How to graft sweet-scented osmanthus? Scion selection of sweet-scented osmanthus rootstock and key points of management after grafting

September is really in the season of sweet-scented osmanthus, and in ancient Chinese poems about flowers, the number of works singing osmanthus is also considerable. "it is not a human species, but comes from the middle of the moon." The fragrance of sweet-scented osmanthus is the fragrance of sweet-scented osmanthus. Not close to sweet-scented osmanthus, you can smell a refreshing aroma from afar. Back to the point, what the editor is going to talk about today is how sweet-scented osmanthus is grafted.

The grafting of sweet-scented osmanthus is one of the main methods of propagation of sweet-scented osmanthus. The method of grafting can maintain the genetic characteristics of the mother tree and is beneficial to the rapid growth of sweet-scented osmanthus, but the deficiency is that the technical requirements of grafting are relatively high, and the technical requirements of grafting are as follows:

1. Rootstock selection

The southern grafted sweet-scented osmanthus often uses privet and white wax as brick wood, while in the north it uses tassel as brick wood because of its strong cold resistance. Sweet-scented osmanthus grafting is to choose brick wood, to choose a larger tree as rootstock, so that the grafting has the advantages of fast growth, early molding and short flowering life. Of course, rootstocks of different thickness are suitable for different grafting methods. For example, the fine rootstock of 1cm is suitable for tongue grafting, splicing, embedded bud grafting and leaning grafting, while thick brick wood is suitable for split grafting and subcutaneous grafting.

2. Scion selection

The excellent single plant with no disease, strong quality and many flowers was selected as the mother plant, and the 2012 branches were collected from the periphery of the crown as the cutting and splitting scion. One-year-old branches can be used as bud grafting scions, and 3-5-year-old branch groups (groups) can be used for leaning grafting.

3. The suitable period of grafting

The suitable grafting period of southern sweet-scented osmanthus is from March to May in spring and October in autumn.

4. Grafting method

The grafting technology of sweet-scented osmanthus is not much different from that of other plants, and the scion is required to be grafted along with picking to avoid water loss. No matter which kind of hair is received, it requires that the cambium of the scion and the rootstock should be aligned. In the grafting easy to use, to use plastic tape to wrap the interface, so that tissue can be in close contact, but also can prevent its water loss.

5. Management after grafting

After the scion sprouting, the upper part of the rootstock should be cut off above the interface 1cm; after 2-3 months after the grafting, the scion should be cut off under the scion ring peeling, and the connection between the scion and the mother plant should be completely cut off about a month later. The new buds sprouting on the brick wood should be removed in time, and only after the grafting survives and grows new leaves can the binding be lifted. In the later stage, it is necessary to do a good job in preventing wind, diseases and insect pests and other management measures.

Grafting method of Osmanthus fragrans, the key points of potted Osmanthus fragrans Conservation

When decorating in the home, many people will choose to put several pots of sweet-scented osmanthus with beautiful plant shape and pleasant fragrance. So, how to maintain potted sweet-scented osmanthus? How can sweet-scented osmanthus be grafted? Next, I will introduce the key points of potted sweet-scented osmanthus conservation, as well as the grafting methods of sweet-scented osmanthus.

Key points for conservation of potted sweet-scented osmanthus

1. Watering: the sweet-scented osmanthus pot soil should be watered thoroughly, but it is necessary to spray water on the leaves once a day to spray all the branches and leaves evenly, so as to start dripping water, so as to keep the leaves moist and wash the dust adsorbed on the leaves. After the Qingming Festival, the sweet-scented osmanthus was moved to the open air and watered once. It must be watered in the morning and evening in summer and around noon in winter, so that the water temperature is close to the soil temperature, so as to avoid sudden cold and heat, and pay attention to no stagnant water. Keep the basin soil moist in winter.

