Answer: The radish split is the result of the expansion of the lateral root of the radish. The main reasons are several: First, the soil. Planting radishes must choose deep and well-drained plots. If there are hard objects such as stones in the soil layer, it will hinder the growth of radish roots, which will cause the lateral roots of the radish to expand and bend, causing the radish to fork. The second is the cause of moisture. Radish needs sufficient water during the growth process, but it should not be too high. If the water is high for two days, it will cause poor soil aeration, inhibit the main root of the radish and form a lot of lateral roots, so the drainage work must be done well. The third is the reason for fertilization. Radish fertilization, especially farmyard manure, must be thoroughly decomposed, and unfertilized farmyard manure can cause radish root malformation. The fourth is the reason for the temperature. Radish must pay attention to the shed film before sowing, keep the temperature suitable, otherwise it will easily cause the radish fork. The fifth is the cause of pests. Underground pests will eat radish, inhibit the growth of the main roots, causing lateral root enlargement, bifurcation or deformity.

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Freeze-Dried RT-PCR Test Reagent Kit Of COVID-19(ORF1ab,N)

The Freeze-Dried RT-PCR Test Reagent Kit is a real-time reverse transcriptase (RT)-PCR test intended for the qualitative detection of nucleic acid from SARS-CoV-2 in nasopharyngeal swabs, oropharyngeal (throat) swabs, anterior nasal swabs, mid-turbinate nasal swabs, nasal aspirates, nasal washes, bronchoalveolar lavage (BAL) fluid and sputum from individuals suspected of COVID-19 by their healthcare provider. Results are for the identification of SARS-CoV-2 RNA. The SARS-CoV-2 RNA is generally detectable in respiratory specimens during the acute phase of infection.

Positive results are indicative of the presence of SARS-CoV-2 RNA; clinical correlation with patient history and other diagnostic information is necessary to determine patient infection status. The agent detected may not be the definite cause of disease. Positive results do not rule out bacterial infection or co-infection with other viruses.

Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. Negative results must be combined with clinical observations, patient history, and epidemiological information.

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