Common propagation methods of dragon boat flower

The plant of dragon boat flower is low, it is the national flower of Burma, and it is also a very important potted woody flower. It is very popular because of its rich color. The propagation of dragon boat flower can be carried out by sowing, pressing and cutting, in which cutting propagation is the main method.

Dragon boat flower

First, sowing and reproduction

The seeds were collected in winter and sowed in spring the following year, and the optimum temperature for germination was 22 / 24 / ℃. The seeds were sown in indoor seedling tray and germinated in about 20 / 25 days. The seedlings can be transferred to 8 cm pot when 4 pairs of true leaves are produced. The seedlings should be put on the basin with the acidic humus soil of Gaza in time, and the drainage hole at the bottom of the basin should be enlarged and used as a drainage layer. Rainy season should pay attention to drainage, not too wet during cultivation, too wet is not good for flowering, or even deciduous leaves, rotten roots. The heart can be picked at the initial stage of growth, so that the plant shape is round, multi-branched, multi-flowering, and can also bind rackets and various supports for vine climbing. In order to ensure high air humidity, foliar spray can be done regularly. In addition, the air in the cultivation environment should be fresh.

2. Cutting propagation

Cuttage propagation can be carried out every year from March to October after the spring is warm. Select annual strong branches (too young to survive, skin black is not easy to root if old branches are too black), cut them into 10mur15cm segments, remove basal leaves and cut them on the sand bed. Watering after insertion to keep the soil moist, about 50 days after rooting, about 10 days after the root can be transplanted or on the basin, put half-shaded place maintenance, after rooting survived, and then moved to the sunny place for maintenance. For example, before cutting, soaking the base of cuttings with 0.5% indolebutyric acid solution for 5 seconds can shorten the rooting period and the root system is particularly developed.

3. Striping propagation

Carried out at the beginning of spring, in the case of many and dense branches, 20 cm from the top, ring peeling, bound with peat and film, can heal and take root for more than 2 months. For the newly propagated seedlings, keep them in a semi-shady place after potting, and apply thin fertilizer every 10 min 15 days after survival. When the weather is dry, pay attention to spraying and humidifying. When the seedling grows to about 15 cm, it is necessary to pick the heart to promote the lateral branches and make the plant type plump.

Brief introduction of Dragon Boat Flower Culture method

Dragon Boat Flower (scientific name: C. kaempferi) is also known as the Red Dragon Boat, the Mad Mother Flower, the Red Dragon Boat, the May Flower, the No.1 Yuan Hong, the Guizi Flower and other aliases. The English name is Scarlet Glorybower. Leaves broad, 5-18 cm long, 4.5-16 cm wide, apex acute or shortly acuminate, base deeply cordate, entire or thickly 3-5-toothed. Is an evergreen shrub, often confused with Xiandanhua (scientific name: Ixora chinensis). Dragon boat flower is also a kind of traditional Chinese medicine, its color is red and white.

Dragon boat flower, also known as Yingdan, Xiandan, Baizhihong, Shandan, Yingdan, Hydrangea, Baizhihong, beautiful plant shape, dense flowering, rich flowers and colors, year-round flowers to enjoy, is an important potted woody flowers, is the national flower of Myanmar, the plant is low, beautiful flowers and leaves, rich colors, there are red, orange, yellow, white, two-color and so on. The dragon boat blossoms for a long time and can blossom from March to December every year.

Dragon boat flowers like a warm, moist and sunny environment. Not resistant to cold, semi-overcast, moisture and strong light. The optimum temperature for growth was 15-25 ℃, 24-30 ℃ from March to September, and 13-18 ℃ from September to March of the following year. The winter temperature is not lower than 0 ℃, and it is easy to suffer frost damage if it is too low. On the contrary, the dragon boat flower is resistant to high temperature and grows as usual above 32 ℃.

Generally speaking, the dragon boat flower has a strong adaptability to temperature. Dragon boat flowers like to be wet and afraid of dry. Sufficient water is needed during the growing period of stems and leaves to keep the basin soil moist, which is beneficial to shoot germination and leaf growth. However, if it is too wet for a long time, it is easy to cause part of the root system to rot and affect the growth and flowering. If the soil is too dry or wet when dry, and the water supply is not timely, the phenomenon of fallen leaves will occur.

Dragon boat flowers need plenty of sunshine, especially during the growing period of stems and leaves, the leaves are green and shiny, which is conducive to the formation of inflorescences, neat flowering and bright colors. It can also grow in semi-overcast environment, but the leaves are light green, lack of luster, few flowers and light color. However, proper shading in strong light in summer can prolong the flowering period.

