Mulberry twigs and tender shoot cuttings

Fusang also known as Zhu Xi and Fosang, is an evergreen shrub of the Malvaceae family and is produced in the southern part of China. There are many varieties of flowers, of which the double-flowered hibiscus blooms year-round, with large flowers and beautiful flower postures. It is often planted in courtyards in the south and is The northern part is a potted plant, a famous ornamental plant. As the seeds are more difficult to obtain and the seedlings are highly variable, the seedlings grow slowly. Therefore, its reproduction is mainly based on cuttings. Cutting propagation has the advantages of easy material acquisition, rich materials, stable seed generation, stable reproduction, rapid growth, and early flowering. After years of experimentation by the author, it has been proved that the rooting rate and rooting rate of the tender twigs in plastic greenhouses in the greenhouse are high, and it is a good method for rapid and efficient reproduction of mulberry.

Condition preparation

Build a small plastic shed 0.5m high and 3m to 5m long on the ground of the greenhouse. Keep one end open when the membrane is buckled, and use other bricks to secure the other end so that the light, temperature, and humidity in the shed remain stable. . The cutting matrix was made of vermiculite and perlite in a volume ratio of 1:1, and was filled with plastic seedlings of 10 cm in diameter and 10 cm in height, and was poured into water and placed on the surface of the shed.

Rooting agent preparation method is: Accurately weigh 0.5g of pure butyric acid plus 95% medical alcohol 50ml dissolved, add distilled water, and dilute to 1L with distilled water.

Cutting

All seasons can be cuttings, cuttings should be carried out in the morning or evening or cloudy days, with mining plug. Select a robust plant with many new shoots and a large amount of growth, and collect semi-lignified shoots free of pests and diseases. The new shoots are cut to 10 to 15 cm, leaving 3 leaf cuttings (Fig. 1). In order to save material, they can also be cut into short cuts. The effect is also very good (Fig. 2). Cut the base of the insert 3cm in the rooting agent for 2 seconds before cutting (Figure 1), and dry it for 1 to 5 minutes. Before the insertion, the substrate must be drilled with bamboo sticks slightly thicker than the cuttings, 3 to 4 cm deep, and the cuttings should be inserted. After the insertion, the gap in the orifices should be squeezed, and each cutting should be cut into 1 cutting (Figure 3). ), make the leaves stretch as much as possible. Immediately after the cutting, spray and swell again, then sprinkle with 2000 times the appropriate amount of carbendazim solution, disinfect, and buckle the small plastic shed film (Figure 4).

Rooting period management

The well-controlled rooting environment is an important part of the success of cuttings, ensuring that the temperature in the shed during the day is between 25°C and 29°C, at night higher than 15°C, and relative air humidity between 80% and 90%. Through the control of the greenhouse environment, the stability of the small environment in the shed is ensured, and the sunshine in the winter is mild. The temperature is adjusted by using windows, ventilation, cooling, and closing the windows. In summer, the sunlight is strong and the high temperature is difficult to control. In addition to ventilation, the shaded net is covered with a certain light transmittance in addition to ventilation (generally, the light transmittance is 30% to 50%), and the sunny day is the air temperature in the booth. When the rise is fastest, at this time we must do a good job of spraying water to cool down, observe temperature changes and often spray water outside the shed. Also check the slotting machine regularly to get rid of dead plants and rotten leaves. At the beginning of the first week, the insertion of the mattress requires maintaining the air humidity above 90%, and then gradually reducing; after 15 days of cutting, callus formation begins, and rooting occurs within 20 to 25 days. When the root length of most of cuttings grows to 1.5~2.0cm, the seedlings are gradually uncovered, and water is sprayed only for a short time at high temperature at noon. 0.5% urea+0.1% potassium dihydrogen phosphate is used as foliar fertilizer, spraying in the evening, 7 Sprayed once a day. After 15 days of hardening, the leaves of new shoots sprouted and turned green, and then plastic sheets and shading nets were peeled off. It usually takes 40 to 45 days from cuttings to transplanting.

Transplanting

When the root system grows to more than 6cm (Figure 5), brown old roots have already formed. At this time, the stress resistance of the cutting seedlings is improved, and transplanting can be carried out in a timely manner. Transplanting is best done on a cloudy day. Choose open field plants. It is good to make it flat (1.2m5.0m) in advance. In order to prevent the emergence of blight, sprinkle carbendazim (3~5g/m2) on the surface and then use the leveling rake to open the planting ditch with a depth of 10cm, and arrange the seedlings in rows of 10cm. Make the roots exposed to the sun as short as possible, spacing 30cm, 3 lines per line (150 strains/inch), irrigating the water, and using shade nets. After sunny days and windy days after transplanting, spray water at the noon for 3 to 4 times at the noon. When the soil hardens slightly, timely remove the shady net with a small amount of loose soil. After 20 days of transplanting, remove the shading net, and then timely grazing, watering, topdressing and spraying.

After planting strong

The newly planted seedlings are weak in disease resistance and grow slowly and require foliar fertilizer. The specific method is to spray once per week from the first week after planting. The formula is 0.5% urea plus 0.2% potassium dihydrogen phosphate and 0.05% micronutrient fertilizer. (Including boric acid, zinc sulfate, EDTA chelated iron), the seedlings are quickly eased, the leaf color becomes dark green, the thickness increases, the photosynthesis ability is significantly improved, and the growth is robust.

Northern Management

In the northern region, after rooting, it is appropriate to use plastic seedlings to plant roots. After 2 months of cultivation, the roots are covered with soil and should be transplanted into pots and pans. The peduncle was not tolerant to low temperature, and the plant growth was inhibited at temperatures below 15°C, and it was easy to fall flowers. The leaves below 5°C quickly wilted. The open field seedlings should be planted before the beginning of September, and the Beijing area should be moved outside from the outside when the weather turns cold in the middle or late September. It is necessary to overwinter in the greenhouse. Winter conditions such as temperature are guaranteed and can be kept constant. The pests, aphids, scale insects and whitefly were most common. They were sprayed with 3000 times 1.8% abamectin or 2000 times liquid beta cypermethrin, and the yellow stick board also had certain effects.

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Appearance

1) Color: Red or deep red oval dried berry 
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Model Number

Second grade: 500grains /50gram, according to GBT18672-2014

Country of Origin

ZHONGNING, NINGXIA, CHINA

Package

5kg in aseptic bag, and two bags per paper carton

Storage

Normal temperature for 12 months.

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