Grafting and cultivation of eggplant has become the most important disease-resistant and yield-increasing cultivation method in eggplant production currently under protection. When eggplant is grafted and nursed. The seeding and scion technique of seedlings and shoots is generally adopted. This method has high seed cost and high production cost. Therefore, based on the principle of apical dominance of plant growth and combining with the strong germination power of lateral sprouts of eggplant seedlings, the authors concluded three kinds of seedling and multiple shoot scion techniques:
The first method is to use the lateral shoots of the strong adult plants of Shangyu to adopt the scions. One can collect ten to several dozen lateral buds. This method can save the cost of scion seeds, but has the following disadvantages: First, the need to reserve a mother strain, it is difficult to completely disinfect the entire greenhouse; Second, the lateral buds may carry a virus or other germs. Cause grafted seedlings early onset, heavy disease, affecting yield; Third, due to the scion size is not the same, the grafted seedlings after survival may vary in height, field management more difficult, pruning work load increase.
The second way is to take the scion method. Scion and rootstock can be raised at the same time, and the scion can also be raised in advance. Since the scion seedlings grow faster than the rootstock seedlings, they can be cut separately according to the height of the scion seedlings and the number of leaves. Each section retains 1 to 2 true leaves. Generally, 1 scion can cut 2 to 3 sections of stems, using terminal buds and interceptions. The scions are directly scioned. After the stems were grafted to survive, the seedlings using the scion scions and stem segments of the stems scion did not have the same growth rate. They should be divided into colonies and managed separately. After the grafted seedlings had the same growth height, they were managed uniformly. This method is mainly applicable to industrialized seedlings.
The third method is the lateral shoot take-out method. Scion and rootstock can be raised at the same time, and the scion can also be raised in advance. According to the requirements of the number of scions, select the appropriate leaf age to remove the top buds. Shouguang local vegetable growers or nursery factories generally remove the terminal buds from the 3rd to 4th leaves of the scions, and the lateral shoots grow rapidly until the lateral shoots grow to 4 to 5 tablets. When the leaves are in use, the lateral buds are removed with a blade for scion grafting. Generally 1 scion can take 2 to 3 lateral buds. According to the principle of rough match between rootstock and scion, select the appropriate period for grafting. This law is not only convenient for farmers but it is also more suitable for factory seedlings. Industrialized seedlings can be grafted with 4 to 5 true leaves, and the top buds will be grafted first. When the lateral shoots grow to 4 to 5 leaves, they will be grafted one batch. The practice of batch grafting can effectively reduce the cost of raising seedlings.
The protection of eggplant using a seedling sprouting scion technology, can greatly reduce the cost of seedlings, considerable economic benefits.
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