2. Fertilization: sweet-scented osmanthus is mainly ornamental, and sufficient fertilizer should be provided. During shoot shooting, nitrogen fertilizer could be applied twice to promote the growth of branches and leaves, while phosphorus fertilizer was mainly applied before flower bud differentiation and flowering. After the sweet-scented osmanthus is moved to the open air in spring, it begins to water the thin bean cake. Sesame sauce. Fish fishy water, etc., once every semimonthly, irrigated once a week from the end of May to before flowering, the concentration of fertilizer and water increased gradually, and 0.5% potassium dihydrogen phosphate solution was applied every other half month from July to August. Apply a light fertilizer after flowering so as not to cause autumn branches. In winter, it is necessary to apply more organic fertilizer and phosphorus and potassium fertilizer. Generally, the roots should be treated with retting rotten and deodorized cake fertilizer 25mol / 30g, potassium dihydrogen phosphate 10m / 15g, 2-3 jin of water, and 1000 times nucleotide spray on the leaf every 15 days. The mixture of 600 times high-efficiency biological phosphorus and potassium fertilizer can spray all the branches and leaves evenly, and it is appropriate to start dripping water. Before applying fertilizer, the basin soil should be a little drier, and it is appropriate to loosen the soil so that the fertilizer can be absorbed. Water should be watered once on the second day of fertilization. If compost or stable compost is used, it must be completely rotten before it can be used (marked by blackening of fat). The concentration of chemical fertilizer calcium superphosphate should not exceed 2%, and the concentration of urea should be 0.5-1.0%.

3. Pour the pot: the potted sweet-scented osmanthus should change the soil once every 2-3 years. Cut off part of the old and withered roots and remove part of the old soil with bamboo sticks. Before putting on the basin, put a layer of river sand or vermiculite on the bottom of the basin to facilitate ventilation and drainage, and place rotten cake fertilizer as the base fertilizer, the fill must be compacted, which can promote sweet-scented osmanthus blossom and luxuriant leaves. The soil ratio of potted hanging flowers is not very strict, and it can be made of garden soil, barnyard manure and river sand. If the acidity is too high, you can add some lime powder or plant ash; if the alkalinity is too heavy, you can add some aluminum sulfate or ferrous sulfate. In spring, after potted sweet-scented osmanthus is planted, it should be watered thoroughly, and then moved to the shade for about 10 days to make it "serve the basin". During the period of taking the pot, do not apply fertilizer. Water and fertilize only after the growth is restored and new leaves grow. The texture of flowerpot is better with purple sand pottery or glazed pottery, and the color is better with purple or ochre, which can be in sharp contrast with the color of flowers and leaves to increase its ornamental effect.

4. Pruning and shaping: sweet-scented osmanthus is best made into curved dry type, oblique dry type or floating style. The tree is oblique, with luxuriant branches and leaves, simple and natural, the most enjoyable. When it blossoms, the fragrance is overflowing and refreshing. The plastic surgery of sweet-scented osmanthus generally adopts the method of climbing and pruning, and the trunk can be tied into a curved stem or oblique dry type. The shaping and pruning of sweet-scented osmanthus should be carried out after autumn. for the plants with high growth and empty lower branches and poor tree shape, the whole top branches can be cut off at 2pm 3 or 3pm 4. for "top-heavy" plants, the upper too dense branches should be cut off, leaving only the lower small branches, and the plants with too dense branches should be thinned. After flowering, a pruning should be carried out to cut off the overgrown branches, withered branches, disease and insect branches, dense and thin branches.

5. Overwintering: the room temperature should be kept at 5 ℃, and the relative humidity should be kept at 50-80%. Winter cold indoor light should be good, especially before the early spring buds begin to sprout, more sunny is required. In the spring of the following year, potted sweet-scented osmanthus was arranged to go out after Grain Rain in North China (before and after the sting in the Huang-Huai Valley). After coming out of the room, first concentrate on the outdoor leeward and sunny place, and then spread it into a row, so that it gradually adapt to the external environment.

