素花党参种苗质量分级标准研究  

Studies on classification criteria of Codonopsis pilosula var.modesta seedlings in southern of Gansu

作　　者：李瑞杰[1] 陈垣[1,2] 郭凤霞[1,3] 孙连虎[3] 米永伟[1] 

机构地区：[1]甘肃农业大学甘肃省作物遗传改良与种质创新重点实验室植物生产类实验教学中心甘肃省干旱生境作物学重点实验室,甘肃兰州730070 [2]甘肃农业大学农学院,甘肃兰州730070 [3]甘肃农业大学生命科学技术学院,甘肃兰州730070

出　　处：《中国中药杂志》2012年第20期3041-3046,共6页China Journal of Chinese Materia Medica

基　　金：国家科技支撑计划项目(2007BAI37B03);院企合作项目;企业创新基金项目(1002616203384);全国第四次中药资源普查项目(201207002-02-12);甘肃省干旱生境作物学重点实验室开放基金项目(05)

摘　　要：目的:制定素花党参种苗质量分级标准。方法:以甘肃省素花党参道地产区不同产地征集的30份素花党参种苗为研究材料,在测定种苗单株鲜重、含水率、苗长、苗粗、芽体长和芽体个数等质量指标基础上,采用K均值聚类法划分种苗类别,制定分级标准。结果:不同产地来源素花党参种苗分为3个等级:一级种苗单株鲜重不小于14.1 g,苗长不小于24.0cm,苗粗不小于1.17 cm;二级种苗单株鲜重3.5～14.0 g,苗长21.6～23.9 cm,苗粗0.68～1.16 cm;三级种苗单株鲜重1.9～3.4 g,苗长13.5～21.5 cm,苗粗0.54～0.67 cm。结论:征集的30份素花党参种苗样品中,一、二级种苗占66.7%,建议规范化生产中采用一、二级种苗。Objective： To reveal the quality grade of Codonopsis pilosula vat. modesta seedlings from Gansu and provide the sci- entific basis for establishment of the seedling quality classification standard. Method ： Thirty batches of C. pilosula var. modesta seed- lings collected from varied producing area of Gansu were selected as testing materials, the fresh weight of single plant, water content, length of seedling, diameter of seedling, length of bud and number of buds were determined and the grading standard were systemically analyzed by K-Means Cluster. Result： The C. pilosula vat. modesta seedlings could be divided into 3 grades of criteria, i.e. the first- grade seedlings were at least 14. 1 g of the fresh weight of seedling, 24.0 cm of length of seedling, 1.17 cm of diameter of seedling; the second-grade seedlings were 14.0-3.5 g of the fresh weight of seedling, 23.9-21.6 cm of length of seedling, 1.16-0. 68 cm of diameter of seedling; the third-grade seedlings were 3.4-1.9 g of the fresh weight of seedling, 21.5-13.5 cm of length of seedling, 0.67-0.54 cm of diameter of seedling. Conclusion：Among 30 batches of C. pilosula vat. modesta seedlings, 66.7% of the seedlings belonged to the first and the second grades. It suggests that the first and the second grade seedlings should be used in the standard production.

关 键 词：甘肃 素花党参 种苗质量 分级标准 

分 类 号：S567.53[农业科学—中草药栽培]