外源硒对天门冬的生长及有效成分含量的影响  

The effects of exogenous selenium on growth and content of active ingredients on Asparagus cochinchinensis

作　　者：刘孝琴 姚紫妍 廖英杰 武芸[2,3] 陈晓春 廖朝林 LIU Xiao-qin;YAO Zi-yan;LIAO Ying-jie;WU Yun;CHEN Xiao-chun;LIAO Chao-lin(Hubei Academician and Expert Contact Service Center,Wuhan 430071,China;Hubei Key Laboratory of Biological Resources Protection and Utilization,Enshi 445000,Hubei,China;College of Biological and Food Engineering,Hubei Minzu University,Enshi 445000,Hubei,China;Enshi Tujia and Miao Autonomous Prefecture Earth Biotechnology Research Institute,Enshi 445000,Hubei,China;Enshi Yuanhui Technology Development Co.,Ltd.,Enshi 445000,Hubei,China)

机构地区：[1]湖北省院士专家联络服务中心,武汉430071 [2]生物资源保护与利用湖北省重点实验室,湖北恩施445000 [3]湖北民族大学生物与食品工程学院,湖北恩施445000 [4]恩施土家族苗族自治州大地生物科技研究所,湖北恩施445000 [5]恩施州源惠科技开发有限公司,湖北恩施445000

出　　处：《湖北农业科学》2023年第11期73-77,共5页Hubei Agricultural Sciences

基　　金：2021年恩施州科技计划项目(D20210027);湖北民族大学生物资源保护与利用湖北省重点实验室2022年度开放基金项目。

摘　　要：在灌根法施加外源硒的条件下,研究天门冬[Asparagus cochinchinensis(Lour.)Merr]生长(茎长、块根数量、块根长度、块根直径、块根干重)以及天门冬块根有效成分含量的变化规律。结果表明,种植天门冬时向土壤中施加10~40 mg/L的外源硒有利于天门冬的生长。当外源硒浓度为30 mg/L时,每株天门冬块根数量最多,当外源硒浓度为50 mg/L时,对天门冬块根数量有抑制作用;当外源硒浓度为40 mg/L时,天门冬茎长、块根长度、块根直径及块根干重最佳;当外源硒浓度为10~50 mg/L时,对有效成分的积累表现为促进作用,天门冬多糖、皂苷与黄酮积累的整体最适宜外源硒浓度为30 mg/L。Under the condition of applying exogenous selenium by root irrigation,the growth of Asparagus cochinchinensis(stem length,root number,root length,root diameter,root dry weight)and the change rule of active ingredient content in Asparagus cochi⁃nchinensis root were studied.The results showed that adding 10~40 mg/L exogenous selenium to soil during planting Asparagus cochi⁃nchinensis was beneficial to the growth of Asparagus cochinchinensis.When the concentration of exogenous selenium was 30 mg/L,the number of root tuber per plant of Asparagus cochinchinensis was the highest.When the concentration of selenium reached 50 mg/L,it had an inhibitory effect on the number of Asparagus cochinchinensis root tuber.When the concentration of exogenous selenium was 40 mg/L,the stem length,root length,root diameter and root dry weight of Asparagus cochinchinensis were the best.When the concentra⁃tion of exogenous selenium was 10~50 mg/L,it could promote the accumulation of active ingredients.The overall optimal concentration of exogenous selenium for the accumulation of polysaccharides,saponins,and flavonoids in Asparagus cochinchinensis was 30 mg/L.

关 键 词：天门冬[Asparagus cochinchinensis(Lour.)Merr] 外源硒 有效成分 含量 生长 

分 类 号：S567.9[农业科学—中草药栽培] S143.71[农业科学—作物学]