the rootstock and slide down to make them overlap. Make sure that the green layer under the bark of the two is aligned.

6. Repair the Scion. Wrap the elastic rubber material around the rhizome and control the bud in a proper position.

7. Take good care of the grafted branches, except the leaflets, and remove all the long things under the grafted branches until the grafted branches can successfully absorb the nutrients transported to the trees.

Fourthly, bark grafting.

1. When the rootstock is too big to be grafted, this grafting method is usually adopted.

2. Saw off the roots. Use a sharp saw to cut directly from the bifurcation of several branches, and make sure to leave nearby sprouted branches to keep nutrients moving to the trees.

3. Prepare the Scion. Cut the scion to about 12.5 cm long, leaving about 5 buds for each scion. Starting from the base of the scion about 7.5 cm, it begins to cut obliquely to the base.

4. prepare the roots. Place each scion opposite to the rootstock, exposing the scion section about 0.3 cm above the rootstock. With a sharp knife, cut out the outline of each scion on the rootstock. Move the scions to finish the bark peeling work, so that each scion can fill their space tightly.

5. Use scions. Place each scion on on the rootstock, and pay special attention to ensure that the green layers of the two are accurately aligned. Once in place, in order to keep them connected to the tree, two threaded nails are nailed to each scion.

6. Sealed transplantation. Pour grafting wax or asphalt emulsion into the transplant area, and seal all sections to prevent dryness and bacteria from entering. Check the seal again the next day to make sure there are no holes that will expose the surface.

7. Take care of the grafting place. Pull out all the buds that grow under the grafting. Once one scion grows better than the others, trim the others that don't. After transplanting for two summers, all branches and buds were removed except the strong scion.

Five, cleft palate transplantation

1. This grafting method is usually used on a large number of branches at the top of mature trees.

2. Remove the roots. Select a point below, and the branches will be straight and flawless within the range of 15cm, and then carry out clean vertical cutting to remove the remaining branches. Be careful not to crack the branches and bark. Be sure to leave a sprouting branch nearby so that nutrients can flow to the tree.

3. cut off the roots. Cut 15cm straight down from the center with a grafting knife or axe.

4. Prepare the scion. Move the tip and base of the scion, starting from the bud below the bottom and cutting from both sides of the scion to the bottom.

5. Insert the scion into the rootstock. Split the rootstock with a big screwdriver or a small chisel, and insert scions on both sides of the split. Thirdly, ensure that the green layer of wood is aligned, and the uncut side of scion should be higher than the top of rootstock.

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