The seeds of accompanied species Bidens pilosa and energy plant Delavaya toxocarpa were treated with the aqueous extracts of root, stem and flower of Parthenium hysterophorus.

• 摘要以伴生草本植物三叶鬼针草和能源木本植物茶条木为受试植物，初步研究了外来入侵植物银胶菊根、茎、花水浸提液对二者种子萌发的化感效应。