Illumination is the energy source for the production of nutrients by flower plants. Without the presence of light, photosynthesis cannot be carried out, and the growth and development of flowers will be seriously affected. Most plants can only bloom when exposed to sufficient light. Different types of flowers have different lighting requirements. Hua Yunyun: "Yincha, Yang Peony, Banyin and Banyan Four Seasons". According to the different requirements of flowers for light intensity, flowers can be roughly divided into positive flowers, neutral flowers and negative flowers. (1) Positive flowers. Most of the flower viewing and fruit viewing flowers are positive flowers, such as magnolia, rose, pomegranate, plum, crape, citrus and so on. There are also a few positive flowers in the flowers of the foliage, such as sago palm, palm, and leafy wood. Most aquatic flowers, cacti and succulents are also positive flowers. Any positive flower is radiant and not shaded. If the sun is not enough, it will easily cause the branches and leaves to grow, the tissue is soft and weak, the leaves are light and yellow, not easy to flower or flower, easy to be affected by pests and diseases, (2) negative flowers. It grows well under the conditions of shade, such as Wenzhu, Camellia, Rhododendron, Hosta, Green Alga, Evergreen, Ivy, Gloxinia, Monstera, Begonia, etc. If the long-term outside is exposed to strong light, the leaves are yellow. Growth stagnates, severe or even death. (3) Neutral flowers. It grows well under sunny conditions, but there is no principle to shade the summer when the light intensity is high, such as sweet-scented osmanthus, jasmine, white orchid, and osmanthus. In summary, various flowers have different lighting requirements and requirements, and even the same flower, the requirements for illumination are different at different stages of growth and development, and the seedlings can be gradually increased when light is needed, and the positive chrysanthemum requires Flower buds are formed under conditions of short daylight.
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Viral Transportation Medium Tube
Uses: used for the detection and sampling of influenza, hand, mouth, foot and other epidemic diseases
Inspection principle:
The combination of multiple antibiotics has broad-spectrum antibacterial and antifungal effects;
As a protein stabilizer, bovine serum albumin can increase the survival time and infection stability of the virus;
Buffers such as Hank's build a neutral environment, which helps to increase the survival time and infection stability of the virus;
Phenol red is an acid-base indicator, the discoloration area is 6.6 (yellow)~8.0 (red), and it is red at 7.2~7.4.
Steps:
1. According to the sampling requirements, use a sampling swab to collect samples.
2. Place the swab after collecting the sample into a sterile sampling tube.
3. Break the sampling swab rod that is higher than the sterile sampling tube.
4. Tighten the cap of the sterile sampling tube.
5. Label the sterile sampling tube with information as required.
For sample collection, transportation and storage.
Product advantages:
1. The virus discretion of the flocking swab is high to ensure the accuracy of the test results.
2. The samples are well sealed to ensure product transportation and safe storage.
3. Product instruction manual, product certificate
Product Details:
1. The product set includes a one-time Virus Sampling Tube (including preservation solution), a self-sealing bag, a sampling swab, and instructions.
2. Product specification: 100 sets/box, 8 boxes/box 3. Product weight: 0. 65kg/box, 13. 2kg/box
4. Packing size: 25. 5*23. 5*14. 5 boxes, 53*49*32/carton
Scope of application:
Work resumption testing, the best choice for large-scale population screening
Features:
1. Transport at room temperature, stably preserve viral RNA
2. Pre-packaged guanidine salt lysate can inactivate the new coronavirus, ensuring the safety of transportation and testing personnel 3. The large-capacity preservation solution can fully soak the swab head,
The sample size can be divided into three parts for testing and reserve samples respectively to meet the testing needs.
Scope of application:
Suspected cases, disease control testing, preferred by P3 laboratory
Viral Transportation Medium Tube,Sample Collection Tubes,Transport Nasal Swab With Tube,Virus Sampling Tube Nasopharyngeal Swab
Jilin Sinoscience Technology Co. LTD , https://www.jilinsinoscience.com