What are the propagation methods of five-needle pine?

Five-needle pine generally refers to the Japanese five pine needle, is a kind of tree-shaped beautiful tree. It originated in Japan and is now widely planted in the Yangtze River Basin in China. What are its breeding methods?

What are the propagation methods of five-needle pine?

1. Grafting

The main results are as follows: (1) the selection of rootstock selects the old pile of black pine with the embryonic form of bonsai. The branches that accept grafting on the rootstock are generally the best ones that do not have scales under the age of six or seven. Generally speaking, the best grafting time is from mid-February to early March before the bud will germinate.

(2) the buds and branches of scions should be strong. The main bud is the best, and the branch with 3 branches is the best. The number of buds and branches grafted on the general black pine rootstock is determined according to the size of the crown and the length of the branches of the rootstock. Generally speaking, the long branches of rootstocks can take 3 to 5 scions, and one short one is enough.

(3) it is easy to manage bud grafting after grafting, that is, it is placed in the open air without shading. In case of spring drought, spray water on the tree crown properly. After branch grafting, move the basin into the greenhouse or plastic shed and spray frequently to keep it about 80% high moist.

After the grafting survived, it is necessary to control the growth of the branches of the rootstock, and cut off all the branches of the rootstock when the branches of the five-needle pine are about to grow to match the size of the trunk of the rootstock.

two。 Sowing seeds

(1) the seeds should be treated before sowing, such as the stratification of sand reservoir. The seeds can also be soaked in warm water of 50 to 60 degrees. Generally, the treated seeds can be sowed by sowing or strip sowing.

(2) when it grows into a seedling, build a shade canopy to keep the soil moist to avoid sudden collapse. If you raise a seedling in a container, you should also carry out a transplant, so as to ensure the survival rate and suit its growth characteristics, so if you want to plant on a large scale, you can choose places with good drainage and irrigation conditions, flat terrain and convenient transportation. This can also effectively reduce costs.

Generally, it is recommended to use the method of grafting to propagate the five-needle pine, so that its mature time will be shorter, and the variety chamber pot is better.