马铃薯退化是一个很复杂的问题。当我们说病毒性退化时,我们就已经承认了有其他性质的退化,例如遗传的和生理的。病毒性退化的特征在于具有感染病毒的一定症状并且发生得较快。卷叶和花叶(后者包括皱缩、矮化,坏死斑等复合症状)是病毒性退化的两个主要类型。花叶型主要发生在南部平原地区和春季播种的条件下,正是花叶型病毒性退化成为限制我国马铃薯生产的主要因素。 Potato degradation is a complex issue. When we say that viral degradation, we have already admitted to have other properties of the degradation, such as genetic and physiological. Viral degeneration is characterized by certain symptoms of infection with the virus and occurs more rapidly. Curl leaves and mosaic (the latter including the compound symptoms of shrinkage, dwarfing, necrotic spots) are two major types of viral degeneration. Mosaic type occurs mainly in the southern plains and the conditions of spring sowing, it is the mosaic virus-type virus degradation has become the main factor limiting the production of potato in our country.