Allelopathy of Each Part of Invasive Plant Xanthium spinosum L.
YUAN Zhuogeng
LIU Ying
SHAO Hua
ZHAO Yu
HU Yunxia
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.
Keywords：Xanthium spinosum L.exotic invasive plantextractallelopathy
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 73-77 )