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应用生态学报 ›› 2020, Vol. 31 ›› Issue (7): 2251-2256.doi: 10.13287/j.1001-9332.202007.030

• 植物化感作用专栏 • 上一篇    下一篇

苘麻挥发油对小麦、玉米和大豆萌发及幼苗生长的化感作用

李春英1,2, 田瑶1,2, 于美婷1,2, 赵春建1,2*   

  1. 1东北林业大学森林植物生态学教育部重点实验室, 哈尔滨 150040;
    2东北林业大学化学化工与资源利用学院, 哈尔滨 150040
  • 收稿日期:2020-02-03 接受日期:2020-05-22 出版日期:2020-07-15 发布日期:2021-01-15
  • 通讯作者: E-mail: zcj@nefu.edu.cn
  • 作者简介:李春英, 女, 1976年生, 博士, 副教授。主要从事植物资源学研究。E-mail: nefujane@aliyun.com
  • 基金资助:
    中央高校基本科研业务费项目(2572017CA11)和黑龙江省归国人员科学基金项目(LC2017005)资助

Allelopathic effects of velvetleaf volatile oil on germination and seedling growth of wheat, maize, and soybean

LI Chun-ying1,2, TIAN Yao1,2, YU Mei-ting1,2, ZHAO Chun-jian1,2*   

  1. 1Ministry of Education Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China;
    2College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
  • Received:2020-02-03 Accepted:2020-05-22 Online:2020-07-15 Published:2021-01-15
  • Contact: E-mail: zcj@nefu.edu.cn
  • Supported by:
    This work was supported by the Fundamental Research Fund for the Central Universities (2572017CA11) and the Science Foundation for Returned Oversea Scholars of Heilongjiang Province (LC2017005).

摘要: 苘麻是旱田常见杂草,可造成作物减产,化感作用是造成减产的可能原因之一。本研究分析了苘麻挥发油成分对3种旱田作物小麦、玉米和大豆种子萌发和幼苗生长的化感作用。结果表明: 应用气相色谱-质谱(GC-MS),从苘麻挥发油中鉴定出26种化学成分,占总峰面积的98.1%,其中,低分子量萜类成分有α-蒎烯、桉树醇、α-松油烯、β-松油烯、反式α-紫罗兰酮、反式β-紫罗兰酮。苘麻挥发油饱和水溶液能通过滤纸和土壤2种基质抑制3种作物种子萌发。苘麻挥发油能通过空气、滤纸和土壤3 种基质抑制3种作物幼苗生长,对小麦的抑制作用最强,玉米和大豆次之。苘麻挥发油对小麦生长的抑制作用以空气载体最强,滤纸和土壤载体次之。挥发油中低分子量的萜类成分可能是重要的化感成分。

关键词: 苘麻, 挥发油, 小麦, 玉米, 大豆, 化感作用

Abstract: Velvetleaf (Abutilon theophrasti) is a common weed in dryland, which can reduce crop yield. Allelopathy is one of the possible reasons resulting in crop yield reduction. In this study, we analyzed the allelopathic effect of velvetleaf volatile oil components on germination and seedling growth of three dryland crops, wheat (Triticum aestivum), maize (Zea mays), and soybean (Glycine max). A total of 26 compounds in velvetleaf volatile oil were identified by GC-MS, accounting for 98.1% of the total chromatographic peak areas. The terpenes with lower molecular weight in the volatile oil were α-pinene, eucalyptol, α-terpinolene, β-terpinene, trans-α-ionone, and trans-β-ionone. The saturated aqueous solution of velvetleaf volatile oil could inhibit seed germination of three crops by filter paper and soil. Velvetleaf volatile oil could inhibit the seedling growth of three crops through air, filter paper, and soil. Wheat was the most susceptible to volatile oil, followed by maize and soybean. The inhibitory effect of volatile oil on the growth of wheat was the strongest in air medium, followed by filter paper and soil medium. The lower molecular weight of terpene components from volatile oil might be the important allelochemicals.

Key words: velvetleaf, volatile oil, wheat, maize, soybean, allelopathy