小结巨峰品种落花落果严重,果穗易松散,这也许是品种特性造成的,但是,文献记载产生这种现象是因为扇叶病毒所致。并且在巨峰新叶上出现花斑、退绿斑点、叶脉透明及畸形等病毒症状极多,实际上从部份树的汁液已经鉴定出传染性病毒。因此要求切实做到无毒化。作为无病毒的手段,从前是采用热处理方法,但巨峰等在处理过程中有枯死现象。另一方面,采 Summary Jufeng varieties falling flowers serious, easy to loose ears, which may be caused by the characteristics of breeds, but the literature records this phenomenon is due to the fan virus. And in the new leaf on the Kyoho spotted, green spots, transparent and abnormal veins and other symptoms of the virus very much, in fact, part of the juice has been identified from the juice of infectious viruses. Therefore, it is required to be truly non-toxic. As a virus-free means, in the past is the use of heat treatment, but Jufeng in the process of withered phenomenon. On the other hand, mining