Journal of Hebei University (Natural Science Edition) ›› 2020, Vol. 40 ›› Issue (2): 176-183.DOI: 10.3969/j.issn.1000-1565.2020.02.010

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Allelopathic effects of aqueous extracts from soil of medicinal plant Cinnamomum migao on Liquidambar formosana seedlings

LIU Jiming,WU Mengyao,XIONG Xue,CHEN Jingzhong,WEN Anlai   

  1. School of Forestry, Guizhou University, Guiyang 550025, China
  • Received:2019-07-10 Online:2020-03-25 Published:2020-03-25

Abstract: From the perspective of allelopathic effects,the study investigated the effects of donors,the aqueous extracts of rhizosphere soil and forest soil of Cinnamomum migao H W Li,on receptors,Liquidambar formosana Hance seedlings,with respect to morphological characteristics,osmotic substances,antioxidant system and soil enzyme activities.We preliminaryly explored the possibility of C. migao and L. formosana complex operating system.Results showed: in addition to the physiological indicators of L. formosana under the treatment of the aqueous extracts of forest soil and slight inhibition of soil enzyme activity of L. formosana under the treatment of the aqueous extracts of rhizosphere soil,both the aqueous extracts of rhizosphere soil and forest soil can promote the growth of L. formosana seedlings.The intensity of allelopathic effects by the aqueous extracts of rhizosphere soil on L. formosana seedlings was higher than that by the aqueous extracts of rhizosphere soil.Under the treatment of the aqueous extracts of rhizosphere soil of C. migao,soluble protein content,soluble starch content,free proline content,MDA content- DOI:10.3969/j.issn.1000-1565.2020.02.010药用植物米槁土壤水浸提液对枫香幼苗的化感作用刘济明,武梦瑶,熊雪,陈敬忠,文安来(贵州大学 林学院,贵州 贵阳 550025)摘 要:以米槁Cinnamomum migao H W Li根际土壤与林间土壤水浸提液为供体,枫香Liquidambar formosana Hance幼苗为受体,从化感作用的角度出发,探究枫香幼苗形态特征、渗透物质、抗氧化系统及土壤酶活性的变化,对米槁和枫香的复合经营系统进行可行性分析.结果表明:除在林间土壤水浸提液处理下的枫香生理指标及在根际土壤水浸提液处理下的枫香土壤酶活性呈现轻微的抑制作用外,2种土壤水浸提液均能促进枫香幼苗的生长,根际土壤水浸提液对枫香幼苗化感作用的强度高于林间土壤水浸提液.在米槁根际土壤水浸提液处理下,可溶性蛋白、可溶性淀粉、游离脯氨酸和丙二醛(MDA)含量及土壤过氧化氢酶(S-CAT)活性显著上升,土壤多酚氧化酶(S-PPO)活性显著下降;超氧化物歧化酶(SOD)活性、土壤脲酶(S-UE)活性、土壤酸性磷酸酶(S-ACP)活性随水浸提液质量浓度的升高呈低促高抑现象.在米槁林间土壤水浸提液处理下,可溶性淀粉和MDA含量及S-UE、S-CAT和S-ACP活性呈总体上升,可溶性蛋白含量随质量浓度升高呈低促高抑现象.说明药用植物米槁与枫香之间存在化感作用,在米槁林下种植枫香有利于枫香的生长,为人工阔叶复合经营系统的建立提供可行性依据.关键词:化感作用;水浸提液;林间土壤;根际土壤中图分类号:Q948.1 文献标志码:A 文章编号:1000-1565(2020)02-0176-08Allelopathic effects of aqueous extracts from soil of medicinal plant Cinnamomum migao on Liquidambar formosana seedlingsLIU Jiming,WU Mengyao,XIONG Xue,CHEN Jingzhong,WEN Anlai(School of Forestry,Guizhou University,Guiyang 550025,China)Abstract: From the perspective of allelopathic effects,the study investigated the effects of donors,the aqueous extracts of rhizosphere soil and forest soil of Cinnamomum migao H W Li,on receptors,Liquidambar formosana Hance seedlings,with respect to morphological characteristics,osmotic substances,antioxidant system and soil enzyme activities.We preliminaryly explored the possibility of C. migao and L. formosana complex operating system.Results showed: in addition to the physiological indicators of L. formosana under the treatment of the aqueous extracts of forest soil and slight inhibition of soil enzyme activity of L. formosana under the treatment of the aqueous extracts of rhizosphere soil,both the aqueous extracts of rhizosphere soil and forest soil can promote the growth of L. formosana seedlings.The intensity of allelopathic effects by the aqueous extracts of rhizosphere soil on L. formosana seedlings was higher than that by the aqueous extracts of rhizosphere soil.Under the treatment of the aqueous extracts of rhizosphere soil of C. migao,soluble protein content,soluble starch content,free proline content,MDA content- 收稿日期:2019-07-10 基金项目:贵州省科技计划项目(黔科合支撑[2019]2774号);贵州省社会发展攻关计划项目(黔科合SY字[2015]3023-1) 第一作者:刘济明(1963—),男,重庆人,贵州大学教授,博士生导师,主要从事植物生态学研究.E-mail: karst0623@163.com第2期刘济明等:药用植物米槁土壤水浸提液对枫香幼苗的化感作用and S-CAT activity increased significantly,while S-PPO activity decreased obviously.The activities of SOD,S-UE and S-ACP showed a low growth inhibition.Under the treatment of the aqueous extracts of forest soil of C. migao,soluble starch content,MDA content,S-UE activity,S-CAT activity,and S-ACP activity increased overall.The content of soluble protein showed the hormesis effect.It indicated that there was allelopathic effect between medicinal plant C. migao and L. formosana.It is advantageous for the growth of L. formosana to plant them under the forest of C. migao.It provides a feasible basis for the establishment of anartifical broad-leaf compound management system.

Key words: allelopathy, aqueous extract, forest soil, rhizosphere soil

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