研究了缬草(Valeriana officinalis)地下部分的有效成分含量的季节变化以及缬草良种选择。 在成分含量季节变化试验中,分别于1989～1992年春季种植缬草,于同年的8月至次年的4月每2周1次采集地下根及根茎,采用GC及GC-MS检测其精油含量,采用HPLC检测缬草烯酸衍生物、缬草三酯 The seasonal variation of the content of active components in the underground part of Valeriana officinalis and the selection of good varieties of Valeriana officinalis were studied. In the seasonal variation test of composition content, weeds were planted in spring from 1989 to 1992, and underground roots and rhizomes were collected every two weeks from August of the same year to April of the following year. The essential oils were detected by GC and GC-MS. Content, HPLC detection of valeric acid derivatives, valerian triester