The acid sandy loam with fertile, loose and good drainage is the best soil for the cultivation of dragon boat flower. The mixed soil of culture soil, peat soil and coarse sand is suitable for pot cultivation, and the pH is 5-5.5.

The dragon boat flower has beautiful plant shape, dense flowering, rich flowers and colors, and has flowers to enjoy all the year round. It is an important potted woody flower. It is the national flower of Myanmar. It has low plants, beautiful flowers and leaves, rich flowers and colors, such as red, orange, yellow, white, two colors and so on. The dragon boat blossoms for a long time and can blossom from March to December every year.

Dragon boat flowers like a warm, moist and sunny environment. Not resistant to cold, semi-overcast, moisture and strong light. The optimum temperature for growth was 15-25 ℃, 24-30 ℃ from March to September, and 13-18 ℃ from September to March of the following year. The winter temperature is not lower than 0 ℃, and it is easy to suffer frost damage if it is too low. On the contrary, the dragon boat flower is resistant to high temperature and grows as usual above 32 ℃.

Generally speaking, the dragon boat flower has a strong adaptability to temperature. Dragon boat flowers like to be wet and afraid of dry. Sufficient water is needed during the growing period of stems and leaves to keep the basin soil moist, which is beneficial to shoot germination and leaf growth. However, if it is too wet for a long time, it is easy to cause part of the root system to rot and affect the growth and flowering. If the soil is too dry or wet when dry, and the water supply is not timely, the phenomenon of fallen leaves will occur.

Dragon boat flowers need plenty of sunshine, especially during the growing period of stems and leaves, the leaves are green and shiny, which is conducive to the formation of inflorescences, neat flowering and bright colors. It can also grow in semi-overcast environment, but the leaves are light green, lack of luster, few flowers and light color. However, proper shading in strong light in summer can prolong the flowering period.

The acid sandy loam with fertile, loose and good drainage is the best soil for the cultivation of dragon boat flower. The mixed soil of culture soil, peat soil and coarse sand is suitable for pot cultivation, and the pH is 5-5.5.

Reproduction method

Dragon boat flower propagation with sowing, pressing, cutting can be, but generally multi-use cutting method.

Folding cuttage

It is better to carry out it from June to July. Select semi-mature branches, long 10~15cm, insert into the sand bed, the appropriate temperature is 24: 30 ℃, 40-50 days after rooting. The rooting period can be shortened by soaking the cuttings in 0.5% indolebutyric acid solution for 3 seconds.

1. Environmental factors affecting rooting.

The suitable bed temperature of cuttings for rooting is 2535 ℃, and the air temperature is slightly lower than the bed temperature, about 2335 ℃. The cutting time is the best in spring and summer. In general, natural light can basically meet the rooting needs of cuttings, but in the tropical summer period of high temperature, because cuttings are easy to wilt, it is best to use spray to raise seedlings, and the cuttings should be shaded within a few days. From the beginning, the shading rate of 50% to 60% is gradually reduced to 40% 50%, and the shading should be removed after rooting.

2. Cutting of cuttings

The quality of cuttings will not only affect the quality of seedlings, but also affect the subsequent growth. For the requirements of excellent cuttings, young cuttings are cut in spring and summer, when the plant sends a lot of twigs, when it grows to 8~12cm and is not in flower, the time is better in the evening of sunny day, choose the branches that grow strong and disease-free, and the cuttings are neat in size; cuttings generally have a fresh weight of 3 to 5 grams, length 10~14cm, cuttings diameter above 3mm, cutting parts for semi-hardened branches, usually side branches or main branches cut in combination with strong pruning.

3. Treatment of cuttings

The difficulty of rooting varies with different varieties. Generally, the dwarf varieties with leaflets belong to the species with easy rooting, and the cuttings can root very quickly without treatment, while the high varieties with large leaves generally belong to the varieties with difficult rooting, and the treatment with growth hormones such as indolebutyric acid (IBA) or neoacetic acid (NAA) before cutting can significantly promote rooting. Low concentration of rooting accelerator can be used for long-term soaking or high concentration instant soaking.

4. Cutting soil

The rooting rate and emergence rate of cuttings are closely related to the correct selection of cutting soil. The standard of cutting soil is water retention, strong permeability, cleanliness and so on. At present, the substrates used for dragon boat flower cutting are perlite, vermiculite, river sand, etc., the above materials can be used alone or mixed with river sand with good permeability, but the water retention is poor, generally mixed with perlite, such as single use, it is suitable for gap spray cutting. Single perlite is suitable for dry and sunny summers. In Hainan, it is best to use a mixture of river sand and perlite, the proportion is 1:1, or with river sand at the bottom, the sand is covered with a layer of perlite with a thickness of 2~3cm.

