【摘要】 <正>‘海螺’望春花（Yulania denudata‘Hailuo’）为安徽省怀宁县石镜乡海螺山特有的药用植物品种。虽然海螺山的‘海螺’望春花古树树龄已经超过百年,但是依然能生产大量花蕾,且香气浓郁。近几年,由‘海螺’望春花古树种子播种获得的幼树已大量开花。已有研究表明:不同栽培模式下‘海螺’望春花的花蕾产量存在差异^[1],其不同家系间花蕾的挥发油含量及化合物组成也存在差异^[2],但关于其实生苗培育的幼树和古树花苞挥发性成分的含量和组成差异尚不清楚,不利于对‘海螺’望春花资源进行有效开发和利用。更多还原

【Abstract】 The composition and relative contents of volatile components in unflowering and flowering buds of saplings and ancient trees of Yulania denudata ‘Hailuo’ were detected by using SDE-GC-MS. 53 volatile components are detected from flower buds of saplings and ancient trees in total, in which, there are 14 common components, their total relative contents in unflowering and flowering buds of saplings are 81.95% and 75.51%, respectively, while those in unflowering and flowering buds of ancient trees are 87.20% and 83.72%, respectively. There are differences in specific volatile components of unflowering and flowering buds of saplings and ancient trees. It is suggested that the major volatile components in flower buds of saplings of Y. denudata ‘Hailuo’ are similar to those of ancient trees, and flower buds of saplings can replace flower buds of ancient trees.更多还原