Method:To sequence P.ternata and its adulterant P.pedatisecta Schott using PCR direct sequencing and to detect the variation and restriction length polymorphism of their 18S rRNA sequences.

• 方法 :采用PCR直接测序技术测定半夏及其伪品的18SrRNA基因核苷酸离列并作序列变异和选择性内切酶谱 (PCR SR )分析。