Ginkgo autumn belly connection technology

1. Scion collection selection is strong and stable, high yield and stable yield, large fruit size, high quality, good taste, strong resistance, strong trees with 30-year-old age, strong growth, full shoots, strong 1-2 year old shoots Do the scion (if the large white orchard is required to have 60:1 males), the scion collected from the middle of the crown and the upper part of the sun is the best. Scion should be used with the use, if not timely grafting, scion should be scattered into a cool room with wet sand storage, storage time does not exceed 15 days. Second, grafting technology to determine the need for high access to ginkgo trees, cut off the top of the upright trunk, choose to leave 3-5 branches weaker auxiliary branches short cut, and to determine the main branch and the main branches of high grafting position. Grafting is performed on the inside or both sides (to avoid the outside) of the 15-20 cm above the graft. The following five-year-old trees generally receive 4-5 branches, 7-8 years old trees can receive 7-8 buds, and 10-year-old trees can receive 10-15 buds higher, but it is not appropriate. Too much, as long as there are high branching branches in different directions around the tree. The grafting method uses single buds or shoot buds. 1 "T" shaped bud connection. The buds on the scions are plucked with wood and cut with buds. Then the parts of the rootstock that need to be cut are cut into a “T” shape with a knife, and the backs are picked open. The buds and petioles are exposed and the plastic film is used. The article is tightly packed. During operation, note that the upper edge of the bud should be aligned with the "T"-shaped transverse incision. 2 paste buds then. The difference with the method is that when the bud is cut, the bud is 1-1.5cm under the bud and goes inwards and slightly inwards, with a slight xylem. After cutting the position of the bud, it is slightly outwardly beveled out. The bud is slightly arced. The shape and the bud are centered, and then the same arcuate pit is cut on the rootstock in the same way, the buds will be affixed, the formation layer will be aligned, and the plastic film can be fastened. Before grafting or after grafting, 25-35 cm of graft should be left for the first time. Third, the management measures can be checked after two weeks. If the buds are yellow-green, the callus produced at the interface is already alive, and the non-viable ones can be patched in time (and can also be reserved for the spring of the following year). The film-breaking time is about March of the following year. When the film is unwrapped, the film is first picked up when the bud enlarges and sprouts, and the buds are exposed. When the buds are drawn about 2-3 centimeters, they are cut with buds on the opposite side of the interface. . When the buds are sprouting, the second anvil can be made 1 cm above the sprouts. The rootstock sections are smeared with paraffin liquid or wrapped with a thin film. At the same time, we will set up pillars to protect and support the growth of new budding shoots.