How to use Artemisia annua as rootstock to cultivate tall chrysanthemum?

Artemisia annua, also known as Artemisia annua, Ar

1. Cultivation of female parent of chrysanthemum

1. Female parent culture: bonsai chrysanthemums (including Chrysanthemum morifolium, Chrysanthemum morifolium), which grow healthily and free from diseases and insect pests, are selected as female parents in December of the first year and January of the second year. The persistent roots are planted in the arranged nursery. The number of female parents depends on the production demand in the coming year, and rotten organic fertilizer or inorganic compound fertilizer is applied in the nursery.

2. Marking: make variety label and mark the female parent varieties.

3. Fertilizer and water management: after the female parent the Beginning of Spring germinated in the second year, do a good job in water and fertilizer management to promote its growth. For the female parents of Chrysanthemum morifolium, Chrysanthemum morifolium and Chrysanthemum morifolium, 20ppm 920 auxin should be sprayed in the evening when there is no rain every week to promote growth.

2. Rootstock culture

1. Sowing: after the seeds are mature in mid-October of the first year, they can be collected and sown. Of course, they can also be dug up in the field from November to December of the second year. Which one to choose can be decided according to their own actual situation.

2. Transplanting: the seedlings of Cyclobalanopsis lanceolata which were sown or dug in the field were transferred into a round tile pot with a diameter of 10-12cm from November to December to strengthen the management of fertilizer and water. When cold and cold weather, it is necessary to move the potted plants into the greenhouse or build a plastic arch shed to prevent freezing.

3. Rootstock classification: from March to April of the second year, it was classified according to the individual difference of Qingpeng, which was used for grafting high grafting chrysanthemum, big chrysanthemum, cliff chrysanthemum and art chrysanthemum respectively. The rootstocks used for grafting high-grafted chrysanthemum select individuals with plant height, no mulberry or millet in root, and strong apical growth dominance. The rootstock used for grafting Chrysanthemum morifolium was used to select the green pole individual with moderate plant height and more tillers in the root part. The rootstock used for grafting cliff chrysanthemum is a green pole individual with plant height, no millet or less millet in the root and strong tip growth. The rootstock used for grafting art chrysanthemum is a sturdy, branched green pole individual. The classification of rootstocks can shape the trunk and lateral branches of rootstocks according to the modeling design of bonsai chrysanthemums.

III. Grafting

1. Selection of female parent: among them, stratified high-grafted chrysanthemum should choose large flower varieties > 10cm or medium-sized flower varieties with flower diameter 6~10cm, while non-stratified high-grafted chrysanthemum should choose small flower varieties with flower diameter < 6cm. The mother of Dali chrysanthemum should choose varieties with long branches, soft branches and pure colors, such as Tian Jia, Mohe and so on. Cliff chrysanthemum, art chrysanthemum mother should choose short branches, flowers small and luxuriant varieties, such as the sky star.

2. Grafting: the grafting time is based on the time when the number of scions meets the grafting needs of bonsai chrysanthemums, in which high-grafted chrysanthemum and cliff chrysanthemum can start at the end of March as early as possible, while big chrysanthemum begins to grow to about 60cm. Art chrysanthemum can be early or late, but not later than early August at the latest. The scion should choose the semi-lignified chrysanthemum twigs with strong growth and free of diseases and insect pests. Generally, the twigs should spread out with 3-4 leaves. The split grafting method was used to cut the top of the branch of the rootstock, split the lcm from the center of the branch to the bottom, and cut each side of the chrysanthemum scion symmetrically and obliquely, in which the high-grafted chrysanthemum cut the top of the side branch of the main branch of the green pole with 3-5cm, then inserted the scion into the rootstock, wrapped the scion with plastic film, observed the survival, and repaired the dead.

IV. Cultivation

After grafting, it was cultivated according to the normal cultivation method of bonsai chrysanthemum until the chrysanthemum withered. Among them, the cultivation height of high grafting chrysanthemum can reach 500-700cm, the cultivation height of cliff chrysanthemum can reach 200cm-400cm, and the cultivation height of cliff chrysanthemum can reach 200cm-300cm, which can be used for celebration or exhibition to create festive, warm, tall, spectacular scene and atmosphere.

