全周期间作模式胶园间作肾茶的产量及药材质量

Yield and Medicinal Quality of Clerodendranthus spicatus Intercropped under Rubber Plantation with Paired Row Planting System

为评价肾茶在全周期间作模式胶园中的间作发展潜力,以肾茶的露地栽培为对照,对南北行向全周期间作模式胶园间作肾茶的产量及其药材主要质量指标进行了比较分析。结果表明:在南北行向全周期间作模式胶园中间作肾茶,不同观测位置、不同采样时期、不同部位肾茶的产量及其药材质量存在差异,间作各处理肾茶的产量均大幅度低于露地栽培,其中,间作区中产量最高的中间、东侧区地上部产量仅能达到露地栽培约30%的产量水平;虽然部分间作处理的肾茶浸出物、熊果酸含量稍高于露地栽培或与之基本持平,但肾茶地上部的黄酮、迷迭香酸、粗灰分含量均为林下间作差于露地栽培,同时该3个指标均呈现随胶园荫蔽度的增加而变差的趋势。与常规的露地栽培相比,在南北行向全周期间作模式胶园间作条件下,肾茶产量显著下降的同时药材质量变差。因此,肾茶不适宜在南北行向全周期间作模式胶园中间作发展。

The intercropping potential of Clerodendranthus spicatus under the rubber plantation with south-north paired row planting system, with cultivated in open field as CK, were studied, and the yield and main medicinal quality indexes of C. spicatus were assayed. The yield and medicinal quality were different with different treatments, different period and different plant parts. The yield of intercropped was much lower than that of CK. The highest yield of the middle and east side in the plantation treatments was 30% only that of CK. Although some extractive contents and ursolic acid contents were slightly higher than or similar to that of CK, the contents of crude flavonoids and rosmarinic acid as well as crude ash in the above-ground of the intercropped were less than that of CK, and the three indexes were worse when the shade density increased in rubber plantation simultaneously. By comprehensive consideration of yield and medicinal quality C. spicatus is not suitable for intercropping under the rubber plantation with south-north paired row planting system.