Discussion on Cuttage Propagation method and grafting technique of Camellia

Camellia, also known as Camellia, is an evergreen shrub or small tree with long life, brilliant flowers and colors and a wide variety. It is one of the traditional valuable woody flowers. However, it is highly technical in raising seedlings. According to the practice of experts, various methods of raising seedlings are introduced as follows for your reference.

I. Cuttage

Due to different climatic conditions, the cuttings of camellias are also different. when the new shoots grow to semi-Lignification and the buds begin to be full, they can start cutting. It usually lasts from April or May to the end of September. In the south of Guangdong and Guangxi, it can be held as early as the end of January to early February.

The slotting bed should be located in a ventilated and shaded place, and the bed bottom can usually be laid with coarse-grained flower mud and covered with clean fine sand. You can also use gravel and broken bricks to lay the bottom of the bed and cover the acid red loam. In order to meet the requirements of camellia growing in slightly acidic soil. However, it is appropriate to keep warm without stagnant water.

Cuttings can select buds with full shoots on the mother plant that is strong and free of diseases and insect pests, and cut a section of about 7 to 8 centimeters long with leaves (generally there should be more than two buds). Then cut off the lower half of the leaves and retain all the upper half of the leaves.

The depth of cutting is generally 4 cm, and the distance between cuttings is 5-6 cm. Try not to hide the leaves of cuttings from each other. Drench thoroughly with clean water immediately after insertion, then drench it 2 or 3 times a day, and grasp it flexibly according to the weather conditions.

Second, high voltage

High pressure, also known as ring branch, is the most suitable period from May to late September. The part of camellia under high pressure should be more than 15 cm away from the top of the tip, and it is better if there are more than 2 branches. High pressure should be combined with the shaping of the mother plant, and protruding branches should be selected on the uneven crown. Camellias often draw out summer shoots one after another around June, and carry out high pressure on this kind of branches, it is appropriate to choose the spring shoots below the joint of spring and summer shoots.

On the selected part, cut two circles 2 cm apart along the branch ring with a knife, and then cut off the bark between the two loops. after the surface of the xylem is exposed (usually more than 2 days), wrap the ring-cut parts with mud strips or moss made of straw mixed with clay, wrap the surface after about 1 month, and add a layer of transparent film to moisturize. New roots can be sent out in about 3 months. Then cut off the mother plant, hide it in the sand bed, and then pay attention to watering and moisturizing.

III. Grafting

The rootstock used for camellia grafting can be selected from 2 ~ 3-year-old seedlings of Camellia oleifera which belong to the same genus.

1. Because the whole crown of the rootstock should be cut off, the cutting time should be carried out in the period when the rootstock grows slowly in order to maintain the growth balance in the future.

When cutting, cut off the anvil which is more than 3 centimeters above the ground, and then cut about 2 centimeters vertically on the relatively straight side with a little wood, cut off the part by 3 centimeters, and the cutting edge is oblique.

Then, select the branch tip of camellia with full bud body, cut the length of about 3cm to 4cm as scion, remove the lower half of the leaf, cut off 2cm each of the upper half of the leaf, cut down slightly at about 2cm below the back of the ear bud with a knife, cut off about 2cm of wood, and then cut a small slope of about 0.5cm under the back of the cutting slope.

Insert the cut scion cuttage into the cut of the rootstock and align it with the forming layer on both sides of the cut of the rootstock. If the cut of the rootstock is wider than the scion, the scion should be moved to one side to ensure that the cambium on one side is aligned with each other. Then fasten and fix it with plastic tape or other fiber tape, and then seal the upper plastic film to prevent moisture loss.

The camellias can heal in about 50 days after cutting. When it is found that there are new leaves on the scion, the top of the cover film should be cut open. When the new leaves grow out of 3-4 pieces, it will be basically stable, and all the wrapping can be removed.

two。 Ventral grafting can be carried out except that the shoot is too tender and the bud is not solid during the initial period of March to April.

The selection of the ventral rootstock is the same as that of the cut rootstock. First cut off the lateral branches around the rootstock that may hinder the operation, and retain the rest of the dry crown. Then, at the place where the anvil is 4cm above the ground, choose the straight side, cut a slope of about 2.5cm from the epidermis, and the deepest part is no more than 2cm 5 of the thickness of the anvil, and then cut off the cut by 3gam4, and the cut is oblique.

The cutting and cutting methods of ventral grafting are roughly the same as those of cutting.

Check 40 or 50 days after abdominal grafting, if it has healed, the film can be loosened, but not all, and cut off the rootstock crown about 2 to 4 leaves, wait for the scion to grow 3-4 leaves, as the growth has been stable, cut off all the rootstock above the scion, that is, to form a new plant.

These are all the contents of today. Tea farmers are welcome to refer to and study according to the actual situation!

How does pink Dan multiply? A brief talk on the Propagation methods and cultivation techniques of Fendan

Fan Dan is one of the many camellias, its color is pink, beautiful and moving is the favorite of camellia lovers, the following editor will talk about the breeding methods and cultivation techniques.

I. growth habits

This variety should be planted in a loose and fertile soil with good drainage. The suitable temperature for growth is 2032 ℃, and it can withstand the low temperature of-8 ℃ in winter. Anxiety will occur when the summer temperature reaches 35 ℃, and the cultivation substrate is usually loess, humus soil, peat, sawn wood or mixed substrate.

