How to propagate rubber trees?

Rubber trees can survive only in high temperature environment, and should maintain a steady soil temperature, and the cutting survival rate is the highest from late May to mid-June. The primary tender wood cuttings are easy to rot, the old wood cuttings are not easy to produce callus, and it is difficult to root. Some branchlets are often sprouted from hidden buds on the large lateral branches of perennial plants, and their growth rate is slow, the internodes are short and have terminal buds, and the tissue is more abundant. Cutting them directly from the cortex close to the mother branch at the base has a high survival rate and forms faster because of the terminal buds.

When pruning rubber trees, many long branches are cut off every year, which can be used for cutting. First cut off the tender tip of the long branch, then press 3 sections to disconnect, and immediately seal the cut with plant ash to prevent milk overflow. At the same time, cut off the lower leaf, keep a leaf at the apex, or roll it into a tube and tie it with a string, or cut it off. The depth of the soil is 3-4 cm, and it is easy to rot if it is too deep. Due to the shallow insertion, the leaf left behind is relatively heavy, and the cuttings are easy to lodge, so it is best to insert a Reed pole to tie up and support.

How to Cuttage Hevea brasiliensis

The low survival rate of cutting propagation of rubber trees makes many friends have a great headache, so how to reproduce rubber trees? Next, Xiaoqi will talk about the propagation methods and cutting propagation skills of this rubber tree, so that we can improve the success rate of rubber tree cutting propagation.

I. Propagation methods of rubber trees

Rubber trees are generally propagated by cuttings and striping. During the growing period of spring and summer, the middle and upper biennial robust branches should be selected as cuttings. Cut in autumn, select the Lignified branches of the current year as cuttings. As long as the bed temperature can be kept above 15 ℃, the cutting time is unlimited. In addition to cutting in the bed, water cutting can also be carried out. From April to May, take the long branches of the same year's 15cm, remove the lower leaves, wait for the cut to dry, insert them into a glass bottle filled with water, put them in the place of scattered light, change the water once a week, and take root after about one month.

Second, cutting propagation techniques of rubber trees.

1. Cutting time: the cutting time is high in summer, and the air humidity is relatively high. Generally, it is appropriate to cut cuttings from the end of June to the end of July.

two。 Selection of cuttings: the quality of cuttings directly affects the survival rate of cuttings, so it is necessary to strictly select cuttings to be cut, generally choose sturdy branches that grow every other year and are completely lignified at the end of the surface as cuttings. This kind of branch has sufficient nutrients, so it is easy to take root and has strong disease resistance. On the other hand, it is not easy to take root if you have chosen ten woody strips and it is difficult to survive, while the branches that are too tender are easy to rot.

3. Preparation before cutting: alcohol lamp (or a cup of boiling water) sterilized cans (boiled with water), one cutting bed, can be replaced by a wooden box (the length of the wooden box depends on the number of spikes, the depth is 15 cm), the bottom of the wooden box is evenly drilled into small holes by carpentry to facilitate water penetration. Lay 5 cm thick coarse river sand (rinse it with water), cover it with 10 cm thick fine river sand (also need to be washed with water), pour enough water with a spray can, and make a cover with plastic sheet, iron wire or wood square. its height is 35ml and 40cm, which is slightly longer than the wooden box used in the cutting bed.

4. The operation method of cutting:

a. Quickly cut the selected strong branches into sections of 12-15 cm and quickly burn the cut place on the alcohol lamp (or scald it in boiling water). Burning (scalding) time: the white sap of the rubber tree does not continue to overflow (note: this is the key to the survival of cuttings, the purpose of burning or scalding the cutting place is twofold, one is that the sap can not continue to overflow after burning or scalding. So as to ensure that there are sufficient nutrients and water in the cuttings for its survival. The second is to prevent the sand or air bacteria from the cutting bed from infecting the wound and causing decay)

b. Remove the extra leaves and there are only two leaves left. Put it in a canned bottle and fill it with fresh water (the water should be dried 3 days in advance) and put it in a sunny place. Give the water to the leaf dough 3 times a day, lower the temperature, and change the bottle of water every 4 days. In the high temperature and sunny weather, the cuttings can produce white roots in 10 days.

c. When the root grows to 3mi 5mm long, it can be implanted into a wooden box full of river sand, with a depth of 7mi 9cm, which should be inserted directly. After spraying enough water, cover with plastic cover and spray clean water once in the morning and evening every day.

D.10 after 15 days, the cuttings can be transplanted into a flowerpot in plain soil and placed in a shady place. Half a month later, the cuttings can be rooted, the extra axillary buds can be removed, two can be left, and some thin fat water can be poured, gradually moving from the shade to the full light.

The above is the introduction of rubber tree propagation methods and cutting propagation skills. If you want to improve the success rate of rubber tree cutting propagation, you should read it carefully.

The method of cutting (branch cutting) of rubber trees.

Cutting time of rubber tree

Rubber tree cuttings are selected in summer, when the air humidity is relatively high, it is generally appropriate to cut cuttings from the end of June to the end of July.

Selection of cuttings of rubber trees

The quality of cuttings directly affects the survival rate of cuttings, so it is necessary to choose suitable cuttings. Generally choose the sturdy branches that are born every other year and whose surface is not completely lignified to do cuttings. This kind of branch has sufficient nutrients, is easy to take root and has strong disease resistance. On the contrary, if you choose the branches that have been lignified, it is difficult to survive.

Preparation before cutting rubber trees

Need to prepare an alcohol lamp, sterilized cans (boiled with water) several, basin soil or can be replaced by wooden cases (the length of wooden cases depends on the number of spikes, 15 cm deep).

Spread 5 centimeters of coarse river sand in the container before cutting, then spread a layer of 10 centimeters of fine river sand and pour enough water to set aside.

Use plastic wire to make a cover larger than the container and use it to moisturize after cutting.

The operation steps of rubber tree cutting

Cut the sturdy branches of the rubber tree into 12cm and 15cm, then burn the cut place on the alcohol lamp (or burn it in boiling water). The rubber tree no longer gives off white branches and leaves.

Cut off the extra leaves on the branches and leave 2 to 3 leaves to avoid wasting excess nutrients.

Insert the weaving field into the water, put it in a sunny place, spray water on the leaves 2 or 3 times a day, and change the water every 2-4 days. White roots can be produced in 8 days and 10 days. (hydroponic rooting can improve the survival rate of cuttings)

When the water bacon grows to 3 cm to 5 cm, insert the branches into the prepared basin soil at a depth of 7 cm to 9 cm, keeping the branches upright. Cover the cuttings with a plastic cover to moisturize. Spray water once every morning and evening.

The fixed heel can grow in about half a month, wipe off the excess buds, pour some fat water, and gradually transfer from the shade to the full light. Slowly, new leaves will grow!