Time of grafting of potted chrysanthemum method of grafting of potted chrysanthemum

Chrysanthemum is a perennial herb with all kinds of strange varieties and beautiful colors. This is not the point, the most important thing is that it can still blossom in winter. Grafting chrysanthemum with Artemisia annua can not only solve the problem of easy lodging and overgrowth of chrysanthemum, but also change the character of chrysanthemum, so that the diameter of chrysanthemum increases by 70% Mel 75%, the diameter of flower stem increases by 20% Mel 35%, and the height of chrysanthemum is 20% Mel 30%. It improves the commodity value and ornamental value of chrysanthemum. So how to graft potted chrysanthemums? Today, let's introduce the method of grafting potted chrysanthemum.

Grafting time of potted chrysanthemum

The time of grafting of potted chrysanthemum, the rootstock was transplanted in the pot, and the rootstock seedlings were allowed to grow for 25 days after the rootstock was slowly infected. Grafting must be carried out at 9: 00 to 16: 00 on a sunny day, when the survival rate of grafting is high.

Grafting method of potted Chrysanthemum

1 preparation before grafting

1.1 preparation of rootstocks from the end of May to the beginning of June, wild Artemisia annua or wild Artemisia annua or Artemisia annua which is healthy and free from diseases and insect pests will be transplanted into flowerpots with soil to make them grow normally.

1.2 the preparation of scion chooses the current year's twigs of chrysanthemum with strong growth, similar florescence and plump flower shape as scion. The thickness of scion should be similar to that of rootstock. The length of scion is about 8-10cm with 3-4 buds.

Prune the scion immediately after collection, remove the basal lateral branches and leaves, cut into the scion according to the specifications and then grafted. The grafted scion is soaked in water immediately, or it can be picked as soon as it is picked.

2 the method of grafting

2.1Graft method is adopted. The lower part of the scion is wedge-shaped and the cutting surface is smooth and flat. Cut off the main stem of the rootstock at the height of 8-12em, then cut the center of the main stem of the rootstock longitudinally, and cut the 2~3cm seam. Then quickly dip the cut wedge-shaped scion and rootstock in 100ml/L7 GGR, immediately insert the scion into the main stem of the rootstock, align and form a layer, quickly bind it firmly from top to bottom with film tape, and then cut off the buds and leaves at the base of the rootstock branches.

The shape of the grafted chrysanthemum can be adjusted according to the actual needs. If you need to be grafted into spherical flowers, first cut off the main top of the rootstock, promote a large number of lateral branches, wait for lateral branches to grow to a certain extent, and complete the one-time grafting according to the spherical surface; if you want tower-shaped flowers, grafted in layers every 10 days or so until the grafting is finished.

3 Management after grafting

3.1 after the completion of bag grafting, in order to improve the survival rate of grafting, the whole grafted seedling can be covered with the prepared plastic film bag to protect the grafted plant from water loss and facilitate the healing of the interface.

3.2 after sprouting and grafting, the rootstocks are easy to sprout and sprout with the increase of temperature. In order to avoid the competition for nutrition and water between the rootstock and the scion and affect the survival of the scion, it is necessary to remove all the sprouts of the rootstock so as to improve the survival rate of grafting.

3.3 immediately watering thoroughly before bagging after watering and grafting, and watering again when the soil in the basin turns yellow, the root rot or physiological drought of the scion should not be caused by too much or too little watering.

3.4 after unbinding and grafting for 2030 days, the tight plastic film can be loosened to the surviving scion. Remember, just relax the tight plastic film, not unbind it; prevent cracking due to premature unbinding and unstable healing of the interface, thus reducing the survival rate of grafting. The new branch can be unbound when it reaches 15~l8cm.

3.5 the grafted seedlings with thinning branches and buds grow many lateral branches after survival, so it is required to remove weak or too many lateral branches so as not to compete for nutrients and affect the quality of flowers. In general, 34 strong lateral branches are left. After the chrysanthemum sits, leave 2 buds with exuberant growth at the top of each branch and remove the extra buds. For the grafted chrysanthemum used for modeling, attention should be paid to the sequence of grafting.

In order to make the florescence consistent, the survival of the first grafting immediately picked the heart to promote the lateral branches, and then picked the heart together with the later grafting. After the flower sits in the bud, use wire or bamboo branches as a support, put on a wire ring and fix it on the circle, you can make chrysanthemums with different colors.

