Rice seed processing
1, drying seeds: Shai seeds can promote seed vigor and increase seed germination rate. Choose a sunny, good weather for about 3 days. The seed paving should be thin during the drying season, and it should be turned regularly to be uniform. Prevent chapped hulls when turning and prevent mixing of several varieties at the same time. 2. Seed selection: Only the empty rice dumplings can be selected with fresh water, and no mature half can be selected. When such seeds are used to raise seedlings, the seedlings have poor quality and grow slowly. Therefore, when selecting seeds, the relative density of water should reach 1.13 (25 kg of water, the relative density of dissolved 6 kg of salt is about 1.13), and the poorly-fering rice grains can all be selected by selecting this salt water. However, it is important to remind that salt water must be washed twice after seed selection, otherwise seeds will not sprout. 3, soaking disinfection: rice seed rice husk thick, slow water absorption, so soaking before germination, so that it fully absorb water; to prevent rice diseases, but also to disinfect the seeds. The length of soaking time in rice is related to the temperature of soaking water. Soaking for 5~6 days when the water temperature is 15°C, soaking for 7~8 days when the water temperature is 10°C. Sterilization can be used to soak seedlings with bacillus seedlings and prochloraz. Note that the concentration should not be too large, excessive concentration or long soaking time will inhibit shoot growth and slow sprouting. 4. Pregermination: Regardless of the method, the principle is the same, that is, "high temperature breaks the chest, appropriate temperature germination, low temperature dry buds." High-temperature germination is at 30 ~ 32 °C, after 1 to 2 days break the chest dew. After the whitening of the chest, the temperature dropped to about 25~28°C, which is the so-called proper temperature. After 12 to 15 hours, when the shoots reach 0.1 centimeters in length, the buds can be spread out and placed under natural temperature to cool down the heat. Seed sowing when the temperature drops to the same temperature as the natural temperature. During the germination process, high temperature seeding should be prevented. Seeds beyond 36°C lose their ability to germinate. Do not replenish water before breaking the chest, break the chest to turn the seed, so that the seeds germinate evenly; appropriate water after breaking the chest, pay attention to ventilation and oxygen, you can prompt a good bud Portable 3 Ply Disposable Masks Non-woven Face Mask With Elastic Earloops Disposable Surgical Face Mask Dongguan Anmeixuan Electronic Technology Co., Ltd , https://www.hyashine.com