白鲜种苗质量分级标准研究  

Study on the Quality Grading Standard of Dictamnus dasycarpus Turcz. Seedlings

作　　者：吴伟 尹海波[1] 王丹[1] 于学霖 马婧洁 WU Wei;YIN Haibo;WANG Dan;YU Xuelin;MA Jingjie(Liaoning University of Traditional Chinese Medicine School of Pharmacy,Dalian Liaoning 116000,China)

机构地区：[1]辽宁中医药大学药学院,辽宁大连116000

出　　处：《种子》2023年第10期139-143,共5页Seed

基　　金：辽宁省科技厅科技特派行动专项计划;辽宁省科技厅应用基础研究计划项目“辽产道地药材龙胆质量标志物辨识及道地性形成生境机制研究”;辽宁省卫健委“辽宁省道地药材标准体系建立”项目(2022003)。

摘　　要：以白鲜主产区所流通的种苗为实验对象,通过测定白鲜种苗的主根长、主根粗、单苗鲜重、芽数、芽长、芽粗等主要指标,分别采用相关性分析、主成分分析和K-均值聚类分析,对17个批次共1721株白鲜种苗进行质量分级,制定白鲜种苗分级标准。结果表明,白鲜种苗可分为Ⅰ等种苗、Ⅱ等种苗和Ⅲ等种苗3个等级。Ⅰ等种苗的主根长>18.1 cm、芽长>3.0 cm、鲜重>2.7 g;Ⅱ等种苗的主根长>13.6~≤18.1 cm、芽长>2.0~≤3.0 cm、鲜重>1.8~≤2.7 g;Ⅲ等种苗主根长>7.3~≤13.6 cm、芽长>1.2~≤2.0 cm、鲜重>1.2~≤1.8 g。本研究初步建立了白鲜种苗的质量分级标准。The seeds and seedlings circulating in the main producing areas of Dictamnus dasycarpus Turcz.were taken as the experimental objects,and the quality of 1721 strains of fresh-fresh seedlings from 17 batches was graded by correlation analysis,principal component analysis and K-means cluster analysis,using the main indexes of the main root length,thickness,fresh weight of single seedling,bud number,bud length and bud thickness,respectively in order to establish the grading standard of Dictamnus dasycarpus Turcz.seedlings.Results showed that the seedlings were divided into three grades:Ⅰ,ⅡandⅢ.Among them,the taproot length of GradeⅠseedlings was>18.1 cm,bud length>3.0 cm,fresh weight>2.7 g;Taproot length of GradeⅡwas>13.6-≤18.1 cm,bud length>2.0-≤3.0 cm,fresh weight>1.8-≤2.7 g;Seedling taproot length of GradeⅢwas>7.3-≤13.6 cm,bud length>1.2-≤2.0 cm,fresh weight>1.2-≤1.8 g.In this study,the quality grading standard of Dictamnus dasycarpus Turcz.seedlings was preliminarily established.

关 键 词：白鲜 种苗 质量分级 聚类分析 

分 类 号：S567.239[农业科学—中草药栽培]