6. pest control: the common diseases of sweet-scented osmanthus include leaf spot, coal pollution, algal spot, root rot, iron deficiency and so on. Leaf spot, coal pollution and algal spot can be sprayed with 0.5 Bordeaux solution or 5% carbendazim 500-1000-fold solution for prevention and control; for the prevention and control of root rot, attention should be paid to keeping the soil loose and permeable without stagnant water; if root rot is caused by fungi, 200-300 times solution of benzoammonium can be used to irrigate the root. The common pests of sweet-scented osmanthus are leaf wasp, whitefly, mite, white scale, yellow moth and so on. Leaf wasps, whitefly and mites can be sprayed with 40% dimethoate 1500-3000 times solution. In addition to manual brushing, the scale can be sprayed with 40% omethoate 1000 times or 40% fenitrothion 500 times solution in the first and second generation nymphs.

Grafting method of Osmanthus fragrans

Ligustrum lucidum, lobular privet, lobular ash and other 1-2-year-old seedlings are used as rootstocks. Among them, the survival rate of sweet-scented osmanthus grafted with privet is high, and the initial growth is fast, but the wound is not healed well, and it is easy to break off in case of strong wind or external force collision.

1. Leaning connection method:

Grafting propagation of sweet-scented osmanthus is generally used by grafting method, because privet has strong adaptability, cold and waterlogging resistance, so it mostly uses lobular privet as rootstock. When the grafting is from April to June, the scion can choose a robust twig with a diameter of about 0.7-0.8 cm, and the thickness of the rootstock is preferably equal to that of the scion. When leaning against the grafting, put the flowerpot of the rootstock close to one side of the parent plant, so that the grafting can be close and close, then on the branches of the mother plant of equal height, select the straight, smooth and jointless parts, each cut out an oval section of about 3-4 cm in length, cut out the cambium to the depth of the xylem, and then immediately put the two incisions together to align the cambium, and then wrap them tightly with hemp strips. Wrap it with plastic sheeting to keep the humidity inside. After the completion of the grafting operation, the wound healed after about 2 months, and the wound formed a tumor-like mass and grew tender roots. When the new root grows to 2-3 cm long, it can be cut off from the mother plant. Newly planted plants only need to be placed in a cool place to prevent the sun, maintain humidity and water properly. If it is managed properly, it can blossom in the same year.

2. In addition to relying on the joining method, there are also commonly used splitting and abdominal joining methods in production:

The two grafting methods were carried out before and after Ching Ming Festival. It is appropriate to select 1-2-year-old sturdy, disease-free branches on adult trees, remove leaves and retain petioles. Split grafting method, the rootstock should be cut 4-6 cm from the ground before spring seedling sprouting before grafting. The thickness of the scion should match the thickness of the rootstock, the cutting surface of the scion should be smooth, and the key to the success of split grafting is that the cambium of the rootstock and the scion should be aligned and tightly bound. In the abdominal grafting method, the buds were directly embedded in the rootstock without breaking the rootstock, and then the rootstock was cut off after successful grafting. No matter which method is adopted for grafting, it should be grafted as soon as possible. If you take ears from other places, be sure to keep them fresh. It is better to choose sunny and windless weather for grafting. After grafting, attention should be paid to checking the survival rate, doing a good job in mending, wiping buds, cutting rootstocks, unbinding, water and fertilizer management and prevention and control of diseases and insect pests.

3. Soil piling and grafting:

The soil grafting of sweet-scented osmanthus is carried out by cutting method. When grafting, the scion is soaked for a day and night to make it absorb enough water. Cut the rootstock at 3-5cm from the ground, cut 2-3cm from one side of the cross section, cut the lower end of the scion with 2.5-3.0cm, cut off some skin on the reverse side, and cut flat on both sides, then insert the rootstock to make the cortex close to each other, bind the skin with hemp skin, apply wet mud at the interface, and finally fill the lower part of the scion with moist sand so that the upper end shows 2-3cm. Be careful not to loosen the scion. After the grafting survived by this method, the flax skin rotted by itself, and there was no need to dissolve the rootstock.

