Shedding Eggplant Grafting Technology
The use of grafting seedlings to cultivate eggplant not only avoids soil-borne diseases, but also effectively prevents diseases such as verticillium wilt and bacterial wilt in eggplants. Moreover, due to the developed root system, strong drought resistance, and vigorous growth, the yield and quality of eggplant Are higher. The stocks with better rootstock varieties include red eggplant, Xingjin No. 1 and Xingjin No. 2 eggplant varieties. It is also possible to use tomato 802 and other varieties as stock. With such varieties as rootstock grafting, the plant's ability to withstand low temperatures is significantly enhanced and is suitable for wintering cultivation. Marriage method according to the method: in the rootstock and scion with 5 to 6 true leaves grafting best. When grafting, leave a large and strong true leaf on the rootstock. If the cotyledon develops poorly, leave two true leaves. Remove the rest of the true leaves and cut the stem 0.5 to 0.6 cm deep with a blade. The scion must cut off the true leaves of the cotyledon and its upper part, and cut the stem into a wedge shape. The slope is 0.4-0.5 cm long, embedded in the rootstock, and fixed with a grafting clip. The spacing of the seedlings is 15 cm X 15 cm. By connection method: When the rootstock seedlings grow to 2.5 to 3 true leaves, the scion seedlings have 2.5 true leaves to graft. Two seedlings of equal thickness were selected and slashed between the first and second true leaves with a blade. The length of the incision was 0.4-0.5 cm and the depth was half that of the stem. The rootstock is chamfered downwards and the scion is cut upwards. Then the interface is fixed with a grafting clip and planted in a nutrient bowl. Plug in: When the rootstock seedlings grow to 2.5 to 3 true leaves and the scion seedlings have 1 to 2 true leaves, insert them. When grafting, dig up rootstock seedlings and bring as much soil as possible. Leave 1 true leaf and remove the rest. Use bamboo sticks to tie a slightly inclined hole that is about 3 mm deep. Then cut a knife gently along the lower part of the scion cotyledon to form a 2.5 mm long wedge-shaped incision. Insert the scion incision downward into the small hole of the rootstock, plant it in the seedbed or nutrient bowl, shade, moisturize, and keep warm. Whatever grafting method is adopted during seedling management, the grafted seedlings should be placed in the seedbed and the small arch shed after grafting. The relative humidity of the air in the shed should reach 90% to 95%, and the temperature should be maintained at 27 to 30°C. In this way, 24 hours after grafting, the callus is generated and can survive 5 to 7 days. The temperature during the seedling period should not be lower than 20 °C. The initial period should be properly shaded, gradually see the light after 3 days, and the seedlings have survived 5 to 7 days later. Seedlings are cut off after 10 days and then managed as normal seedbeds.