摘要
目的:研究不同生长年限与采收期对金荞麦产量、活性成分含量及经济效益的影响,明确金荞麦适宜的生长年限及采收期。方法:采用HPLC测定不同采收期金荞麦中表儿茶素、表儿茶素没食子酸酯的含量,样方法计算药材产量,通过调查统计种植成本并分析经济效益。结果:不同采收期的金荞麦,其活性成分含量存在显著差异,2年生11月采收的金荞麦其表儿茶素含量最高,3年生7月采收的金荞麦其表儿茶素没食子酸酯含量最高。从产量的角度分析,2~4年生金荞麦的逐年增产率呈现下降趋势。从经济效益的角度分析,2年生金荞麦的年产值及投产比均最高。因此,采收2年生金荞麦可获得较高产量及实现经济利益最大化。结论:表儿茶素为《中华人民共和国药典》2020年版对金荞麦质量控制的评价指标,如果以表儿茶素作为金荞麦药材质量的考核指标,2年生11月是适宜采收期,此时期采收的金荞麦其产量较大、质量佳且种植户可获得最大的经济利益。
Objective:To determine the suitable growth ages and harvesting time of Fagopyrum dibotrys through a study on the impact of different growing ages and harvesting time on the yield,contents of medicinal active ingredients,and economic benefits of F.dibotrys.Methods:The HPLC method was used to determine the contents of epicatechin and epicatechin gallate in F.dibotrys at different harvesting time.The quadrat method was then adopted to calculate the yield of the medicinal material,and the planting costs being investigated and calculated to analyze the economic benefits.Results:There existed significant differences in the contents of medicinal active ingredients of F.dibotrys at different harvesting time.The epicatechin content reached to the highest in F.dibotrys with two years of growing ages and harvested in November,and F.dibotrys with three years of growing ages and harvested in July was of the highest content of epicatechin gallate.Analyzed from the output perspective,the annual rate of growth of F.dibotrys with two to four years of growing ages showed a downward trend,yet,from the perspective of economic benefits,the highest annual output value and input-output ratio were achieved in the two-year-old F.dibotrys.Therefore,harvesting two-year-old F.dibotrys can obtain a higher yield and maximized economic benefits.Conclusion:Epicatechin is an evaluation index for the quality control of F.dibotrys in the 2020 edition of the Pharmacopeia of the People′s Republic of China.If the quality of F.dibotrys is evaluated in accordance with the epicatechin content,the suitable harvesting time shall be in November with two years growing time,because at this time,F.dibotrys can reach a higher yield and best quality,and bring greatest economic benefits to herbal farmers.
作者
张晶
魏胜利
李娇
付昌奎
ZHANG Jing;WEI Sheng-li;LI Jiao;FU Chang-kui(School of Chinese Materia Medica,Beijing University of Chinese Medicine,Beijing 102488,China;Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs,Ministry of Education,Beijing 102488,China;Chongqing Taiji Chinese Medicine Planting Development Co.,Ltd.,Chongqing 408000,China)
出处
《中国现代中药》
CAS
2021年第3期501-505,535,共6页
Modern Chinese Medicine
基金
国家重点研发计划项目(2017YFC1701400)。
关键词
金荞麦
适宜采收期
产量
药用活性成分
Fagopyrum dibotrys(D.Don)Hara.
suitable harvesting time
yield
medicinal active ingredients
