不同栽培基质对红根草根系生长及品质的影响  

Effect of Different Culture Mediums on Root Growth and Quality of Salvia priontis

作　　者：孔德鑫[1] 王满莲[1] 葛玉珍[1] 邹蓉[1] 唐辉[1] 

机构地区：[1]广西植物功能物质研究与利用重点实验室广西壮族自治区中国科学院广西植物研究所,广西桂林541006

出　　处：《北方园艺》2015年第9期133-137,共5页Northern Horticulture

基　　金：广西重大专项计划资助项目(桂科重1298001-1-3);广西自然科学基金资助项目(2013GXNSFBA019172);广西科技成果转化与推广计划资助项目(桂科转1346004-29);桂林市科技攻关资助项目(20120105-10)

摘　　要：以红根草为试材,研究不同栽培基质对红根草根系生长及其生物量积累动态和主要有效成分的影响,比较了4种基质中红根草1年生优良种苗根系的生长速度及生物量的积累动态,并在生物量积累最大时期对其主要有效成分丹参酮Ⅰ、丹参酮ⅡA进行测定。结果表明:不同栽培基质对红根草根系生长及其干物质积累均产生了重要影响。4—6月份根长以基质A(黄土)和基质C(园土)中增长较快,在7月后,则以基质B(园土∶灶土∶沙子=2∶1∶1)和基质D(原产地土壤)较大;基质A中根系数明显少于其它3种基质,8月份后以基质B中根长最大;由不同部位生物量及其生物量分配比例可知,红根草在4—5月份幼苗主要以根部生长为主,而在6—8月份,地上部分叶片快速生长,在生物量分配上占主导地位,9—10月份又以根部占主导地位;通过比较分析丹参酮类含量,发现丹参酮ⅡA在基质B中最高,其次是基质D,基质C中最低;丹参酮Ⅰ在4种基质中均很低,相比较而言,以基质A含量最高,其次是基质B。该研究结果可为红根草人工栽培与繁殖提供参考依据。Taking Salvia priontis as test materials,in order to provide theoretical basis for cultivating Salvia priontis,the effect of different cultivated mediums on root growth and biomass accumulation dynamics as well as the mainly effective components such as tanshinoneⅠ and tanshinoneⅡA of S.priontis were studied.The results showed that the root growth and biomass accumulation of S.priontis were influenced significantly in different culture mediums,the root length were grown faster both in matrix A（loess）and matrix C（garden soil）during in April and June,while the root length were grown faster in matrix B（garden soil∶focal soil∶sand=2∶1∶1）and D（origin soil）after July;the numbers of root in matrix was less than the other three matrixs,but the numbers of root was most in matrixs B among the four matrix after August;when compare with the biomass and the biomass allocation proportion from different parts,both in April and May root grown faster than above ground parts,and the biomass accumulation in root was rapider,while in June and August the above ground parts such as leave grown faster than below ground parts and the biomass accumulation were more than above ground parts,but when got to September the biomass were dominated by root;through analyze tanshinone content in 4matrix,the results indicated that tanshinoneⅡ A in matrix B was the highest,followed by the matrix D,the lowest was in matrix C,the content of tanshinoneⅠ in four kinds of substrate were relative less than tanshinoneⅡ A,when compared with four sorts of matrixs the content of tanshinoneⅠ in matrix A was the highest,followed by the matrix B.

关 键 词：栽培基质 红根草 生物量 丹参酮 品质 

分 类 号：S567.239[农业科学—中草药栽培]