Grafting Good Method for Cucumber——Crossing Method

1. Soak germination. Seeds of grafted rootstock sunspots were soaked for 8 hours and then germinated at 30-33°C. It can germinate in 24 hours, all can be sown in 36 hours, and soaking of cucumber seeds can be carried out according to conventional methods. 2. Sow. The seeding period is determined by the length of seedlings and the duration of planting. Greenhouse cucumbers must be cultivated from late November to early January. The greenhouse cucumbers are raised in mid-February and the cucumber seeds are sowed 3 to 4 days earlier than sunspots. After the emergence of the pumpkin, it is necessary to properly control the moisture so as to prevent leggy. 3. Grafting method. About 15 days after the cucumber was sown, the cucumber was grafted when it was about half a true leaf. First dig out the growing point of the pumpkin seedling with a bamboo pick, and then use a blade to chamfer about 35 centimeters from the top of the pumpkin seedling about 1.5 centimeters from the cotyledon, the mouth depth is about 2/3 of the stem diameter, and then use the blade. About 1.5 cm from the upper part of the cucumber cotyledon obliquely cut a mouth of about 35, the depth is about 2/3 of the stem. After the two melon seedlings were cut, the cut sections of the cucumber seedlings and the sunspot pumpkin seedlings were aligned and aligned to make no gaps in the incisions. Then fix it with plastic clips. 4. After the crop management. Afterwards, the seedlings will be placed in a nutrient bowl or in a plastic nutrition bag and placed in a seedbed. The buried part is the best standard for the pumpkin root. The grafted seedlings should be buckled with a small arch to ensure proper temperature and humidity. Keep at 23-30 °C, keep at 15-20 °C during the night, and the ground temperature should reach 23-28 °C. Within 3 days after grafting, we should cover the grasshoppers on the shed film to avoid shading and avoid the wilting of seedlings caused by direct sunlight. 2-3 Gradually open the grass and gradually extend the lighting time, and at the same time to be properly ventilated. Spray water once a day at noon every day, so that the relative humidity of the air reaches more than 90%, in order to facilitate healing and slow seedlings, until the seedlings do not wilted after seeing light Water spray and shading. 5. Cut roots, prevent disease, and remove clips. When the seedlings grow to two leaves and one heart, that is, in the 10-13 days after grafting, the cucumber seedling stems and stems are cut at the lower part of the joint with a blade. When the grafted seedlings are sprayed for about 15 days, the chlorothalonil 500-800 times liquid is used for prevention and treatment. Downy mildew, while removing the clip. 6. Colonization. Grafting seedlings grow to 4-5 leaves, ie seedling age of 50 days or so. Before planting, apply organic fertilizer and lay a good plastic film. When planting, pay attention to soil depth can not exceed the grafted joint, otherwise, cucumber stems will come into contact with the soil will produce Adventitious roots lead to failure of grafting and cultivation.

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