The method of single Bud cutting of Chinese Rose

Rose flower is very popular flower viewing plants, but rose single bud cuttage due to short cutting tissue, the body stored nutrients, water are less, the operation should be careful and meticulous, can only be cut with a sharp knife, can not be cut with branch scissors, so rose single bud cuttage difficulty is relatively large.

Chinese rose

1. Cutting and pruning cuttings

According to 1 pinnate compound leaf and 1 latent bud, the semi-lignified branch is cut into a section 13~3 cm below the leaf base mark, and the part of the leaf upward to the stem can be long or short according to the actual situation. When cutting, hold the branch in one hand, hold the tool in one hand, in the selected position, vacate horizontally or slightly obliquely, do not put one side on the board or other objects, and press the tool to cut. After completion, cut off 1/3~1/2 of the small leaves with branch scissors or leaf scissors, immerse them in 1000 times solution of 75% chlorothalonil wettable powder for about 1 minute, and take them out for cuttage.

Second, cutting substrate: chrysanthemum tea efficacy and taboos

Select sandy loam, fine sand or construction sand, or add 3095^50% vermiculite, stir evenly and fill it into seedbed, or flowerpot, or shallow wooden box, or seedling shallow, compact and scrape flat, and irrigate thoroughly. With a stick, bamboo stick or metal drill tool with a diameter greater than the diameter of the cutting, a hole is vertically pierced downward on the soil surface, L is about W cm deep, and the base of the cutting is put into the hole. The base of the latent bud and leaf axis is basically horizontal or slightly deeper than the soil surface, but it should not be too deep, and the base is compacted around. The spacing of plants and rows should not overlap and influence each other.

After cutting is finished, spray with fine hole nozzle. When container cuttings, also can choose soak method to make soil wet. Shade 40%~50%. At the beginning, spray water 4~5 times a day and stop spraying at night. The natural temperature during the day is 24~28°C, and it can take root in 20~30 days. After rooting, gradually remove shade, open windows and increase ventilation. When most of the cuttings sprout and grow new branches, dig seedlings or take off pots for planting. Other reference greenhouse cuttings propagation.

Rose cuttage, rose cuttage with extremely high survival rate

Rose reproduction has asexual reproduction and sexual reproduction of two kinds. Sexual reproduction is mostly used to breed new varieties or produce rootstocks. Asexual propagation has cuttage, plant division, layering and tissue culture methods, rose cuttage propagation can not only maintain the excellent characteristics of female parents, but also simple to learn, rapid propagation, high survival rate.

Rose cuttage time: in spring and autumn can be carried out in both seasons. Spring in late April to the end of May, at this time the climate is mild, strong branches vitality, one month after planting can take root, survival rate is high. Autumn cuttings were carried out from late August to the end of October. At this time, cuttings were affected by the large temperature difference between day and night. Rooting was relatively slow, about 40 to 50 days before rooting, and the survival rate was slightly lower than spring cuttings.

Rose cuttings 1. Nursery preparation

In the sunny section, the plot with deep soil layer, loose structure, good permeability, rich humus and good drainage shall be selected as the cutting bed. Mix 200 kg of decomposed farm manure (pig manure, cow manure) and 25 kg of calcium superphosphate as base fertilizer per mu of cutting bed, and then mix 20 to 30 kg of fire ash or rice chaff ash to facilitate ventilation. In order to reduce the incidence of cuttage seedlings, the soil should be disinfected before planting: spraying the soil with 50% Tuijunte WP 500 - 800 times solution, covering it with plastic film for 3 - 4 days, and cutting 1 week after removing the film.

2. Branch selection

1 - 2 year old spring shoots or autumn shoots of the same year are selected from medium and young mother trees of excellent varieties, which are robust, plump, strong in growth potential and free of diseases and insect pests, as cuttings. This kind of branch growth substance content is high, metabolism vigor is strong, not only easy to survive, and the seedling quality is good, the price is high. When transferring branches from other places for cuttings, attention should be paid to moisturizing and shading to maintain the vitality of branches. The cuttings are about 8 to 12 cm long, and the lower leaves are cut off, leaving only the upper 3 to 5 leaves. Cut good cuttings according to 50 a bundle, its lower 5 cm immersed in 100 ppm GGR 6 solution for 1 to 2 hours, can improve the survival rate of cuttings.

