Ginkgo biloba is a slow-growing but extremely valuable tree species. Autumn is the most beautiful season for ginkgo, and autumn ginkgo can also be grafted with abdomen technology. Xiaobian now brings everyone to learn about the ginkgo autumn abdominal technology.
First, the collection of ginkgo scion
The scion of Ginkgo biloba is collected in the middle and upper parts of the ginkgo tree crown, and the branches growing toward the sun are best. It is necessary to choose a strong and strong fruit, a large fruit, a high-quality tree as the mother plant, and a full-length bud, 1-2 years old strong branches to make the scion. The scion should be used with the harvest. If it cannot be grafted in time, the scion should be placed in a cool room and stored in wet sand for a period of not more than half a month.
Second, Ginkgo grafting technology
1. After determining the ginkgo tree that needs to be connected, cut off the top of the erect main stem, and choose to keep 3-5 branches of weaker auxiliary branches, and determine that the trunk and the main branches are high grafting sites.
2. Ginkgo grafts are grafted on the inside or both sides of 15-20 cm above the graft.
Trees below 3.5 years old can generally be connected to 4-5 branches, and trees above 10 years old can be connected to 10-15 buds, but not too much, as long as the trees have different points in different directions. The branch can be.
4. The grafting method adopts a single bud or a bud graft.
5. Ginkgo should be cut and left 25-35cm for the first time before grafting or grafting.
Third, Ginkgo biloba graft management measures
1. After two weeks of high connection, the eye can be checked for survival. For example, the bud eye is yellow-green, and the callus produced at the interface has survived. If it is not live, it can be replenished in time, or it can be reserved in spring.
2. The film-dissolving time is about 3 months in the next year. When the film is unmelted, the film is first opened when the bud is swollen, and the bud eye is exposed. When the bud is about 2-3 cm, the bud is cut at the opposite side of the interface with a bud knife. band.
3. Generally, the second anvil can be made 1cm above the bud when the bud is sprouted. The rootstock section is protected with paraffin solution or wrapped with a film. At the same time, pillars will be set up to protect the growth of new shoots.
The above is a detailed introduction of the technical content of ginkgo autumn abdominal joints. Everyone must pay attention to their techniques and operations when grafting.
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