磷、钾肥配施对秦艽主、侧根4种环烯醚萜的影响  

Effect of P and K Fertilization on Four Iridoids in Axial and Lateral Root of Gentiana crassicaulis

作　　者：吴春[1] 杨永茂[1] 陈兴福[1] 杨文钰[1] 孟杰[1] 曾羽[1] 成涛 

机构地区：[1]四川农业大学农学院/农业部西南作物生理生态与耕作重点实验室,四川成都611130 [2]四川回春堂中药科技有限公司,四川遂宁629000

出　　处：《中药材》2016年第2期240-244,共5页Journal of Chinese Medicinal Materials

基　　金：四川省"十二五育种公关"子专题(2011NZ0098-12-01)

摘　　要：目的:研究磷、钾肥配施对秦艽主、侧根中4种环烯醚萜苷类成分积累规律的影响。方法:通过田间试验,采用磷、钾2个因素,8个处理的磷、钾肥效应试验的设计,研究磷、钾肥对秦艽主、侧根环烯醚萜苷类成分含量及分布的影响。结果:秦艽主根中4种环烯醚萜苷类成分总量始终大于侧根;常规施肥条件下,秦艽主根和侧根中4种环烯醚萜类成分总量分别为12.36%和9.84%,适当追施磷、钾肥将对秦艽主根和侧根中龙胆苦苷和马钱苷酸总量产生一定影响,对獐牙菜苦苷和獐牙菜苷的含量影响则较小;当磷肥适量时,增施钾肥可增大主、侧根之间4种环烯醚萜苷类成分的含量差异。结论:4种环烯醚萜苷类成分在积累过程中,更多地积累于秦艽主根中,磷、钾肥仅对主、侧根中4种环烯醚萜类成分差异大小有影响。在秦艽药材生产过程中,应注重磷、钾肥的施用,在关注其产量及有效成分含量的同时也应对其主、侧根中有效成分含量的差异性予以重视。Objective ：To study the effect of phosphorus（P） and potassium（K） fertilization on four iridoids in axial and lateral root of Gentiana crassicaulis. Methods ： Field experiment was conducted based on phosphorus and potassium, and the content of four iridoids was analyzed in the axial and lateral root of C, entiana crassicaulis. Results ： Despite of different proportion of phosphorus and potassium, the content of four iridoids in axial root was always higher than that in the lateral root, and under normal fertilizer condition, the content of axial and lateral root was 12. 36% and 9. 84% , respectively. On the condition of phosphorus and potassium fertilization, the content of gentiopicroside and loganic acid were higher than that of the swertiamarin and sweroside both in the axial and lateral root. And the difference of the two parts could be increased by high potassium with appropriate phosphorus application. Conclusion：The four iridoids were more likely to accumulate in the axial root of Gentiana crassicaulis, and phosphorus and potassium fertilization, only affected the different degrees on the content of ingredients among two parts. Thus, more attention should be paid to the use of phosphorus and potas- sium fertilization, and the difference of the active ingredient content in the axial and lateral root of Gentiana crassicaulis.

关 键 词：秦艽 主根 侧根 环烯醚萜类 磷钾配施 

分 类 号：R282.2[医药卫生—中药学]