文献类型：期刊文献

中文题名：白条党参种苗的等级划分标准研究

英文题名：Codonopsis pilosula seedlings grading standards

作者：杨扶德[1];罗文蓉[2];崔治家[1];侯嘉[1];王明伟[1]

第一作者：杨扶德

机构：[1]甘肃中医药大学;[2]甘肃省中医院

第一机构：甘肃中医药大学

年份：2017

卷号：28

期号：2

起止页码：452

中文期刊名：时珍国医国药

外文期刊名：Lishizhen Medicine and Materia Medica Research

收录：北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：甘肃省自然科学基金(No.1107RJZA210);国家自然科学基金(No.81360622);甘肃省省属普通本科高校基本科研业务费专项资金(No.2305136305);甘肃省兰州市2014年人才创新创业专项(No.2014-2-15)

语种：中文

中文关键词：白条党参;种苗;等级;标准;研究

外文关键词：Codonopsis pilosula; Seedlings; Grade; Standards; Studies;

摘要：目的制定白条党参种苗的等级划分标准。方法测定白条党参种苗单株鲜重、单株干重、含水量、苗长、芽体长、芽体个数、侧根数等质量指标的基础上,采用K均值聚类法划分种苗类别,制定等级标准。结果白条党参种苗根据检验及K类分析,分为四个等级:一级种苗单株鲜重7.8~2.9g,苗体长36.0~23.2cm,苗直径0.71~0.46mm;二级种苗单株鲜重2.8~1.5g,苗体长26.3~22.6cm,苗直径0.50~0.35mm;三级种苗单株鲜重1.4~0.9g,苗体长22.5~18.6cm,苗直径0.35~0.28mm;四级种苗单株鲜重0.8~0.2g,苗体长18.0~6.0cm,苗直径0.27~0.18mm。结论以种苗单株鲜重、苗长、苗直径等3项指标作为分级标准。种苗分级移栽后,有利于药材质量的提高和药材产量的增加,种苗等级越高,药材涨势越好,建议在生产实践中,应选用质量好、等级高的种苗,规范化栽培中采用一、二级种苗。
Objective To establish grading standards of Codonopsis pilosula seedlings. Methods K-means clustering method was used to classify them by measuring fresh weight and dry weight of each plant,moisture content,seedling length,bud length,number of buds,number of lateral roots and other quality indexes. Results According to the results of the test and K analysis,Codonopsis pilosula seedlings are divided into four levels. As for the first-grade seedlings,fresh weight of each plant is 7. 8 -2. 9 g; seedling length 36. 0 - 23. 2 cm and seedling diameter 0. 71 - 0. 46 mm. For the second-grade seedlings,fresh weight of each plant is 2. 8 - 1. 5 g; seedling length 26. 3 - 22. 6 cm and seedling diameter 0. 50 - 0. 35 mm. For the third-grade seedlings,fresh weight of each plant is 1. 4 - 0. 9 g; seedling length 22. 5 - 18. 6 cm and seedling diameter 0. 35 - 0. 28 mm. For the fourth-grade seedlings,fresh weight of each plant is 0. 8 - 0. 2 g; seedling length 18. 0 - 6. 0 cm and seedling diameter 0. 27 -0. 18 mm. Conclusion Three indicators,fresh weight of each plant,seedling length and seedling diameter were used as the grading standards. Following the grading standards,the quality and production of medicinal herbs would increase if they were classified before transplanted. And the higher the seedlings were,the better the medicinal herbs would grow. It is suggested that seedlings with good quality and high grade were selected in the production,especially the first and the second grade ones.