4. Rootless grafting technique:

The normal order of cutting grafting is reversed, that is, first the sweet-scented osmanthus buds are grafted on the lobular privet cuttings, and then the grafted cuttings are directly cut in a flat border to take root, and the cuttings and scions survive together. In this way, it avoids the problem of low labor efficiency of squatting to the field after the cuttings survive. The new shoots germinated from Ligustrum lucidum need to be cut off in time to ensure the normal growth of sweet-scented osmanthus.

The above is for you to introduce the key points of potted sweet-scented osmanthus conservation, as well as sweet-scented osmanthus grafting methods, are we clear? Please pay attention to more household knowledge.

How to graft sweet-scented osmanthus and the grafting time

There are many methods of sweet-scented osmanthus grafting, such as relying on grafting, splitting grafting, abdominal grafting, soil-piling grafting and rootless grafting and so on. To graft sweet-scented osmanthus, we can choose from these grafting methods, we are more familiar with them, so it is more reliable to do sweet-scented osmanthus grafting. The following are two grafting methods of sweet-scented osmanthus, abdominal grafting and abdominal grafting. I hope it is helpful to push you.

Grafting time of Osmanthus fragrans

Grafting sweet-scented osmanthus in early spring is better, and it will be able to determine whether it will survive or not, which is conducive to management. Osmanthus fragrans can also be grafted in autumn, and the survival rate of master grafting is relatively high.

How to graft sweet-scented osmanthus

Abdominal connection and abutment are generally used.

1. Osmanthus fragrans grafting: ventral grafting

The abdominal grafting of sweet-scented osmanthus is to trim the rootstock before joining. Cut it all at 6m / m away from the soil and cut it obliquely near the rhizome. Don't hurt the medulla. The scion uses 2 Mel 3 branches (without leaves), about 10 cm long. It is suitable for those with 2 Mel 3 sections. Then cut the ear interface into an unequal wedge and insert it into the cutting of the rootstock to make it close. Bind the soil with plastic or hemp skin to the top of the scion.

2. Osmanthus fragrans grafting: relying on grafting

During the Meiyu period from June to July, two-year-old sweet-scented osmanthus seedlings with similar thickness and thickness were selected and cut off in front of "White Dew" after survival. That is, the new plant can blossom in the same year.

3. Management in the later stage of Osmanthus fragrans grafting.

Osmanthus fragrans can survive and sprout about 20 days after grafting. For unsurvived plants, if the proper time for grafting has not expired, they should be replanted in time.

If the adaptation period has passed, you can choose to leave 1 or 2 new shoots on the rootstock to prepare for replacement next spring.

After the grafted seedlings survived, the cultivated soil should be gently removed and a vigorous and long new shoot should be selected for cultivation to remove the redundant new shoots. The rootstock tillers originating from the rootstock should be removed as soon as possible after the grafting survived. Because the new shoots of rootstock and scion will compete for water and nutrients, which will directly affect the normal growth of grafted seedlings. For example, if the growth of rootstock tiller seedlings exceeds that of scion shoots, it often causes scion "budding" and grafting can not survive.

When the new shoot of the grafted seedling is 15cm or 20cm long, a pillar should be set up to prevent the tree from being crooked or crooked by the wind, and the soil can be cultivated in the rhizosphere of the grafted seedling to prevent the graft joint from splitting.

During the whole growing period of grafted seedlings, attention should be paid to ploughing, weeding, drought and drainage. When the growth of grafted seedlings is more than 10 cm, sparse animal manure should be applied once to promote the growth of seedlings, and then fertilized every other month. The height of annual grafted seedlings can reach 30cm to 40cm, and the highest can reach more than 70cm. Can be transplanted in the following spring, after meeting the specifications, and then out of the nursery for planting and utilization.