Cause: The fruit of eggplant is developed by cell division and expansion, but the cell division has basically ended before flowering. After flowering, the fruit grows mainly by cell expansion. At this time, a large amount of nutrients must be transported to the fruit cells to accumulate. In order to make the fruit expand normally, it is necessary to first pollinate and fertilize to form seeds. At this time, the concentration of auxin in the ovary is increased, and the fruit becomes a circulation center, absorbing nutrients and water, and forming normal fruits. If the eggplant flower bud differentiation period encounters a low temperature below 15 °C, or too much fertilizer, when the water is excessive, it will cause excessive nutrition at the growth point. When nutrition satisfies the normal growth and development of eggplant, it may cause cell growth and division too much. The double ovary and multi-ovary form a multi-Carpel double-generation eggplant, and sometimes even more than three grow on a fruit handle. "The eggplant" is also called "the pouch". Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Processing high-throughput samples, intelligent reuse for large-capacity publishing, work surface: 200cm, 8 sample injection needles, 12 temperature-controlled incubation positions, 12 room temperature incubation positions, 32 plate storage positions, Sunrise microplate reader, HydroFlex plate washer, up to 512 specimens, sequential loading of samples, reagents, microplates Parallel loading of up to 6 plates for fast dispensing.
The automatic enzyme immunoassay analyzer is based on the principle that the enzyme and the substrate can produce a color reaction, the absorption lines of different substances have different characteristics, and strictly abide by the Lambert-Beer law, quantitative and qualitative analysis of substances. instrument. The method of analyzing the content of various enzymes such as antigen or antibody generally mainly adopts colorimetric method. In practice, spectrophotometry is the basic working principle of an automatic enzyme immunoassay analyzer. The light emitted by the light source lamp becomes a beam of monochromatic light after passing through a filter or a monochromator. The monochromatic light beam passes through the sample to be tested in the microtiter plate, and part of the monochromatic light beam is absorbed by the sample and reaches the photodetector. The intensity of the light signal projected on it is converted into the magnitude of the electrical signal by the photodetector. This electrical signal is processed by pre-amplification, logarithmic amplification, analog-to-digital conversion, etc., and then sent to the microprocessor for data processing and calculation, and the test results are output by the display and printer. The microprocessor completes the movement in the X and Y directions of the mechanical drive through the control circuit. ELISA analyzer,enzyme immunoassay workstation,automatic enzyme immunoassay analyzer,automatic enzyme immunoassay system Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com
Prevention and control measures: 1. Strengthen management. During the flowering period, it is necessary to control appropriate environmental conditions, rational irrigation and fertilization to prevent excessive growth of nutrients. When the eggplant grows to a large egg, 15 to 20 kg of urea is applied per acre. As a result, nitrogen fertilizer and potassium fertilizer should be applied once again. As a result, 0.2% urea or 0.2% to 0.3% potassium dihydrogen phosphate can be sprayed at a later stage. 2. Pay attention to flowering temperature control. Generally, the flower bud differentiation period is about 30 ° C during the day and 20 ° C to 25 ° C at night, and the flower buds are well differentiated. 3. The use of hormones in the preservation of flowers and fruits should be strictly controlled. 4. When there is excessive fertilization or “double eggplantâ€, spray the water-soluble liquid fertilizer of Shibao, 800~1000 times to relieve the damage.
The automatic enzyme immunoassay analyzer adds the sample to the microwells of the pre-coated antigen or antibody microtiter plate, washes after the reaction, removes the unseparated ligand, then adds the enzyme isolate, after incubation, washes again , remove the unseparated compound, and then add the enzyme substrate, after the reaction, the colored final product is formed, and the stop solution is added to stop the reaction. The absorbance of each microwell of the microtiter plate is read by the wavelength that has been set by the spectrophotometer. The concentration value of the analyte in the sample is calculated by the absorbance value of the sample and the standard curve, so that the quantitative result can be obtained, or the absorbance of the sample is compared with that of the standard product, so that the positive or negative qualitative result can be obtained.