绪言至今,柑桔的根毛,据说只在水培或砂培等特殊环境条件下才发生,在一般栽培条件下不发生。但是,本文报导科学工作者们从松山周围的花岗岩母质的土壤上栽培的柑桔树上挖取细根,用电子显微镜进行观察,确认了有根毛发生。同时本文还报导了在砂培中不同海水浓度对根毛发生形态的影响。 Introduction Since now, root hair of citrus is said to occur only under special environmental conditions such as hydroponics or sand culture, and does not occur under normal cultivation conditions. However, the paper reports that scientists scoped fine roots from citrus trees grown on the soil of granite parental material around Songshan and observed them under an electron microscope, confirming the presence of root hairs. At the same time, this paper also reported the effect of different seawater concentrations on root hair morphology in sand culture.