A Detailed Introduction to the Latest Durian Propagation Methods

Durian is mainly distributed in the tropical provinces of our country, where its planting area is very extensive. Many friends generally use the sowing method for propagation when planting, but durian has great genetic variability, and different seeds may grow into different fruits. Their quality varies, which is very unfavorable for fruit growers. So what other propagation methods does durian have? Below, the editor brings you propagation methods other than sowing propagation. Let's take a look!

1. Bud grafting propagation

First prepare the rootstock for propagation, controlling the diameter at about 2-3 cm, then at a position about 10 cm above the ground on the rootstock, cut it open vertically from top to bottom by about 1 cm, and pull it open by about 4 cm. Then make a horizontal cut at the upper part of the slit, scrape open the bark, and ensure it matches the size of the bud piece. A small amount of bark should be retained at the lower part of the cut to support the bud piece. The treatment of the bud piece is similar to peeling the rootstock bark. After combining the bud piece with the rootstock, tie it tightly with plastic film. The graft union should not be exposed to water within 2 days. After about two weeks, observe whether the grafted seedling has survived. After it survives, cut off the upper part of the rootstock at a position about 28 cm from the grafted bud to promote growth. The rootstock will gradually grow branches, and attention should be paid to the growth of the branches, pruning regularly to avoid affecting the growth of the grafted bud.

2. Cutting propagation

Choose healthy branches free of pests, diseases, and wounds as cuttings. Keep the length of the shoot at about 16 cm, with a diameter not exceeding 3 cm, and retain about one-third of the leaves on each shoot to prevent excessively rapid water evaporation. Then cut the base of the shoot at an angle of about 45 degrees, apply a layer of rooting agent, and insert it into the cutting substrate. During seedling raising, there should not be too strong light, and water should be added appropriately. If the leaves have not fallen off after about two months, it means the cutting has taken root, and at this time it can be transplanted appropriately.

3. Side grafting propagation

Side grafting propagation also requires selecting a good rootstock, keeping the rootstock lignified and the cortex easy to peel off, reasonably choosing the insertion point, and making the cut similar to bud grafting. However, we should choose a young shoot about 11 cm long, without leaves, and not lignified as the scion. Then make a diagonal cut on the scion, with a length not exceeding the rootstock cut, and insert it aligned into the rootstock cut. Then tie it tightly with a plastic strip, wrap a layer of plastic film on the outside, and adjust the temperature so that it is not too high. After about half a month, cut open the plastic film, but do not cut the plastic bag short, at least until the shoot has grown.

4. Layering propagation

Layering propagation has no seasonal requirements. Choose a branch slightly longer than the diameter of a cutting, and from its base, perform girdling at a position of about 38 cm. After girdling, remove the cambium at the cut to prevent the cortex at the cut from recovering and failing to take root. Then wrap a layer of wet soil at the cut, wrap it with plastic film, and tie both ends tightly to prevent air leakage. After about three months, roots form at the cut. Separate it from the mother plant, then cut open the plastic film and plant it in the seedling bed. After about two months, it can be transplanted, but its survival rate is not high, so it is not recommended for everyone to use.

The above is a brief introduction to durian propagation methods. In durian propagation production, they should mainly be used reasonably according to the planting scale and direction. For example, layering propagation is not suitable for large-scale planting. Layering propagation has a low survival rate and will have a relatively large impact on planting benefits. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!