Method of grafting bitter gourd seedlings:
1. Bitter melon grafted seedling rootstock should use nutrient seedlings, scion should use pure soil seedlings, must prevent soil-borne diseases, bitter melon seeds should be germinated after soaking, (the specific method will not explain, this site has been about bitter melon planting Explain), spread the nutrient soil on the seedbed, pour the water with the water, then plant the bitter gourd seeds in the nutrient soil, and finally cover the soil.
2. The grafting time must be about 20 days after the rootstock is planted. The bitter gourd leaves are 5-6 cm away from the ground and the diameter is 2.0-2.5 mm.
3. There are two methods of grafting bitter gourd: the mitre method and the splicing method. Any one can be used. The small series is for everyone to talk about the slanting method. First cut 2/3 into the vertical plane below the root surface of the rootstock and 0.5cm-0.6cm. The depth is 0.3-0.4cm, and the selected scion is cut into 2/3 at a depth of 1cm from the large side below the cotyledon, and the depth is 0.3-0.4cm. The two incisions are aligned and fixed by a grafting clip.
4. It must be protected 9-10 days after the bitter gourd grafting. This is the wound healing period. During this period, we must control the temperature, humidity and light of bitter gourd seedlings. Next, we will say the standard. First, the temperature should be controlled at 25-30 degrees during the day and 20 degrees at night, followed by humidity and humidity should be kept above 95%. It is necessary to pay attention to the heat preservation and shading. It is not necessary to ventilate for the first 6 days. After 7 days, the ventilation should be carried out under the condition of high temperature and humidity. Be sure to maintain a good humidity. You can spray water 1-2 times at noon. The last is the light. After the grafting of bitter gourd seedlings, it is necessary to shading in time. After grafting for 9-4 days, all the shading should be done. When the grafted wound is completely healed, the covering can be untied.
5. It is necessary to remove the grafted seedlings that have not survived in time. Sometimes it is difficult to distinguish them. If the live seedlings can be placed in a better condition, after a period of growth and catching the seedlings, the fake seedlings can be removed.
Step 5: Strip the unlived grafted seedlings and fake them into live seedlings. It is difficult to distinguish them at a time. It can be placed in a better condition. After a period of time, the slow-growing seedlings will gradually catch up with the large seedlings and remove the false live seedlings.
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