Chrysanthemum is a typical short-day flower, which can be adjusted by increasing or decreasing sunshine time. To blossom ahead of time, you can control the light during the growing period, sunshine 8-10 hours a day, but shading must be strict and uninterrupted; to postpone flowering, add electric lights from August to September, extend the light every day, and when you need to blossom, you will slowly sit in buds and blossom when you stop shining.

3.6 Fertilizer and water management is made by mixing loess with sawdust, leaves, rapeseed cake and furnace ash in proportion, and then retting. After retting and ripening, spray and sterilize with 0.2% potassium permanganate solution. After being fully mixed with diammonium phosphate 0.5kg in 100kg nutritious soil, it was put into a flowerpot and used as a cultivation medium. If this kind of nutrient soil is used as substrate, there is no need for nutrient management during the growth of chrysanthemum.

3.7.Pest control chrysanthemum is prone to aphids from bud setting to flowering stage. The best effect can be achieved when the flowerpot is moved outdoors and sprayed with DDV1500 solution with short residual period and low toxicity. Indoor use cigarette soaking nicotine solution to prevent and cure, but cigarette lye should not be too strong, otherwise it will hurt the flowers. This method is not only environmentally friendly, but also effective.

How to graft chrysanthemum chrysanthemum has been cultivated in China for 2500 years. It is a famous ornamental flower, one of the four famous flowers in China, and one of the most needed cut flowers in the world. Chrysanthemum is a short sunshine, positive plant, like cool climate, cold tolerance, drought tolerance, strong resistance, the most suitable growth temperature is 18-21 ℃, avoid waterlogging. Chrysanthemums can be planted in fields, courtyards and indoors. Potted chrysanthemum in Qinghai has long sunshine time, sufficient light, poor management of water and fertilizer, easy to grow, lodging and small flowers, which restricts the ornamental value of chrysanthemum to a certain extent. Using some Artemisia grafting technology, basically solved this problem, and achieved certain results, the technology is summarized as follows. 1. Preparation before grafting 1. Selection of substrate: ordinary loess and sawdust were mixed at 2:1, and then sprayed with 0.2% potassium permanganate solution for wet disinfection. Mix 100 kg matured rapeseed cake 5 kg and diammonium phosphate 1 kg and put it into a flowerpot. 2. Selection of rootstocks: the main stems of the genus Artemisia of Compositae are erect, branched and perennial herbs are selected as rootstocks, including Artemisia annua, Artemisia 3. Transplanting rootstocks: at the end of May or early June in summer, Artemisia annua, Artemisia annua and Artemisia annua, which grew near the ditch and on the edge of the field stalk, were collected and transplanted in flowerpots. 4. Scion collection: local cultivation is used to cultivate the current year's twigs of chrysanthemum with robust growth, no diseases and insect pests, similar flowering period, plump flower shape and harmonious flower color, prune the scion immediately after harvest, remove the basal lateral branches and leaves, cut into the scion according to the specification and carry on the grafting, and the endless scion can be soaked in water immediately, and it can also be grafted along with picking. Second, grafting time and methods 1, grafting time: rootstock transplanting pot, such as seedlings slow down, seedling growth into the peak period, that is, about 20 days after transplanting, can be grafted. Grafting must be carried out from 9 o'clock to 16:00 on a sunny day, when the survival rate of grafting is high. 2. Choose scion: the thickness of scion should be as thick as that of rootstock. The scion is generally 8-10 cm long and has 3-4 buds. 3. Grafting method: the split grafting method is usually used, the base of the scion is 2-3 cm wedge-shaped, and the cutting surface is required to be smooth and flat. At the smooth place 8-12 cm away from the main branch of the rootstock, cut off the main branch of the rootstock and cut 2-3 cm gap in the center of the main branch of the rootstock. Then quickly dip the cut wedge-shaped scion and rootstock in 100ml / L7 GGR, immediately insert the scion into the rootstock, align the cambium, bind it firmly with plastic film from top to bottom, and then cut off the buds and leaves at the base of the rootstock branches. The shape of grafting should be carried out according to the design. If you want spherical flowers, cut off the main top of the rootstock first, promote a large number of lateral branches, wait for lateral branches to grow to a certain extent, and complete one-time grafting according to the spherical surface; if you want tower-shaped flowers, grafted in layers every 10 days or so until the end of grafting.