The propagation method of the latest rich tree

The rich tree is a popular potted plant, which has been widely used in urban and rural families in China after cultivation and breeding in recent years. The breeding methods are generally divided into three types: sowing propagation, cutting propagation, and grafting reproduction. Let's take a look at the breeding methods of the rich tree.

Sowing and propagation of rich trees

Rich trees are used to sow and propagate. It is appropriate to sow with fresh seeds, pick after ripening in autumn, remove the seed shell and sow. Cover the fine soil about 2 cm thick after sowing, then place it in a semi-shady place to keep it moist, and germinate about 7 days after sowing. The germination temperature is 22 ℃ 26 min. The seedlings grow to about 25 cm, which can be dense and sparse, so that the seedlings can grow evenly. The seedlings grew rapidly, and nitrogen fertilizer and phosphorus and potassium fertilizer should be applied thinly and 2 Mel 3 times at seedling stage to promote the expansion of stem base.

The seeds of the rich tree can be sowed when the temperature is above 20 ℃, and the germination rate is quite high. Compared with the cuttage potted plants bought, the rich trees sown by themselves are easier to maintain.

Grafting propagation of rich trees

Rich trees generally blossom and bear fruit 8 years after sowing, and if they want to blossom and bear fruit ahead of time, two-year-old braided seedlings can be selected as rootstocks, and scions can be selected from one-year-old sturdy branches on evaluated flowering trees. In mid-late February, the split method was adopted, and the survival rate reached 80%. The rich tree blossoms in the second year after grafting, but it can blossom and bear fruit five years ahead of schedule.

Cutting propagation of rich tree

1. Cuttings collection: select the semi-lignified branches of the same year with strong growth, no diseases and insect pests and good characters, cut in cloudy days or windless mornings, the cutting length is 6 to 7 cm, and the lower incision is horseshoe-shaped, located under leaves or axillary buds. The incision should be smooth, conducive to the formation of healing tissue. Generally speaking, each insert has 2 palm leaves. Be careful not to hurt the leaves to facilitate photosynthesis.

2. Timely cutting: from late June to early August, it should be cut in the morning and evening. Before cutting, soak 1/2 of the cuttings in ABT rooting solution (1) of 25PPM for 20 to 24 hours, remove and rinse with clean water. Punch a hole in the border with a small stick, then insert it along the hole, and then seal the hole and compact it. Cuttings can be cut straight for a short time, and can be cut obliquely when the cuttings are longer. The cutting depth is not skewed, generally 3 to 5 cm. Pour water in time after insertion, straighten the incorrect inserts, cover them with plastic sheeting, and compact them with soil.

3. Seedling management: the environmental conditions suitable for rooting should be ensured after cutting. Generally, the soil temperature is 3 ℃ to 5 ℃ higher than the air temperature, the relative humidity of the bed air is maintained at 80% to 90%, and the lighting requirement is 30%. Once or twice a day, the temperature is high and the water evaporates quickly from June to August. Spray water with a fine spray bottle in the morning and evening, and the temperature is kept between 23 ℃ and 25 ℃. After the seedlings survived, topdressing in time, mainly quick-acting fertilizer, nitrogen and phosphorus fertilizer in the early stage, proper coordination of nitrogen, phosphorus and potassium in the middle stage, and in the later stage, in order to promote the Lignification of seedlings, 0.2% potassium dihydrogen phosphate could be sprayed before the end of August and the use of nitrogen fertilizer could be stopped. Generally, calli were produced in about 15 days, and began to take root in about 30 days.