Grafting technique of Pinus elliottii Bonsai

Grafting of Pinus elliottii has been on the rise for a long time, because this technology is simple, low-cost and effective, so grafting has been very common. Although the technique is simple and easy to learn, the survival rate of grafting is not high at present.

Some because of the variety difference between the scion and the old pile, lack of affinity; some because the growth of the scion is too weak, dehydration and death occurs after hanging on the stump; some because the grafting technology is not strong or maintenance management is not in place, and so on. More than 10 grafts are often grafted on a tree, but only about half of them survive. Although the survival rate of this kind of grafting is not high, it is also the most effective way to make the transplantation of Siraitia grosvenorii plump quickly.

Grafting process:

The main results are as follows: 1. The tools and materials that need to be prepared before grafting are one-sided blades, because they are sharper and thinner than the grafting knife; plastic fresh-keeping bags are used for moisturizing the scions and grafting parts; medical disinfection alcohol is used for the disinfection and sterilization of grafting blades; nylon rope is used for binding scions.

2. In the method of tender branch grafting, the 2-year-old big-leaf Luohan pine was used as the rootstock, and the rootstock was pruned properly before grafting, such as opposite branches, head-on branches and other branches that were not conducive to modeling, and then the tender shoots of Siraitia grosvenorii were selected, 3 cm and 4 cm were used as scions, and the over-long parts could be reserved for later use. The cutting method of scion is the same as conventional grafting. Special attention should be paid to aligning the scion with the cambium of the rootstock, and if other operations and post-grafting management are properly managed with other grafting methods, the survival rate can reach about 95%.

3. The rootstock of high branch grafting method uses the larger big leaf Pinus elliottii, and the rice leaf Pinus elliottii is grafted by the cutting method where the branch is needed. The specific operation is the same as the general splicing method. However, the survival rate of this grafting method is relatively low, so multiple scions need to be grafted around the same branch site.

4. The abdominal grafting method takes 2-year-old or 3-year-old large-leaf Pinus elliottii as rootstock, and the specific operation and management are the same as the five-needle pine grafting method. If this grafting method is managed properly, the survival rate can reach about 90%. No matter which of the above methods are used for grafting, it is necessary to bag and moisturize the scion. Although the grafting of Pinus elliottii can be carried out all the year round, if it is carried out in the hot summer and cold winter seasons, extra care is needed in management to ensure the survival rate. I think that when the grafting technique is not skilled, it is better to use 2-3-year-old big-leaf Pinus elliottii for abdominal grafting, and then shoot grafting or shoot high grafting from April to July, which is beneficial to improve the survival rate of grafting.

Time: 2019-06-12 Click: