Melon seed coats are generally hard and germinate slowly. They need to be treated before sowing to promote rapid and homogeneous germination so as to achieve proper sowing. The method of germination of melon seeds is described as follows: Cucumber. Seed disinfection before sowing, soaking in constant temperature water at 50°C for 15 minutes, stirring constantly, then adding cold water to normal temperature and soaking for another 2--5 hours, picking up and draining, placing in the germination at 25°C--28°C. .5-2 days, the radicles can be sown just after the first exposure. watermelon. Seed drying before planting 1--2 days, soaking in hot water at 55°C for 10-15 minutes, stirring continuously, soaking in cold water for 4- 6 hours, and then germination at 20°C--30°C, noon every day Wash seeds once with warm water. Dew 4 - 5 days can be sown. Winter melon. Before sowing, the seeds are placed in hot water at 50°C--60°C, and stirring is continued to make the seeds heated evenly. After 13-15 minutes, stirring is stopped when the water temperature drops to 30°C. The seeds are washed by hand and the seeds are removed. . Remove the mucus, soak for 12--14 hours in fresh water, and after the seeds have enough water, they can be removed and wrapped in a thick cloth and placed in the germination box or other warm place (temperature maintained at 30°C) to germinate. The germinated seeds are flipped once a day, so that the temperature inside and outside the seed pile is the same. When the seeds are turned, check the condition of the water. When the seeds are found to be dry, water should be sprayed in time. The germination can be initiated within 3 to 4 days. pumpkin. Seeds are sunned for 1–2 days before sowing, and soaked in hot water at 50–60°C for 5–10 minutes, stirring constantly. When the water temperature drops to 25°C–30°C, soak for 6 hours and remove. Dry, germinate at 20 °C to -30 °C, and take care to maintain good ventilation. 2--3 days to germinate. Bitter gourd. The bitter gourd seed coat is hard. Before sowing, use wet sand to dip the seed coat wax (do not break the seed shell), soak it in hot water of 50°C--60°C for 10 minutes, keep stirring, continue to dip after cooling 1- 2 days, it makes water swelling. Soaking after germination placed at 30 °C - 33 °C. melon. Before sowing, drying for 2 or 3 days, soak the seeds in warm water of 50°C for 10 minutes, stir continuously, cool naturally with water temperature, soak for 1 hour, then use 1000 times of carbendazim solution to disinfect the seeds for 10-20 minutes. After washing, it is wrapped in gauze and germinated at 28°C to -30°C. China Agricultural Network Editor