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鳞茎植物进行无性繁殖,非常容易导致病毒病和类病毒病的广泛传播。病毒、病毒复合感染所形成的症状受环境条件影响较大。反常的寒冷气候,能使
Bulbous plants are vegetatively propagated and can very easily lead to the widespread transmission of viral diseases and viroid diseases. Symptoms caused by virus and virus compound infections are greatly affected by environmental conditions. Anomalous cold weather can make