电波传递在嫁接基本理论研究中的应用

研究发现电波从接穗跃过嫁接面向砧木传递与嫁接的组织学变化相关。砧木和接穗愈伤组织细胞突破隔离层互相嵌合之前，接穗中产生的电波不能传到砧木。砧木和接穗细胞间产生次生胞间连丝后，电波即可沿接穗传至砧木，但此时传递速度慢。当砧木和接穗间产生维管束桥时，电波下传的速度加快。由此可见，通过检测电波跃过嫁接面与否及下传的速度，就可推断嫁接接合部组织学变化状况。电波传递法是一种快速鉴定嫁接植株发育过程的新方法。

APPLICATION OF ELECTRICAL WAVE TRANSMISSION IN BASIC RESEARCH OF GRAFTING

Electrical wave(EW) transmission from scion to stock across the grafting interface was related to the histological changes during the development of graft union. Variation wave (VW) could not be transmitted to stock from scion before isolation layer broken and callus interdigitation.As plasmodesmata formed secondarily at the interface between stock and scion where the isolation layer had disappeared,VW could be transmitted from scion to stock,but its velocity was not rapid until the vascular bridges form between two partners of graft union.Hence,the authors could deduce the degree of graft union formation by measuring whether VW could be transmitted from scion to stock or not and its velocity.EW transmission method was a new tool for quickly detecting the formation of graft union.