Eggplants are often attacked by blight during the production process of southern greenhouses, resulting in a large number of plant deaths. Eggplant varieties with resistance to wilt are used as rootstocks. Grafting can effectively prevent the occurrence of wilt disease. On the other hand, eggplant growth requires higher temperatures, and as a heat-resistant vegetable, eggplant in early-maturing cultivation will affect the growth of roots due to the low ground temperature, thereby affecting the prematureness; Practice has proved that with the eggplant Tomatoes have strong cold resistance, especially the optimum temperature for the growth of wild tomato roots is much lower than that of eggplant. Using this wild tomato as rootstock and eggplant grafting as scion can improve the cold resistance of the eggplant and thus provide convenience for the early maturity of the eggplant. Eggplants are commonly grafted using a splicing method. First, the rootstock varieties of wild eggplant use high resistance to Verticillium wilt varieties, require plant growth potential, root development, deep distribution. Appropriate tomato varieties include Maofen 802, Zhongshou No. 4 and Zhongshou No. 5 middle and late-maturing varieties. Tomatoes are resistant to verticillium wilt and nursery techniques are easy to master. Second, the most commonly used scion production in the production of eggplant and clove eggplant. Third, rootstock, scion suitable sowing date wild eggplant as rootstock, sowing time 15-20 days ahead of eggplant. To use tomato as rootstock, eggplant should be sowed in advance for 7-10 days, when the eggplant cotyledons top soil, then sowing tomatoes. Fourth, seed processing wild eggplant species 15-20 grams. The seeds are dried for 6-8 hours, soaked in 0.1% carbendazim solution for 1 hour, washed out and washed, and then soaked with (1-2) 10-4 gibberellin at 20-30°C for 24 hours. clean. 55°C hot water for 30 minutes, 30°C hot water soaking for 8 hours, wash the mucus on the seed coat, wrap it with clean gauze, control every day at 25-30°C for 16-18 hours, 16-20°C control 6 -8 hours warming germination, sooner or later with warm water panning once, 10-15 days after the seeds exposed white can be sown. Treatment of tomato and eggplant seeds is the same as in normal cultivation. 5. Implantation of 1-2 seedlings of seedlings and scion seedlings. The rootstock seedlings are planted in cups of size 99 or 1010, and the scions are implanted in the seedbed. The seedling distance is 6 cm square. In the 5-6 leaf stage of rootstock, the stem diameter was about 3 mm and the scions were 4-5 times. When the stem diameter was 2 mm, it was suitable for grafting. Sixth, grafting method Grafting method. The eggplant seedlings were cut from 2-3 cm below the cotyledon and cut into wedges with a blade. The bevel was about 1 cm long. The rootstock was left with leaves and 1 to 2 true leaves, heading horizontally from the top, and then centered from the stem. Cut the mouth at a depth of about 1 cm, and insert the eggplant wedge into the mouth (stocking of the rootstock and scion at least one side of the phloem), and then place a clip along the direction of the cut, and place the graft in a timely manner.