Viral disease, the incidence rate of 60%. Virus disease seriously affects the variety and quality of cyclamen. Most of the seeds of cyclamen are infected with viruses, which is one of the ways of virus transmission. For comprehensive prevention and control of cyclamen virus disease, the seed should be first treated before sowing, disinfected with 75% alcohol for 1 minute, or sterilized with 0.1% mercury for 1.5 minutes, or disinfected with 10% trisodium phosphate for 15 minutes. The disinfected seeds were rinsed with distilled water and allowed to cool for 24 hours in water at 35°C and sowed in autoclaved or disinfected soil. The best use of vermiculite plus sand irrigation nutrient solution, sowing by soilless cultivation methods can greatly reduce the incidence.
With plant growth, the demand for nitrogen and phosphorus did not increase significantly, while the demand for potassium was greater. In the past, people mistakenly believed that cyclamen had to use large amounts of organic fertilizer when fertilizing or applying base fertilizer. The content of nitrogen and phosphorus in organic fertilizers is relatively large, but it is not known that they are more likely to infect viruses and increase the concentration of viruses. Significantly reduce the nitrogen and phosphorus components, increase the potassium content can reduce the incidence of Cyclamen Virus.
Fertilizer is a ratio of nitrogen to potassium of 1:2.4. In addition, cotton aphid and tea aphid are also one of the vectors of virus transmission and must be controlled.
Adopting tip tissue culture not only consolidates the advantages of hybrids, but is also particularly important for obtaining virus-free seedlings. The Tianjin Institute of Landscaping and Green Research institutes adopted leaf tip culture for cyclamen and conducted a virus elimination test for cyclamen cultured by the Institute and the Wuhan Institute of Virology at the Chinese Academy of Sciences. The result was negative and the tissue culture virus-free vaccine was successful.
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