Lettuce, lettuce, and oiled wheat are cultivars of 1-2 years old herbaceous plants belonging to the genus Compositae. Native to western Mediterranean coasts of Asia, it is a cold-tolerant, hi-cool, and heat-tolerant vegetable. Seeds can start to germinate at 4°C, and the suitable germination temperature is 15°C~20°C. When the temperature is higher than 25°C, germination is difficult because of seed coat water absorption difficulties. Therefore, in the summer and autumn, the seeding period is still in the high temperature stage in summer, and the seeds are often sprouted and emerged poorly. The method of germination and sowing can be adopted, and it has been proved by practice that the following method has a good germination effect. The seeds are wrapped with fine gauze or bean rags (due to the small seeds to prevent leakage), according to the amount of seeds to be slightly larger, easy to clean the seeds germination process. Put the wrapped seeds in clean cold water and gently scrub them several times to make the seeds fresh and clean. Then soak them in cool water for 2 to 3 hours. Remove the excess moisture and pack them in a wet towel and put them in the refrigerator freezer ( 5 °C ~ 10 °C) treatment 24 ~ 36 hours, remove the seeds and towels washed out, with a wet towel packaged at room temperature (about 20 °C) germination, generally 1 to 2 days after the seeds can be a large number of white. Note that all the supplies of the germination process cannot be oiled, and the hand cannot carry oil, allowing the seeds to breathe and breathe. The role of the wet towel is to moisturize, too dry will not achieve the moisturizing effect, and the wetness will affect the seed breathing, which is not conducive to the germination of the seed. Virus Collection And Preservation System Virus Sampling Tube,Covid-19 Virus Collection Kit,Virus Sample Collection Swabs,Virus Collection And Preservation Kit HANGZHOU DIAN BIOTECHNOLOGY CO., LTD. , https://www.dianbiotech.com