Grafting belongs to the category of asexual reproduction. It combines two plant parts into a whole and continues to grow like a plant. In the grafting combination, the upper part is called the scion, and the part that bears the scion is called the rootstock.

Some rose varieties have a small number and attractive flower color, while self-rooting seedlings have weak root systems and extremely slow growth. 


The use of strong rootstocks for grafting makes these rose varieties grow stronger and have increased disease resistance.

Grafting is one of the most widely used methods for breeding roses. The following shows you four common grafting methods of rose.

1. Budding with wood inlay

(1) Cut a shield-shaped incision with a length of 1 to 2 cm at an angle of 30° to 40° on the sunny side of the rootstock 4 to 6 cm from the ground.


Then use the same method to select full and full buds from the slivers of the same size and insert them into the cuts of the cut rootstocks. 


Use a white plastic tape with moderate elasticity and width to bind tightly from the bottom to the top with a ring crimp, and the elasticity should be moderate.


(2) When inserting the buds into the incision, the cambium should be aligned with the largest area as much as possible, so that the xylem of the rootstock is not exposed.

This method is simple and quick to operate and has a high survival rate, but the technical requirements are high. It is necessary to master the technique of one-time anastomosis of stocks.

2. T-budding
T-budding is also a popular method of rose grafting production.

(1) Use a short-edged vertical knife to make a cross cut at the unbranched sunny side of the rootstock 4 to 6 cm from the ground, about 5 to 8 mm wide, with a depth just above the xylem, and then cut a vertical cut under the middle of the cross cut , About 1.5 to 2 cm long, making the skin form a T-shaped opening.


(2) Cut the cuttings from the mother plant, remove the leaves and leave the petioles, choose the full and full buds, and use a sharp knife to cut a cross at about 0.5 cm above it and penetrate into the xylem about 3 mm, and then use a knife to pick it up. Approximately 0.5 cm below the bud and the xylem pushed up to the cut above the bud.

(3) Use a knife to pick up the cortex of the T-shaped incision of the rootstock, and implant the graft into the incision. After implantation, make fine adjustments to align the transverse incision of the graft with the transverse incision of the rootstock without exposing the cambium of the rootstock. Ideally in place. After the buds are placed, they should be tied with plastic tape, and the buds must be exposed when binding. Although this method is cumbersome and time-consuming, the grafting of one plant can be completed within one minute after the operation is skilled, and the grafting survival rate is extremely high, and the survival quality is excellent.

3. Pacth budding
The pacth bud grafting method is also a very popular grafting method at present. The technical requirements are high. The exposure time of the stock incision should not be too long. The operation points are as follows:

(1)Use a short-edged vertical knife to make a horizontal cut on the smooth, sun-facing surface of the rootstock 4-6 cm from the ground. The depth is just as deep as the xylem, and then align one end of the transverse incision and cut it 1.5-2 cm down. Make another cut at the other end of the transverse incision. The depth of the two knives is just as high as the xylem, and then a crosscut is made about 0.5 cm below the transverse incision, and a small square cortex is removed with a knife to expose the xylem, and then opened with a knife.


(2) Remove the stalks from the leaves and leave the petioles, select the full and full buds, cut a cross about 0.3 cm above the buds with a knife, and then cut one end of the cross cut down 1.5 to 2 cm. Then make a longitudinal cut at the other end of the transverse incision according to the original shape, and then align the two longitudinal incisions with a transverse cut to form a rectangular bud piece with buds. The depths of the four cuts all reach the xylem.


(3) Use a knife or hand to open the cortex of the rootstock to quickly implant the buds and make fine adjustments. Align the two transverse cuts of the stock, and tie them with plastic bands. The elasticity should be moderate. By adopting this method of grafting, the contact area of the stock and panicle cambium is large, and the feeding is rapid, which can greatly improve the survival rate and survival quality.


4. Cleft Grafting

Scion selection, the scion in the growing season requires the best shoots that grow vigorously after flowering, with full buds and ungerminated branches.

The length of the scion is determined according to the needs. Normally, one bud is enough. Cut 2 cm above the bud, and cut the lower part about 5 cm below the petiole. If there are leaves, cut the leaves about 1 cm of the petiole.


To cut the scion, the blade must be sharp. It is best to cut the scion with one cut (requires skill). The left and right noodles should be on the left and right sides of the bud, not on the top and bottom of the bud


It is best to put the scion in your mouth when it is cut, and not to be exposed to the sun. It is best to put the scion in the mouth and not be exposed to the sun.


Rootstock, also remove the obstructive leaves and thorns. The thickness of the rootstock should be slightly thicker and scion, but if the rootstock is missing, it can be grafted with a little finer.

Make a vertical cut in the middle of the top of the rootstock, the depth depends on the length of the scion.


Rootstock

Align the skin of the scion with that of the rootstock


Insert it into the cleft of the rootstock. Make sure that the skin of the scion is consistent with the skin on one side of the rootstock (because the skin on both sides of the scion is consistent with the rootstock at the same time.）


Pay attention to the place marked on the picture. It is best to expose some wounds here, so that the wounds of the scion and rootstock will heal well and firm


This is the key to get high-quality grafted seedlings


This is the side of the unaligned skin


Wrap up with plastic strips


Squeeze the rootstock properly to make the rootstock and scion bandage tightly.


This is the key to survival. In order to improve the survival rate and reduce the evaporation of the scion, I personally think it is very convenient. 

When bandaging, use the plastic strip to bring up and down, and cover the upper end of the scion. The plastic strip is flexible and slightly Pull harder, the plastic strip will wrap tightly around the scion wound.


Normal maintenance is sufficient, without sunshade, the petiole will fall off when touched in about a week, and the scion will be dehydrated, indicating survival.


It survives about 8 days after grafting, and the buds begin to grow after survival. The plastic strips can be removed according to the survival situation.