Lettuce, lettuce and oily wheat are cultivars of 1-2 year old herbaceous plants of the genus Chrysanthemum. Native to the Mediterranean coast of western Asia, it is a cold-tolerant, cool, and hot vegetable. The seeds can start germination at 4 ° C, and the suitable germination temperature is 15-20 ° C. When the temperature is higher than 25 ° C, it is difficult to germinate due to the water absorption of the seed coat. Therefore, in the summer and autumn cultivation, the seeding period is still in the high temperature stage in summer, and the seed germination is often poor. The method of germination and sowing can be adopted, and the following methods have been proved to have good seed germination effect.
The seeds are wrapped in fine gauze or bean wrap, which is slightly larger depending on the amount of seeds, which is convenient for germination to cleanse the seeds. Pack the seeds in clean, cool water and gently wash them several times to make the seeds fresh and clean. Then soak them with new high-fat film for 2-3 hours, remove the excess water, and wrap them in a refrigerator. Room (5-10 ° C) for 24-36 hours, remove and wash the seeds and towels, wrapped with a wet towel at room temperature (about 20 degrees) to germination, generally after 1-2 days, the seeds can be exposed in large quantities.
Note that all the supplies in the germination process should not be oily, and the hands should not carry oil, so that the seeds breathe. The function of the wet towel is to moisturize. If it is too dry, it will not be moisturizing. If it is too wet, it will affect the seed's breathing. It is not conducive to the germination of the seed.
Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Automatic Nucleic Acid Extractor
Nucleic acid extraction instrument is an instrument that automatically completes the nucleic acid extraction of samples by applying the supporting nucleic acid extraction reagents. Widely used in disease control centers, clinical disease diagnosis, blood transfusion safety, forensic identification, environmental microbial testing, food safety testing, animal husbandry and molecular biology research and other fields.
Using magnetic beads as the carrier, using the principle that magnetic beads adsorb nucleic acid under high salt and low pH value, and separate from nucleic acid under low salt and high pH value, and then move the magnetic beads or transfer the liquid to realize the entire extraction and purification process of nucleic acid. Due to the uniqueness of its principle, it can be designed into a variety of throughputs, which can be extracted from a single tube or 8-96 samples, and its operation is simple and fast. It only takes 30-45 minutes to extract 96 samples, which greatly improves the The experimental efficiency is low and the cost is low, so it can be used in different laboratories, and it is the mainstream instrument on the market.
Features of Magnetic Bead Nucleic Acid Extractor
1. Enables automated, high-throughput operations.
2. Simple and fast operation.
3. Safety and environmental protection.
4. High purity and high yield.
5. No pollution and stable results.
6. Low cost and easy to be widely used.
7. Different types of samples can be processed simultaneously.
Nucleic Acid Extraction System,Automatic Nucleic Acid Extractor,Nucleic Acid Extraction Machine,Nucleic Acid Extraction Instrument
Jilin Sinoscience Technology Co. LTD , https://www.contoryinstruments.com