High pressure and Cuttage Propagation of Rubber trees

High branch crimping, also known as high pressure, air crimping, is a method of striping reproduction. Except for rubber trees, flowers such as white orchid, Milan, rose, rhododendron, camellia, goose palm wood, weeping banyan, Zhu banana, variable leaf wood and other flowers can be propagated under high pressure. Although the operation of high branch pressing is troublesome and the reproduction rate is low, but the success rate is high. And the breeding seedlings are also relatively large. Some flower species which are not easy to root and slow to root can also be propagated by high branch pressing. Therefore, high branch pressing is the most suitable method for flower propagation in the family.

High branch crimping can be carried out in the whole growing period, but it is best from May to June in late spring and early summer. At this time, the temperature is more suitable, and the plants are growing vigorously. So it's easy to take root. And can send out more roots at the end of summer. it is beneficial to the growth and overwintering of the plant after cutting F. If the time is too late, the plant has not yet taken root, or just rooted, the temperature has been reduced, which will not be conducive to the survival of high-pressure plants and the growth of high-pressure plants. The high branch crimping first selects the strong branches that have been growing for more than two years on the parent body, and carries out circular peeling in the lower part of the place where the striping is needed, and the width of the ring peeling depends on the thickness of the branch, which is generally 1 / 2 times the diameter of the branch. The phloem of the part can also be damaged by scratching, lead wire peeling or twisting.

Culture methods and propagation of Indian rubber trees

Indian rubber tree is a mulberry banyan tree, up to 20-30 meters high, DBH 25-40 cm; bark gray-white, smooth; epiphytic when young, branchlets stout. Achene ovoid, with small tumors on the surface, style long, persistent, stigma dilated, subcapitate. Flowering in winter. Originated from Bhutan, Sikkim, Nepal, Northeast India (Assam), Myanmar, Malaysia (northern), Indonesia (Sumatra, Java). China's Yunnan (Ruili, Yingjiang, Lianshan, Longchuan) is wild at 800-1500 meters.

Morphological characteristics of Indian rubber tree

Trees, to 20-30 m tall, 25-40 cm DBH; bark gray-white, smooth; epiphytic when young, branchlets stout. Leaves thickly leathery, oblong to elliptic, 8-30 cm long and 7-10 cm wide, apex acute, base broadly cuneate, entire, surface dark green, bright, abaxially light green, lateral veins numerous, inconspicuous, parallel exhibited; petiole stout, 2-5 cm long; stipules membranous, crimson, up to 10 cm long, with obvious annular scar after shedding. Figs are paired in leaf axils of deciduous branches, ovate-long-oval, 10 mm long, 5-8 mm in diameter, yellowish green, basal bracts cap-shaped, with a ring at the base after shedding; male flowers, gall flowers, female flowers co-growing on the inner wall of figs; male flowers stipitate, scattered in the inner wall, tepals 4, ovate, stamens 1, anthers ovoid, without filaments. Gall flowers: tepals 4, ovary smooth, ovoid, style subterminal, curved; female flowers sessile. Achene ovoid, with small tumors on the surface, style long, persistent, stigma dilated, subcapitate. Flowering winter

Distribution range of Indian rubber trees

Originated from Bhutan, Sikkim, Nepal, Northeast India (Assam), Myanmar, Malaysia (northern), Indonesia (Sumatra, Java). Yunnan (Ruili, Yingjiang, Lianshan, Longchuan) is wild at 800-1500 m.

Indian rubber tree growing environment

Sex likes high temperature, humid, sunny environment, but also can withstand shade but not cold. Suitable growth temperature 20 ℃ 25 min, avoid direct sunlight. Can also endure shade but not cold, safe overwintering committee immediately tail 5 ℃. Resistant to air dryness. Avoid clayey soil, do not tolerate barren and drought, prefer loose, fertile and slightly acidic soil with good drainage.

Propagation methods of Indian rubber trees

The main propagation methods of Indian rubber trees are cutting and striping. Cutting is relatively simple, and the survival rate and growth rate of rubber trees are also relatively high. Generally speaking, rubber tree cutting is mainly carried out in late spring and early summer combined with pruning. The sturdy branches in the middle of the rubber tree were selected as cuttings, and the cuttings retained three buds, and the glue at the front of the cuttings should be condensed, or some charcoal ash and rice chaff ash could be selected and dried, and then cut on the cutting bed with river sand or vermiculite as substrate to keep the growth environment of the cuttings between 18-25 ℃. The cuttings can take root in about 30 days. When the cuttage rubber tree has two leaves, it can be transplanted into the pot.

The survival rate of rubber tree propagation under high pressure is very high. When pressing the strips, it is best to choose the branches that grow in the second year. First, the branches of the rubber tree are girdled and peat, then wrapped in moist moss or plastic film or peat soil. After the rubber tree takes root, the branches that take root are cut off and loaded into the soil to grow into a new rubber tree.

