Grafting of eggplants can not only increase yield, but also increase resistance to pests and diseases. After grafting of eggplant, it takes 10-15 days from the combination of rootstock and scion, callus growth and fusion to vascular bundle differentiation. For early spring cold-shed eggplants, it is particularly important to strengthen the management of temperature, humidity, light and ventilation at this stage to promote wound healing and improve graft survival.
Light intensity. During the wound healing process after eggplant grafting, try to avoid direct sunlight as much as possible in the early stage to reduce leaf transpiration and prevent seedlings from losing water and wilting, but pay attention to let the seedlings see scattered light. Shade nets, straw curtains, and reed curtains should be used for shading properly within 2 to 3 days after grafting. After 3 days, no shading will be used sooner or later, and only cover at strong noon light for a period of time. After that, the temporary shading time will gradually decrease.
temperature. After grafting, maintaining a slightly higher temperature than conventional seedlings can speed up the healing process. In the first 3 days after eggplant grafting, the air temperature during the day should be raised to 28 ° C ~ 30 ° C, at night 15 ° ~ 17 ° C, and the ground temperature should be above 15 ° C. In order to ensure that the initial temperature of the grafting is appropriate, there should be heating equipment in the shed under low temperature conditions. It is better to use an electric heating bed to raise seedlings when there is no heating equipment. 3 to 7 days after grafting, decrease the temperature by 2 ° C to 3 ° C as the ventilation volume increases. When the leaves resumed growth after one week, the interface had healed and began to enter normal temperature management.
humidity. Minimizing transpiration of scion water is one of the decisive factors to improve graft survival. Immediately after the grafting is completed, the seedlings should be drenched with water. After the grafting, the seedlings are placed in a small arch shed that has been fully wetted, covered with a film to retain moisture, and sealed around after the grafting. The relative humidity in the first 3 days is preferably above 90% to 95%. Spray it once a day in the morning and afternoon to maintain a high humidity state. It is better to cover the film with dew drops. When spraying water, the spray head should be facing up to avoid spraying the grafted parts directly and causing the interface to rot. If the film is lined with a wet non-woven fabric, the moisturizing effect is better. The relative humidity can be slightly reduced within 4 to 6 days, preferably 85% to 90%, and generally sprayed only around noon. After one week of grafting, it was transferred to normal management.
ventilation. The first 3 days after grafting are generally not ventilated and kept warm and moisturized. Spliced ​​seedlings are susceptible to high temperature and high humidity, and can be ventilated 1 or 2 times a day, but they need to be sprayed again and airtight to keep moisture. After 3 days, the seedlings grew slightly windy sooner or later. After that, the ventilation openings gradually increased, and the ventilation time gradually extended. After 10 days, the seedlings will be removed and the film will be removed for routine management.

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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.
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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:
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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


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