砧木解剖学的研究证实,矮化砧的木质部贮藏物质和活细胞比乔化砧的多,因此,导电能力强,而电阻则小。太波等人用物理方法对新梢的电学性质进行了研究,证明了电导从矮化到乔化规律地下降,而电阻从矮化到乔化规律地上升,他们认为,这是由於矮化砧比乔化砧木质部电解质较多所致.砧木电阻值的高低,受很多因素的影响,特别是砧木直径粗度,对电阻值的影响 Rootstock anatomy studies confirmed that dwarfing ancestors of the xylem storage material and living cells than Qiao anvil and more, therefore, the ability to conduct electricity, while the resistance is small. Taibo and others used physical methods to study the electrical properties of the shoots. It was proved that the conductance decreased from dwarfing to terahertz law, while the resistance increased from dwarfing to tetrization. They believed that this was due to dwarfing Anvil than Qiaohua rootstock more electrolyte due to the quality of rootstock resistance value, by many factors, especially the diameter of rootstock diameter, the impact on the resistance