摘要
防风（Saposhnikoviadivaricata（Turcz．）Schischk．）为多年生草本植物，直根系。主根和侧根结构相同，初生木质部为二原型。主根中油室数目随着年龄的增长不断增加，第1－2年内，数目增加明显。防风进入生殖生长后，主根的韧皮部与木质部的比例明显减少，根的木质化严重，果期以后根部逐渐腐烂。首次研究了防风根的发育形态学，对防风的栽培管理和评价防风质量具有指导意义。
Saposhnikovia divaricata (Turcz. ) Schischk.is a perennial herb and has a tap rootsystem. In lateral root,there is same structure with the main root,their primary xylem isdiarch. In main root,the number of oil canal was increased with the age adding,it is obviously that we can see the increasing number of oil canal changes in one or two years.Saposhnikovia divaricata entered the stage of reproduction growth,the decreasing ratioof phloem to xylem is obviously in main root,the root becoming wood is seriously. Therotteuness of root is gradaully after fruit stage. In this paper,we first study the developmental morphology of Saposhnikovia divaricata root system,this study guides the cultivation and management and appreciating the quality of Saposhnikovia divaricata.
出处
《西北植物学报》
CAS
CSCD
1997年第4期511-515,共5页
Acta Botanica Boreali-Occidentalia Sinica
关键词
防风
根系
发育形态学
Saposhnikovia divaricata,root system,developmental morphology