3. Cutting

At the top of axillary bud 3~5 mm, cut down along 45 ° direction. Each cutting has a bud and a petiole. Only two leaves remain on the petiole, and the other leaves are cut off.

4. Substrate selection and treatment

The ideal matrix is coarse yellow sand and cinder. Yellow sand must be washed with clean water to remove ash powder, preferably disinfected with disinfectant; cinder generally over 5~20 sieve, particle pull should not be too large, the same to remove ash powder.

5. Cutting

Seedbed spread a layer of cuttage substrate, 7~10 cm thick, flat after spraying water, so that the substrate is solid inside, you can cuttage, the depth of about one-third of the length of cuttage. After the cuttings are finished, water them again, then put up a small trellis and cover them with plastic film to maintain sufficient humidity.

6. Some measures to improve survival rate

The transplant should be covered with plastic within a week. Then gradually ventilated and transparent, so that it can adapt to the external environment. If operated properly, the survival rate of single bud cuttings is above 90%. Single bud cuttings can also be used on other varieties of flowers.

Post-cutting Management of Rose

1. Arches and shade nets: plastic sheds can regulate the temperature and humidity of soil and air, shade nets can prevent direct sunlight and reduce temperature. Sunshade net transmittance of 20% to 30% is appropriate. In addition to covering the top of the seedbed shade net, but also in the east and west of the seedbed curtain shading, in order to reduce the morning and evening sunlight. The optimum temperature for Rooting is 20℃ to 25℃. If the temperature is too high, watering and ventilation can be used to cool down the roots besides covering the sunshade net.

2. Watering: cuttage early, cuttings have not yet sprouted leaves, water supply should not be too much, generally 7 to 10 days can be watered once. After a month, the spike began to take root, shoot, water consumption gradually increased, should be 3 to 5 days irrigation once. Water quantity should be decided according to soil moisture and air humidity, so that soil moisture is moderate. The best moisture condition after cuttage is that the field water holding capacity of seedbed is maintained at about 80%, and the relative humidity of air is 80% to 90%. If the humidity is too high, the watering amount can be controlled and ventilation strengthened; if the humidity is too low, the watering amount and spraying times can be increased.

3. Fertilization: the amount of fertilizer required for cuttings is not large, and base fertilizer has been applied during soil preparation, so there is no need to fertilize the soil before transplanting seedlings, but foliar fertilization should be carried out. That is, after one month of cuttage, foliar fertilization with 0.3% urea liquid fertilizer and 0.2% potassium dihydrogen phosphate liquid fertilizer was carried out alternately every half month to promote rooting.

4. Weeding: To timely pull out the weeds in the cutting bed, do not move the seedlings.

5. Seedling training: After half a year of seedling rooting, it is necessary to appropriately extend its ventilation and lighting time to improve the ability of seedlings to adapt to the external environment.

single bud cutting method of rose 1. Branch selection. Choose healthy, pest free, semi-lignified branches, to flower a week after the axillary buds did not germinate branches for the best, if the branches aging will reduce the ability to root. 2. Cutting ready. At the top of each axillary bud 3 mm to 5 mm, cut into inclined planes, each cutting has an axillary bud, only 2 leaflets remain on the petiole, and the rest are all removed. 3. Cutting substrate. Vermiculite and pearlite are ideal, its water retention is strong, good permeability, conducive to rooting, river sand can also be used. 4. Cutting techniques. Before cuttage, the cutting base should be cut into smooth horseshoe shape with sharp knife to promote callus formation. Before cuttage, the cutting base should be treated with naphthylacetic acid and indoleacetic acid solution to promote rooting. When cutting, first spread a layer of 7 cm to 10 cm thick substrate on the seedbed, spread flat after spraying water, so that the substrate compaction, cutting depth is about 1/3 of the length of the cuttings, cutting finished pouring water once, put up a shelf covered with plastic film, to maintain sufficient humidity, humidity is too large, can be adjusted by appropriate ventilation or reduce spray, the temperature in the shed should not exceed 30℃. 5. Transplanted in time. After cutting 20 days to 25 days to take root, wait for the root to grow to 1 cm to 2 cm, to transplant in time, after transplantation within a week to buckle plastic film insulation, after gradually strengthen the light and let out the wind, so that it gradually adapt to the natural environment.

latest information

Cultivation and Management of Colored Leaf Pineapple Cultivation techniques of tuberose Cultivation Techniques of Asterina chinensis

Control of seedling damping-off