II. Methods of reproduction

1. The cutting time is from April to May, or from August to October. The semi-woody and lignified branches of the young mother tree are selected, which are about 5 to 8 centimeters long, with one lateral bud at the top of each cuttage, 2 leaves and 3 leaves. Cut into a 45 °oblique at the lower end of the node. After insertion, cover with plastic film to maintain humidity, strengthen foliar spray, properly ventilate according to temperature and substrate moisture condition, spray some chlorothalonil solution every week to prevent cuttings from infecting germs, and spray foliar spray after cuttings take root. In order to improve the survival rate of cuttings, cuttings could be soaked in 0.1 / 0.5 g / L rooting agent ABT, NAA or IBA for 2 hours and rooting at 30 ~ 45 days after cuttage.

two。 Strong seedlings or camellia varieties that are easy to survive are selected as rootstocks for grafting, and then scions are carried out. 1 or 2 leaves are retained in the scions, cut into wedges and inserted into the cracks split by the rootstocks, and the cambium should be closely jointed. Then tie it with plastic tape to block direct sunlight.

3. The bud is inserted with each bud node as a segment, retaining a leaf, cutting the lower part diagonally, and then inserting it into the medium with a depth of covering no branches. This method can make full use of branches and is suitable for mass reproduction.

III. Cultivation techniques

1. The red (yellow) loam with acidity, high humus and loose ventilation was selected as the substrate, and the pH value was 5.5-6.5.

two。 Avoid high temperature and scorching sun, and need proper shade in summer to avoid leaf burns caused by direct sunlight.

3. The appropriate temperature growth temperature is 18-25 ℃, and a sudden drop of air temperature below 0 ℃ in winter will cause frost damage. Therefore, when the temperature is too low, warm measures should be taken to make it safe to survive the winter.

4. Because of many leaves, large leaf area and fast transpiration, water and fertilizer need to be replenished and watered in time, and the stagnant water in the basin should be removed in time to avoid root soaking and decay. Fertilization is usually carried out from 10 to 11 months before flowering and 2 to 3 months after anthesis. Fertilizer is mainly used: rotten cake fertilizer powder, organic fertilizer, compost, high potassium and low nitrogen compound fertilizer, according to the principle of frequent application of thin fertilizer, should be light rather than heavy, strong seedlings should be applied more, weak seedlings should be applied little or no, and no raw fertilizer should be applied.

5. The environment with moderate flow of ventilated air is not only conducive to its growth, but also conducive to flower bud differentiation, flower bud growth and development, but also plays a role in preventing diseases and insect pests.

Camellia has always been a very popular flower, and it is also a good landscaping seedling, which can watch the flowers when they bloom and the leaves when they do not bloom. The above are the cultivation techniques of tea pollen Dan. Remember to collect.

A brief introduction to the treatment of unhealed wounds of grafted camellias

Camellia is cherished by the horticultural circles all over the world because of its beautiful plant shape, bright green leaves and colorful flowers. There are many varieties of camellias, which is a traditional ornamental flower in China. It ranks eighth among the "top ten famous flowers" and is also one of the most valuable flowers and trees in the world. The propagation of camellias generally has two methods: cutting and grafting. Compared with cuttings, grafted camellias have their unique advantages. Many flower friends buy grafted camellias. Generally speaking, their grafted camellias are more meticulous in grafting management than in the flower field, and the wound healing is better but not fully healed.

How to deal with camellias whose wounds have not been fully healed (this is also common in grafted camellias purchased). I would like to talk about my opinion on the wound healing of grafted camellias. according to my grafting situation over the past few years, the wound can be completely healed in two years by grafting of small rootstocks (rootstocks of 2 cm or less). Ultra-small rootstocks (chopsticks) can hardly see the wound at that time. Rootstocks of 2cm and 3cm usually heal completely in about three years.

Sometimes the grafting situation is not ideal, for example, only one of the two scions survived or both survived but the wound could not heal with poor growth, and the thicker cross section of the rootstock was difficult to fully heal. In order to make camellia grow normally for a long time, it is necessary to perform a small operation on it so that the wound can heal better and faster.

Camellias with normal graft wound healing

Camellias with grafted wounds that have not fully healed

The camellias whose grafted wounds were not fully healed were treated. See the picture, first cut off the cross section of the wound that cannot be healed with a knife, then cut the edge of the healing and proliferating tissue of the graft with a knife, and then bandage the wound with black plastic tape (the wound heals faster in black). As simple as this, it can be completely healed in the second year, and the dressing can be removed after complete healing.

This is that only one of the two scions survived, and the side that did not survive was cut and bandaged with a bevel, and now it is basically completely healed, and the bandage can be removed at the beginning of spring.

Cutting propagation methods of camellias:

This method is the most simple and convenient, and the most suitable cutting time is in September, and it can also be in spring. Select the well-growing, semi-lignified branches, remove the basal leaves, retain the upper 3 leaves, cut them into an oblique orifice with a sharp knife, immediately soak the incision in 200-500ppm indolebutyric acid for 5-15 minutes, then insert it into a sand basin or vermiculite basin after drying, water the wound for about 40 days, and take root for about 60 days. The cuttings treated with hormone took root 2-3 months earlier than those without hormone. Vermiculite is used as a slotting bed, and it takes root much faster than a sand bed.

Conclusion: the above is the introduction of the knowledge about camellias. I hope it will be helpful to the friends who grow camellias.