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一、马铃薯为什么退化?马铃薯在气温较高的地区容易退化,植株变矮,叶片皱缩变小。有的还出现卷叶和花叶,薯块变小、变少或龟裂,产量品质明显下降。这种病状叫马铃薯退化。退化原因有的说是高温引起的,有的说是病毒引起的,有的说是长期无性繁殖的细胞内部生理机能逐渐衰退产生的等。但较一致的认识是主要是病毒引起的。据试验研究,感染马铃薯退化的病毒有30多种,生产中常看的有10多种。马铃薯病毒主要是通过蚜虫和浮尘子等昆虫传播,有的病毒是通过摩擦传染。病毒传染到健康植株体内,一遇适合环境条件,迅速增殖、发展。一般在高温和干旱环境条件下发生严重。同时,病毒在不同繁
First, why the degradation of potatoes? Potatoes in the higher temperatures easily degenerated, shorter plants, leaf shrinkage smaller. Some also appeared curly leaves and mosaic leaves, potato smaller, less or cracked, yield and quality decreased significantly. This condition is called potato degeneration. Some say that the cause of degradation caused by high temperatures, and some said that caused by the virus, and some say is the long-term clonal proliferation of cells within the physiological function of the gradual decline and so on. However, a more consistent understanding is mainly caused by viruses. According to experimental studies, there are more than 30 kinds of viruses that infect potatoes and 10 kinds of viruses are often seen in production. Potato virus is mainly transmitted by insects such as aphids and floating dust, and some viruses are transmitted by friction. Virus infection to healthy plants, one case of environmental conditions, the rapid proliferation and development. It is generally serious in high temperature and arid environment. At the same time, the virus is different