Selection of cultivation soil for Indian rubber trees

Potted peat soil, rotten leaf soil plus 1x4 river sand and a small amount of base fertilizer can also be used as fine sand. Rubber trees grow faster and like to be fertilized once a week. Usually change pots or soil before new shoots grow in spring. When the seedlings are 80 cm ~ 100 cm high, coring can promote the germination of lateral branches as needed. Usually leave 3 main branches and get rid of the other redundant branches. If cultivated for 3 years or so, it can grow into a large plant of 2 meters.

Rubber trees like strong sunshine from spring to autumn. The whole festival season is planted in the sun. In winter, it should also be placed in the place with the strongest sunshine indoors. If you put it indoors and watch it, you can't change it for too long every 2 weeks or so. Rubber trees grow very fast in high wet and humid environments and produce a leaf every 5 to 7 days. Adequate fertilizer and moisture must be ensured during this period. In autumn, fertilization and watering are gradually reduced to promote the growth and fullness of branches.

Because rubber trees have strong resistance to dry environment, it is easier to cultivate in North China. It should be kept in a room above 10 ℃. Long-term low temperature and damp basin soil can easily cause root rot. Move to outdoor cultivation from the end of April to the beginning of October every year

Culture methods of Indian rubber trees

1. Temperature

Like warmth, the most suitable temperature for growth is 20-25 °. It is resistant to high temperature and can grow well when the temperature is above 30 °. The cold tolerance of variegated leaf varieties with 5 °overwintering temperature was slightly worse, and the overwintering temperature was better maintained above 8 °0. A large number of fallen leaves will be produced when the temperature is low.

2. Lighting

Like bright scattered light, have a certain ability to withstand shade. Can not bear the exposure of strong sunlight, when the light is too strong, it will burn the leaves and appear yellowing and scorched leaves. Should not be too overcast, otherwise it will cause a large number of fallen leaves and dilute the beautiful patches of variegated varieties. From May to September, shade should be provided, or the plant should be placed in a place with sufficient scattered light. The rest of the time should be given plenty of sunshine.

3. Watering

Like the moist soil environment, the growth period should be fully supplied with water to keep the basin soil moist. Watering needs to be controlled in winter. when the basin soil is too wet at low temperature, it will easily lead to root rot.

4. Environmental humidity

Like the humid environment, when the growing season is sunny and the air is dry, you should often spray water to the branches and leaves and the surrounding environment to improve the relative humidity of the air.

5. Fertilization

Because of the rapid growth, nutrients should be supplied in time to make the plant flourish and grow. Nitrogen-based fertilizer should be applied 2-3 times a month. The species with colored markings grow slowly, which can reduce the number of fertilization and increase the application of potash fertilizer to make the speckle color on the leaf surface bright. If excessive or simple application of nitrogen fertilizer, the color of the markings will become lighter, or even disappear. In September, the application of nitrogen fertilizer should be stopped and only phosphorus and potassium fertilizer should be applied to improve the cold resistance of the plant. Plant dormancy in winter, fertilizer should be stopped.

6. Pruning

Pruning in spring combined with coming out of the shed, delete the bifurcated branches, introverted branches, withered branches and weak branches inside the crown, and truncate the branches protruding from the crown, so as to make the interior of the plant ventilated and transparent and keep the tree shape round. If the crown is too large, the outer branches can be truncated as a whole. Dense branches and short truncated branches should be removed at any time during growth.

7. Turn the basin

The basin usually needs to be turned once every 2 years. Like the sandy loam with fertile, loose and good drainage, the matrix can be prepared with garden soil, rotten leaf soil and plain sand, and mixed with farm manure as base fertilizer.

8. Pest control

There are leaf spot disease and red spider, banyan thrips, shell insects and other diseases and insect pests.

How do potted rubber trees reproduce? Introduction to the propagation methods of rubber trees

Rubber tree is of high ornamental value and is a famous potted foliage plant, which is very suitable for indoor beautification. Small and medium-sized plants are often used to beautify the living room and study; medium and large plants are suitable for being arranged on both sides of the foyer of large buildings and in the center of the lobby, which is majestic and magnificent. It can reflect the tropical scenery, and rubber trees are commonly used in cutting and high-pressure propagation methods.

Cutting culture is relatively simple, easy to survive and grow fast. It is generally carried out in late spring and early summer combined with pruning. Select the middle branch of annual Lignification as cuttings, cut off the lower leaf with three buds, close the upper two leaves and tie them with plastic, or cut off half of the upper leaves to reduce water evaporation; in order to prevent the loss of too much milk from the cutting mouth and affect survival, the wound should be smeared with plant ash in time; the treated cuttings should be cut in a bed based on river sand or vermiculite. Keep the plug-in bed with high humidity after insertion, and often sprinkle water to the ground (but not stagnant water) to improve air humidity. Under the condition of 18 Mel 25 ℃ and semi-overcast, it can take root after 2 Mel for 3 weeks.

It is also convenient to use high pressure in the family, and the success rate is also high. Select biennial branches under high pressure, first peel 1 Mel 1.5 cm wide around the branches, then wrap them around the wound with wet moss or peat soil, and finally wrap them with plastic film and bind the upper and lower ends. 1 after 2 months, the rooting branches can be cut off and put on the basin.