天门冬种苗质量标准研究

摘要

The quality standard of Asparagus cochinchinensis seedlings was determined by measuring and analyzing seedling height, branch number, stem diameter, root number, root tuber number, root tuber length, root tuber width, bud number and single seedling weight of A.cochinchinensis seedlings to regulate production of A.cochinchinensis seedlings and ensure its quantity and quality.Result:The root number, root tuber number and single seedling weight are used as three main indexes for grading of A.cochinchinensis seedlings.A.cochinchinensis seedlings can be divided into three grades.The root number, root tuber number, single seedling weight and survival rate of GradeⅠ, GradeⅡ and Grade Ⅲare≥16, ≥11, ≥64.00 g and 90％, 11-16, 9-11, 41.00～64.00 g and 85％, and 6-11, 5-9, 8.00-41.00 g and 75％respectively.%为规范化生产天门冬种苗, 保证该药材的数量与质量, 对天门冬种苗的株高、分枝数、基径、根数、块根数、块根长宽、芽数和单株重等性状进行测定并统计分析, 确定天门冬种苗质量标准.结果表明:天门冬种苗分级的主要指标为根数、块根数和单株重, 天门冬种苗分为3个等级, 一级种苗:根数≥16根, 块根数≥11个, 单株重≥64.00g, 成活率为90％;二级种苗:根数11～16根, 块根数9～11个, 单株重41.00～64.00g, 成活率为85％;三级种苗:根数6～11根, 块根数5～9个, 单株重8.00～41.00g, 成活率75％.