甘肃省宽叶羌活品质对比及其与土壤因子的相关性  

Relationship between Notopterygium forbesii quality and soil factors in Gansu Province

作　　者：谢放[1] 张亚军[1] 常黎明[1] 刘帅[1] 陈晨 

机构地区：[1]兰州交通大学化学与生物工程学院,甘肃兰州730070

出　　处：《草业学报》2017年第9期75-82,共8页Acta Prataculturae Sinica

基　　金：甘肃省中药材产业科技攻关"羌活人工繁殖技术研究与示范"项目(GYC11-04)资助

摘　　要：为了评价甘肃省栽培羌活主产区药材品质的优劣及土壤因子对羌活药材品质的影响情况,对甘肃宽叶羌活主产区的栽培宽叶羌活及土壤进行调查采样,采挖两年生宽叶羌活鲜样,测定其羌活醇、异欧前胡素含量。同时采集土壤样品,分析测定土壤有机质、全氮、全磷、有效磷、速效钾的含量,测定了土壤容重、pH、土壤中粘粒、粉粒、砂粒的比重。通过Pearson相关、冗余分析(RDA)方法分析化学成分与土壤因子间的相关性。结果表明,各产区宽叶羌活中羌活醇与异欧前胡素总含量均达到《中华人民共和国药典》要求;不同产地宽叶羌活中羌活醇和异欧前胡素含量相差较大,药材品质呈现区域性,武都地区、康乐县和卓尼县样品中羌活醇和异欧前胡素总量较高。羌活醇与有机质、全氮、全磷呈显著正相关,与速效钾呈显著负相关;异欧前胡素与容重、有效磷呈极显著正相关,与全氮、有机质呈显著正相关,与速效钾呈显著负相关。因此,土壤容重、全氮、有机质、有效磷、速效钾是影响羌活化学成分积累的主要因素,土壤容重大有利于化学成分的积累。在一定范围内,全氮、有机质含量越高,越能促进化学成分积累,同时还需合理控制速效钾的含量。研究结果可对甘肃省栽培羌活的推广及种植提供借鉴。Notopterygium medicine is the dried rhizome and root of Notopterygium incisum or Notopterygium forbesii , which are members of the Umbelliferae. The aim of this study was to evaluate the quality of cultivated N. forbesii in Gansu Province and i ts relat ionship wi th soil factors. Samples of N. forbesii w ere co llected from cultivation areas in Gansu Province biennially, and the fresh samples were analyzed to determine notopterol and isoimperatorin contents. Soil samples were also collected and the following 10 factors were analyzed： th e con-tents of organic matter, total nitrogen, total phosphorus, available phosphorus, available potassium; volume weight; pH; the contents of cosmids, silt, and grit. The relationships between chemical compounds and eco-logical factors were analyzed by Pearson？s correlation analysis and redundancy analysis （RDA）. The results showed that, in all samples, the contents of notopterol and isoimperatorin met the requirements of the Chinese Pharmacopoeia. The contents of notopterol and isoimperatorin in N. forbesii dif fered am on g d if fe ren t cu l t iv a -tion areas, and N. forbesii sam p le s sh owed ce r ta in reg io na l ch a ra c te r is t ic s . T h e h ig h e s t to ta l c o n te n ts of n o -topterol and isoimperatorin were in samples from Wudu District, Kangle County, and Zhuoni County. Organicmatter, total nitrogen and total phosphorus were significantly and positively correlated with notopterol, availa-ble potassium was significantly and negatively correlated with notopterol content. Volume density and vailable phosphorus were the most important soil factor and were extremely positively correlated with isoimperatorin content, total nitrogen and organic matter were positively correlated with isoimperatorin. Isoimperatorin con-tent was significantly negatively correlated with available potassium. Therefore, the soil volume weight, total nitrogen, organic matter, available phosphorus and available potassium were identified as the main

关 键 词：宽叶羌活 羌活醇 异欧前胡素 土壤因子 冗余分析 相关分析 

分 类 号：S567.239[农业科学—中草药栽培]