METHODS:used by GC/MS combinati on technology. RESULTS:The averagy dry weight of single plant(i.e.output)increase gradually from July to next April,the content of uolatile oil is highest in November.

• 方法 :应用GC/MS联用技术分析比较不同采收期对高要广藿香的产量 (平均单株干重 )、含油率以及茎和叶中 1 4个主要成分含量的影响。