Detailed eggplant grafting technology

Eggplants are frequently affected by blight during the production process in southern greenhouses, leading to significant crop losses. To address this issue, eggplant varieties resistant to wilt disease are often used as rootstocks. Grafting is an effective technique that can significantly reduce the risk of wilt and improve plant survival. In addition, eggplants require higher temperatures for optimal growth. However, in early-season cultivation, low soil temperatures can hinder root development, which in turn affects the overall growth and maturity of the plant. Studies have shown that wild tomatoes, particularly certain varieties, exhibit strong cold resistance. The ideal temperature for the growth of wild tomato roots is much lower than that of eggplants. By using wild tomato as a rootstock and grafting eggplant as the scion, the cold tolerance of the eggplant can be improved, making it easier to achieve earlier maturity. The most common grafting method used for eggplants is the splice grafting technique. First, wild eggplant varieties with high resistance to Verticillium wilt are selected as rootstocks. These should have good growth potential, strong root development, and deep root distribution. For tomato rootstocks, suitable varieties include Maofen 802, Zhongshou No. 4, and Zhongshou No. 5, which are mid- to late-maturing and easy to cultivate. The scion is typically produced from either regular eggplants or clove eggplants. When using wild eggplant as the rootstock, it should be sown 15–20 days earlier than the eggplant. If tomatoes are used as rootstocks, the eggplant should be sown 7–10 days ahead. Once the eggplant cotyledons emerge, the tomato seeds can be sown. Seed treatment for wild eggplants involves drying the seeds for 6–8 hours, followed by soaking in a 0.1% carbendazim solution for one hour. After washing, the seeds are soaked in a gibberellin solution (1–2 × 10⁻⁴) at 20–30°C for 24 hours. Then they are treated with 55°C hot water for 30 minutes and 30°C hot water for 8 hours. The seeds are washed to remove any mucus, wrapped in clean gauze, and kept at 25–30°C for 16–18 hours, then at 16–20°C for 6–8 hours daily for germination. A warm water rinse is done once a day, and after 10–15 days, when the seeds begin to show white sprouts, they are ready for sowing. Tomato and eggplant seed treatments are similar to those used in regular cultivation. For grafting, one rootstock seedling and one scion seedling are used. Rootstock seedlings are planted in 99 or 1010-sized pots, while the scions are planted in a seedbed with a spacing of 6 cm². When the rootstock reaches the 5–6 leaf stage and has a stem diameter of about 3 mm, and the scion has a stem diameter of around 2 mm, it's the ideal time for grafting. The grafting process involves cutting the eggplant seedling 2–3 cm below the cotyledon, shaping it into a wedge with a blade, and making a bevel of approximately 1 cm. The rootstock is left with one or two true leaves and is cut horizontally from the top. A 1 cm deep cut is made in the rootstock, and the eggplant wedge is inserted into the cut, ensuring that at least one side of the phloem is aligned. A clip is then placed along the cut, and the grafted plant is immediately transferred to a suitable environment for recovery.

Special Intermediates

Our special intermediates are mainly a combination of our own actual product structure and product properties, including: 1. The product does not belong to any other product of our company intermediates, 2. Chemical reaction type is more special 3. Can be used to synthesize two or more kinds of API which roles is almost equivalent and difficult to separate the level. 4. This intermediate is somewhat less used for actual production or less practical use. We summarized the above four cases of intermediates temporarily as a special intermediate, if the special intermediate application is enlarge, we will adjust it according to the actual situation to change its "identity."

Special Intermediates,Tofisopam Intermediates,Amisulpride Intermediates,Antithrombotic/Blood thinners

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