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云南的鲜切花种类主要有香石竹,满天星、玫瑰、勿忘我、情人草、百合、非洲菊、菊花等,这些植物在自然生长中很容易感染病毒,通过无性繁殖很易使带毒材料代代相传,随着植株体内毒源量的增加,轻则造成种质材料退化,花色变异,花朵变小等,重则导致植株死亡。目前国内外报道的主要鲜切花病毒种类多达数十种,根据近年来的初步调查和研究,云南鲜切花病毒病发生较严重,而且种苗带毒率比较高,许多病毒病主要是由种质材料带毒引起的。一、主要鲜切花病毒的种类1.香石竹斑驳病香石竹斑驳病毒,病叶汁液在20℃下保持70天仍然具有侵染性。香石竹斑驳病毒病症状表现为轻度斑驳,在试管苗和田间植株中病毒含量很高,但不一定表现明显的症状,有时引起花色变异(如产生花斑等)及植株矮化。该病在云南香石竹产区普遍发生,通过汁液摩
Yunnan cut flowers are mainly carnation, gypsophila, roses, forget-me-not, lover grass, lilies, gerbera, chrysanthemum, these plants are easily infected in the natural growth of the virus through cloning is easy to make infected materials From generation to generation, with the increase of the amount of toxins in the plants, ranging from light to germplasm material degradation, flower color variations, flowers become smaller, the weight is the result of plant death. According to the preliminary investigation and research in recent years, Yunnan fresh cutworm virus disease occurs more serious, and the seedling with a higher rate of virulence, many of the virus disease is mainly caused by the species Material caused by poisoning. First, the main cut flowers virus species 1. Carnation mottle disease Carnation mottle virus, diseased leaves juice at 20 ℃ for 70 days is still invasive. Carnation mottle virus disease symptoms showed mild mottling, high in the test tube plantlets and field virus content is high, but not necessarily the obvious symptoms, sometimes caused by flower color variation (such as the occurrence of mosaic, etc.) and plant dwarfing. The disease occurs in Yunnan Carnation area, through the juice friction