河南农业科学2017，Vol.46Issue(2)：73-77,5.DOI:10.15933/j.cnki.1004-3268.2017.02.015
外来入侵植物刺苍耳各部位的化感作用研究
Allelopathy of Each Part of Invasive Plant Xanthium spinosum L.
摘要
Abstract
The allelopathic effect of aqueous and ethanol extracts of different plant parts ( i. e. root,stem, leaf,fruit) of the invasive plant Xanthium spinosum L. was evaluated at 0. 05 g/mL on Setaria glauca,Lo-lium multiflorum,Lactuca sativa and Brassica chinensis. The results showed that among the aqueous ex-tracts,leaf extract exhibited the most potent inhibitory activity,which suppressed the germination rate and root length of S. glauca,L. multiflorum,L. sativa,B. chinensis by 36. 4%,17. 9%,25. 8%,18. 7% and 62. 7%,68. 4%,26. 8%,34. 7%,respectively. The ethanol extract of leaves inhibited root length of S. glauca,L. multiflorum,L. sativa and B. chinensis by 92. 5%,89. 3%,36. 7% and 48. 4%,respectively. Furthermore,root and fruit extracts also showed significant allelopathic activity against three plants,inhibi-ting root growth by 21. 2%—46. 4%( except B. chinensis) and 48. 0%—54. 8%( except L. multiflo-rum) ,respectively. Overall,the inhibitory activity of the ethanol extracts was stronger than the aqueous ex-tracts. This study reveals that the major active allelochemicals are present in the leaf ethanol extract.关键词
刺苍耳/外来入侵植物/浸提液/化感作用Key words
Xanthium spinosum L./exotic invasive plant/extract/allelopathy分类
农业科技引用本文复制引用
袁着耕,刘影,邵华,赵玉,胡云霞..外来入侵植物刺苍耳各部位的化感作用研究[J].河南农业科学,2017,46(2):73-77,5.基金项目
新疆维吾尔自治区自然科学基金项目 (2015211C291) （2015211C291）
