The latest breeding methods of Magnolia

Magnolia, also known as Magnolia, Magnolia, etc., is a famous ornamental plant and traditional flower of Magnoliaceae. It is native to the provinces in central China. It is very sensitive to temperature and has a certain resistance to low temperature. It can survive the winter safely under a 20C condition. The main propagation methods are sowing reproduction, grafting propagation, cutting propagation and striping propagation. Let's take a look!

Magnolia magnolia sowing and propagation

Magnolia is the most suitable for autumn sowing. When the seeds mature from September to October, they can also be sowed in March-April of the following spring. Soak the seeds with warm water of about 50 ℃ before sowing, remove the waxy layer outside the seeds and remove the waxy layer, which can be rubbed with sand or soaked in 0.5% alkali water or plant ash water for 1-2 days. After sowing, cover 2 cm of soil, water thoroughly, cover grass, and often keep the soil moist. Generally, seedlings can emerge after about 2 months. Shade is needed in summer, anti-freezing in winter, and separate planting after soil thawing in the following spring.

Grafting propagation of Magnolia

Grafting propagation is the most commonly used method for propagation of Magnolia. It can not only maintain the quality of excellent varieties, but also blossom 2-3 years earlier than seedlings. 2-3-year-old Magnolia seedlings should be selected as rootstocks during grafting, and budding should be carried out from July to August. Cutting is carried out in autumn. After cutting, the scion should be covered with soil, and the soil should be removed in the late spring of the next year. It can also be cut and grafted in the greenhouse (autumn or winter), and then stored in wet sand. After the graft is healed, it will be transplanted before germination in the following spring.

Cutting propagation of Magnolia

Magnolia is not easy to take root and has a low survival rate, so this method of propagation is rarely used. However, if the base of the cuttings is stained with rooting powder or soaked in 25ppm's Tsai acetic acid solution for 20 hours before cutting, it can promote rooting and improve the survival rate. Cutting in June-July, cuttings are collected from the annual branches of Magnolia magnolia mother plant. The cuttings are 15 cm long and 2 leaves are reserved at the upper end. After cutting, we should pay attention to shading, watering, and often keep the soil moist.

Magnolia striping propagation

Magnolia crimping propagation is also used in more ways of reproduction, mainly divided into ordinary striping and high branch crimping.

1. Ordinary striping: ordinary striping is best carried out in February-March, cut the base of the branch to be taken into half the depth, then cut a section upward, and then stick a tile in the middle, then gently press it into the soil without breaking it, insert it into the soil with "U"-shaped thick iron wire, fix it, prevent it from warping, then pile it on the soil, press it in spring, and cut it apart after sending out root buds.

2. High branch pressing: select strong and disease-free twigs (1.5-2 cm in diameter) on the mother plant before entering, cut the cracks in the lower part of the basin fork, then cover them with bamboo tube or bottomless tile pot, fill them with culture soil, tie them tightly with string on the outside, be careful not to touch them, often spray a small amount of water, keep them moist, and grow new roots around May of the following year.