A new method of "needle grafting" of vegetables
First, the ear plugs nursery. Solanaceous rootstock varieties with advanced root system, high resistance to bacterial wilt, and root rot were selected. The rootstock and scion varieties were sown at the same time, and when the seedlings had two true leaves, they were grafted. Fruits and vegetables, such as pumpkins, watermelons, melons, cucumbers, etc., are also sown at the same time as rootstocks and scions, and when the seedlings begin to show their hearts, they begin to graft.
Second, grafting melon vegetables. When watermelons, cucumbers and melons and other melons are grafted, rootstocks with a length of about 5 cm are cut from the rootstock seedlings and cut at a 10-20 degree angle with a cutting knife. Real leaves and one cotyledon of the rootstock are cut off, taking care not to damage the rootstock. One cotyledon. Take the seedlings from the scion bed and use the same angle as the stock cuttings. The direction is the same as that of the scion cotyledons. Take a scion about 1 cm in length and use a special grafting tool to insert the grafting needle into the axis of the scion. 7 cm. Gently squeeze the scion cotyledon with your finger and insert the other end of the grafting needle into the center of the cut surface of the rootstock to a depth of 7-8 cm so that the cutting surface of the scion is completely in line with the cut surface of the rootstock. Be careful to make the orientation of the cotyledon of the scion and the direction of the cotyledons of the rootstock consistent, and then insert the rootstock. When in the hypocotyl, do not allow the grafting needle to emerge from the scion growth point. Cucurbits and other cucurbitaceous vegetables are suitable for grafting in the cotyledon stage.
Third, eggplant grafting. When eggplant, tomato, pepper and other eggplant vegetables are grafted, they are carried under the leaves of the rootstock seedlings, which is easy to handle and has a high survival rate. When grafting, seedlings with the same thickness as the stocking seedlings and scionlings were first cut with a knife at the middle position below the cotyledon of the rootstock seedlings, and the incisions should be smoothed. Insert a grafting needle in the middle of the stem, half inserted and the other half left for inserting the scion. Take the scion seedlings, and cut it horizontally at a suitable position below the cotyledon. The diameter of the shaft to be cut and the shaft diameter of the rootstock should be approximately equal, and it should not be too long. It is advisable to insert the scion on the rootstock with 1-2 cm.
Fourth, pay attention to matters. Rootstock and scion are cut tightly, and the grafted shoots are kept straight. When the needle grafting method is adopted, the preparation of the eggplant vegetables should be slightly larger, generally about 2.5 leaves of the scion seedlings, and 3-3.5 true leaves of the rootstock seedlings are suitable. Needles and grafting needles and needles used for needle grafting should be strictly disinfected. The blades must be very sharp. When cutting, they must be formed at one time. The faster the grafting speed, the better.
V. Management after grafting. After the seedlings are grafted, the grafted seedlings are placed in a plastic shed with nutrients placed in a plastic shed, and the water is poured. However, care must be taken not to splash water on the wounds of the grafted parts. Keep the temperature at 25-30°C and shading (yang) properly. After 2-3 days, gradually remove the sunshade and let the air out. After 5-6 days, follow the routine management after the wound has healed. Seedlings of 7-7 leaves of eggplant seedlings and 3-4 leaves of melons were planted on sunny days and when the soil was dry.
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