Folding sowing

Seeds are collected in winter and sown in spring. The suitable temperature for germination is 22-24 ℃, and germinates 20-25 days after sowing. When 3-4 pairs of true leaves are produced, the seedlings can be transferred to the 8cm basin.

Folding strip

The plants with many branches and dense branches were peeled in ring from the apical 20cm and wrapped with peat and film, which could heal and take root for more than 2 months.

Cultivation techniques

Folded soil

The best cultivated soil is sandy loam or humic loam which is well drained, acidic and rich in organic matter. Before transplanting, turn the soil layer deeply, break the large soil mass, mix fully with river sand and organic fertilizer soil according to the soil structure, and reach the soil quality condition suitable for the growth of dragon boat flower; the nutrient soil of pot or bag seedling is 1 part of garden soil, 1 part of river sand and 1 part of organic fertilizer soil, or the proportion of pond mud, river sand and coconut bran is 1 / 1 / 1 / 0.5.

Folding transplanting

It is necessary to transplant cuttings after rooting. Generally, if the root length is less than 2cm, it should be removed from the cutting bed. If the root is longer than 2cm, it is easy to break the root and affect the slow root and initial growth of seedlings. Dragon boat flowerpots are commonly used to cut 10~20cm diameter pots, according to the size of seedlings and the number of plants, pot cutting plants must be neat, flowers and colors consistent. The basin is changed every 1-2 years, and the diseased branches and weak branches are cut off by plastic pruning. No matter it is the pot or the land, you should choose the place where there is plenty of sunshine. The dragon boat flower is cut in order to form blocks with quick results. Generally, potted seedlings or bag seedlings for 1 or 3 years are selected, which can be carried out all the year round and planted in places with deep soil layers. When the dragon boat flower is cut indoors in winter, it must be kept for more than 15 ℃ and can continue to grow. if the temperature is too low, it will cause the phenomenon of fallen leaves.

Folding water and fertilizer

The dragon boat flower likes to be wet and afraid of dryness, and its stems and leaves need sufficient water during the growing period to keep the basin soil moist, which is beneficial to shoot germination and leaf growth. However, if it is too wet for a long time, it is easy to cause part of the root system to rot and affect the growth and flowering. If the soil is too dry or wet when dry, and the water supply is not timely, the phenomenon of fallen leaves will occur.

Spring, summer and autumn are the growth and flowering period of dragon boat flower, and the management of water and fertilizer should be strengthened, about once every 30 to 40 days, and all kinds of organic fertilizer or inorganic compound fertilizer are ideal. When planting in the northern region, "Huiyou" 21-7-7 acid fertilizer is applied once every semimonthly. If it is found that the leaves are light green, thin and lack of luster, less flowering and lighter flower color, it is lack of light, not lack of fertilizer and water.

Control of folded leaf spot by diseases and insect pests

The disease is caused by Fusarium oxysporum. The pathogen overwinters on diseased flowers or in the soil with diseased leaves, and spreads by wind, rain or water the following year.

Prevention and control methods:

(1) Horticultural control: to meet the growth conditions of dragon boat flowers, warm and humid climate, and loose and fertile acid soil.

(2) Chemical control, start spraying at the initial stage of the disease, the agent can be sprayed with 1000 times of 50% methyl carbendazim sulfur suspension, or 50% carbendazim wettable powder, or 10% antibacterial agent 401 acetic acid.

Folding anthracnose

The disease mainly harms the leaves, the pathogen overwinters on the diseased part or the remnant of the diseased leaves, spreads by wind and rain when the conditions are suitable, invades from the wound and carries on the initial infection.

Prevention and control methods:

(1) Horticultural control: remove diseased leaves and reduce the source of infection. Proper spacing between flowerpots or plants to ensure good ventilation and light transmission.

(2) Pharmaceutical prevention and treatment: spray medicine before onset, the medicament can be selected as follows: 1 Grout 200 fold Bordeaux liquid, or 50% carbendazim wettable powder plus 75% chlorothalonil wettable powder 800 times, or 25% carbendazim wettable powder 500 times. The above-mentioned agents were sprayed every 10 days or so for 3 times in a row.

Folding shell worm

Once the shell insect occurs, it does great harm, mainly by prevention. Once the shell insect is found, it should be controlled in time without delay. The shell insect can not only hinder the growth of the plant, cause other diseases, but also affect its ornamental value.

Prevention and control methods:

(1) Horticultural control: it is forbidden to bring in or out of insect-carrying seedlings, and timely increase the application of organic fertilizer and compound fertilizer to enhance seedling potential and improve insect resistance.

