The latest method of grafting Camellia on Camellia oleifera

There are many methods of grafting camellia with Camellia oleifera as rootstock. At present, peeling grafting with broken rootstock and continuous branch grafting under rootstock are widely used. When peeling grafting with broken rootstock, part of the nutrient branches of the original crown should be retained, and 24 scions should be grafted per rootstock depending on the size of the rootstock. Let's take a look!

Camellia is continuously grafted under the rootstock.

1. Cut the ear to grow to 23 cm, with one leaf and one bud at both ends, then flatten it with a knife on the opposite side of the petiole, with a little xylem in depth, and cut off leaves 1/3 or 1/2.

2. The cutting stock rinses the grafted part with clean water at the trunk 50-80 cm above the ground, and then carves it into an "n" or "H" shape with a knife tip, which is as deep as the xylem and is as long as the scion, depending on the thickness of the scion and tearing the cortex from top to bottom.

3. Embedding the scion into the skin groove of the rootstock, covering the strap of the rootstock on the scion and bandaging it with elastic film.

Peeling grafting of camellias with broken rootstock

The main results are as follows: 1. 24 branches of rootstocks with proper angle, straight and smooth, free from diseases and insect pests were selected for each tree, which were sawed off at 50-80 cm from the ground, except for 2-3 vegetative branches, all the other branches were removed.

2. Scrub the interface and the bark 5-7 cm below the interface with clean water.

3. Cutting the rootstock with a grafting knife to cut the saw, which is high in the inside and low in the outside.

4. Cutting the ear on the reverse side or side of the bud, slightly see the xylem, the cutting surface is 1.52cm long, and the interface is obliquely cut on the opposite side, which is 30 °inclined, showing a Malal shape, generally one leaf and one bud of scion, and the leaf is cut off 1/3 or 1/2.

5. Cut the rootstock according to the size and length of the scion, cut twice on the rootstock with a grafting knife, the depth is only up to the xylem surface, and then pick off the skin.

6. Connect the long cutting of the scion to the xylem of the cut face of the rootstock, align the straight edge, show a little white, and wrap the short interface of the scion with a rootstock strap.

7. Bandage the interface with a certain elastic plastic film tape from bottom to top, and pay attention to prevent the scion from shifting.

8. Moisturizing shade cover the rootstock with a moderate plastic bag for moisturizing, and use bamboo shoot shell or waste Kraft paper to cover the outer layer of the moisturizing bag from east to west.

Grafting camellia on Camellia oleifera

1. Grafting time: the suitable grafting time is from June to July, when the new leaves of camellia scion have been unfolded, and the temperature is high, the grafting wound heals quickly and the survival rate is high.

2. Grafting method: use the cutting method in the grafting method. Because of the high position of grafting, we often call it "high grafting head".

Treatment of ① rootstocks: there are two ways to deal with rootstocks. First, it is grafted from June to July, and 3 to 5 main branches with a diameter of 2 to 5 cm are selected as grafting branches on Camellia oleifera. After the grafted branches are truncated with a hand saw, the saw mouth needs to be roughened and flattened with a sharp grafting knife before grafting. Thicker branches can be grafted with several more scions along the periphery. Second, in the winter of last year, three to five evenly distributed main branches were selected on Camellia oleifera to promote adventitious branches. each branch was carefully preserved and grafted after semi-Lignification of adventitious branches from June to July, which is also known as green branch grafting or tender branch grafting.

Selection of ② scion: on the mother tree of the selected ornamental camellia varieties, one-year-old branches with strong growth, no diseases and insect pests and full bud eyes were selected as the scion.

③ grafting tools and auxiliary materials: need to prepare packing rope, plastic film strip, white plastic bag, splice knife, pruning shears, handsaw and so on.

3. Splicing operation method

① cuts the scion into 5-6 cm segments, each with 2 to 3 lateral buds. In order to reduce evaporation, the leaves can be cut in half. Cut a long slope at 1 cm below the scion, about 2 to 3 cm long, and a short face on the opposite side of the long side, less than 1 cm in length. Cut the section of the rootstock flat, select a smooth place on the xylem edge of the cross section of the rootstock and cut a knife downward, the length and width of the cut of the rootstock correspond to the long side of the scion, and then insert the length of the scion obliquely facing the rootstock, and align the cambium on one side, wrap the cortex of the incision of the rootstock around the scion. The thick rootstock can be grafted with several scions along the periphery, and then tied together. Bind with a plastic film strip about 1 cm wide (there should be a certain degree of elasticity) to be bound, and the film strip must be tightened when binding.

② binds the rootstock with a white transparent plastic cover bag, and binds the mouth of the bag with packing rope, which can protect moisture. In places where the sun is too strong, the grafted plants should be protected by shade. Sprouts on rootstocks should be wiped off at any time during maintenance to reduce nutrient consumption.

When ③ Camellia oleifera is high grafted, camellia varieties with similar flowering period can be grafted on one camellia tree to produce "ten brocade" camellias with two flowers and more flowers, so as to improve the ornamental value of camellias.

4. Management after grafting: after that, pay attention to protect the moisturizing bag within 1 month to prevent human and animal harm and pests from biting the moisturizing bag. When the new tip touches the moisturizing bag, the moisturizing bag can be removed (it should be carried out in the evening or rainy days). The shading material is retained, the incision is coated with wax, and the sprouting strip is removed in time. When it is found that the new shoot is growing, the top can be removed and the bracket can be set up in time to prevent wind break and diseases and pests from harming the new shoot.