The potted white orchid, especially when placed in the north, may look elegant at first, but after several years of growth, its main and lateral branches often become bare and leafless at the lower parts. This unattractive condition is commonly referred to by gardeners as "going pants," which not only looks bad but also affects the overall health and beauty of the plant. To fix this issue, a full pruning is recommended, ideally done in mid to late May.
Pruning stimulates the growth of buds and axillary buds, encouraging new shoots to emerge from the base of the tree. This process helps to reshape the canopy, making it more compact and preventing the old branches from growing too long and sparse. After pruning, the number of lateral branches can increase by 3 to 4 times, with each original branch producing 3 to 4 new side branches. As a result, the tree becomes denser, more visually appealing, and develops more flowering sites.
When performing this crown renewal technique, it's essential to make the cut just above a lateral bud, preferably about 0.6 cm above the top bud. This ensures that no stub is left behind, which could lead to rot or poor regrowth. Also, when selecting which buds to keep for future growth, always choose those that are located on the outer side of the tree. The new branches that grow from these buds will spread outward, maintaining a balanced and neat shape. If you prune inward-facing buds, the new growth might cross over, creating an untidy appearance and disrupting the natural form of the orchid.
After pruning, it's important to protect the cut areas from drying out. One effective method is to wrap the cuts with a small piece of plastic film or apply a layer of pruning paint. This helps prevent dry rot and ensures that the buds remain healthy and able to sprout properly. Taking these steps carefully can greatly improve the chances of successful regrowth and maintain the orchid’s beauty for years to come.
Test Kits
Diagnostic reagents can be divided into two categories: in vivo diagnostic reagents and in vitro diagnostic reagents. It is mostly a reagent for detection by the reaction between antigen and antibody.
A: Classification of in vitro diagnostic reagents:
1. In vitro biodiagnostic reagents managed as drugs include:
1. Blood type and tissue type reagents;
2. Microbial antigen, antibody and nucleic acid detection reagents;
3. Tumor marker reagents;
4. Immunohistochemistry and human tissue cell reagents;
5. Human genetic testing reagents;
6. Biochips;
7. Allergy diagnostic reagents.
2. In vitro reagents managed as medical devices include:
1. Clinical basic test reagents;
2. Clinical chemistry reagents;
3. Blood gas and electrolyte determination reagents;
4. Vitamin determination reagents;
5. Cell histochemical stains;
6. Autoimmune diagnostic reagents;
7. Microbiological test reagents.
B: According to medical test items, clinical diagnostic reagents can be roughly divided into clinical chemical test reagents, immunology and
Serological testing reagents, hematological and cytogenetic testing reagents, microbiological testing reagents, body fluid excretion
Detection reagents, genetic diagnosis reagents, etc. Among them, the market share of clinical chemistry
The largest, close to 34%; followed by the immunology market, accounting for about 29%. Novel immunodiagnostic reagents and genetic diagnostic tests
The reagent was developed in the late 1980s, and it is the most common diagnostic reagent for all current diagnostic reagents, regardless of technology or market.
The fastest growing product.
Urine Rapid Test Kit,Rapid Test Kit 6-Panel,Toxoplasma rapid test kits,Fecal Occult Blood Test
Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com