(2) Drug prevention and treatment: root application of absorbent granules, such as 3% carbofuran granules, etc., the dosage is 0.5 kilogram buried in the flowerpot in diameter 20cm, and the effect period can reach 40 days. When spraying in time during the peak egg incubation period, 40% omethoate EC 1500 times and 50% aphid pine EC 1000-1500 times can be used.

Folding aphid

When aphids harm young stems and leaves, spray 2.5% fish rattan essential oil 1200 times.

How to grow dragon boat flowers? Culture methods and matters needing attention of dragon boat flower

Picture: Dragon Boat Flower

[FAQ] how to raise dragon boat flowers? Culture methods and matters needing attention of dragon boat flower

[expert answers]

1, temperature, light: Dragon boat flower is more suitable for high temperature and sufficient sunshine environment, like humid and hot climate, can not bear low temperature. The optimum temperature for growth is 2332 ℃. When the temperature is lower than 20 ℃, its growth weakens and its flowering decreases obviously, but if the sunshine is sufficient, there are still a certain number of buds; when the temperature is lower than 10 ℃, its physiological activity decreases and grows slowly; when the temperature is lower than 0 ℃, it will produce freezing injury.

2. Soil: Longhua prefers acidic soil, and the most suitable soil pH value is 5-5.5. The soil with good drainage and good fertilizer conservation can grow well, and the best cultivated soil is sandy loam or humus loam rich in organic matter. If the soil is alkaline, the growth of dragon boat flower is blocked and underdeveloped. Before transplanting, the soil layer was turned deeply and the large soil mass was broken. According to the soil structure, the soil was fully mixed with river sand and organic fertilizer soil to achieve the soil conditions suitable for the growth of dragon boat flower, while the nutrient soil of pot or bag seedlings was fully mixed with 1 part of garden soil, 1 part of river sand and 1 part of organic fertilizer soil, or the proportion of pond mud, river sand and coconut bran was 1 / 1 / 1 / 0.5.

3. Propagation method: sowing, pressing and cutting can be used in the propagation of dragon boat flower, but the cutting method is commonly used.

4. Transplanting: the cuttings should be transplanted after rooting, and the root length should be removed from the cutting bed when the root length is less than 2cm. If the root is longer than 2cm, it is easy to break the root and affect the slow root and initial growth of the seedling. Dragon boat flowerpots are commonly used to cut 10~20cm diameter pots, according to the size of seedlings and the number of plants, pot cutting plants must be neat, flowers and colors consistent. The basin is changed every 1-2 years, and the diseased branches and weak branches are cut off by plastic pruning. No matter it is the pot or the land, you should choose the place where there is plenty of sunshine. The dragon boat flower is cut in order to form blocks with quick results. Generally, potted seedlings or bag seedlings for 1 or 3 years are selected, which can be carried out all the year round and planted in places with deep soil layers. When the dragon boat flower is cut indoors in winter, it must be kept for more than 15 ℃ and can continue to grow. if the temperature is too low, it will cause the phenomenon of fallen leaves.

5. Water and fertilizer: Dragon boat flowers like to be wet and afraid of dryness, and sufficient water is needed during the growing period of stems and leaves to keep the basin soil moist, which is beneficial to shoot germination and leaf growth. However, if it is too wet for a long time, it is easy to cause part of the root system to rot and affect the growth and flowering. If the soil is too dry or wet when dry, and the water supply is not timely, the phenomenon of fallen leaves will occur. Spring, summer and autumn are the growth and flowering period of dragon boat flower, and the management of water and fertilizer should be strengthened, about once every 30 to 40 days, and all kinds of organic fertilizer or inorganic compound fertilizer are ideal. When planting in the northern region, "Huiyou" 21-7-7 acid fertilizer is applied once every semimonthly. If it is found that the leaves are light green, thin and lack of luster, less flowering and lighter flower color, it is lack of light, not lack of fertilizer and water.

Matters needing attention in the culture of dragon boat flower:

The dragon boat flower should be properly pruned after coming out of the room in spring, in order to facilitate ventilation and light, and pick the heart properly during flowering, which can make it more pregnant buds and blossom. Do not water on cloudy and rainy days in summer. In case of rain, the water in the basin should be poured out in time to prevent water from rotting roots. Move into the sunny part of the room in winter, the temperature should not be lower than 0 ℃, watering about once a week to make the soil slightly wet. Shade should be provided when the summer is hot and sunny, covering 40% of the light and 50% of the light.

[editor's comments] in addition to the above five points, leaf spot, anthrax, scale insects and aphids are the four major diseases and insect pests of dragon boat flowers, which should be prevented and controlled. The above is the article "Dragon Boat Flower Culture methods and matters needing attention" sorted out by the first Agricultural Economics Xiaobian for you. I hope it will be helpful to you.