为探究实葶葱（Allium galanthum Kar. et Kir.）对其伴生植物的化感作用，对25、50、75和100 mg·mL^-1实葶葱果皮水浸提液处理下蒲公英（Taraxacum mongolicum Hand.-Mazz.）、苦苣菜（Sonchus oleraceus Linn.）、马齿苋（Portulaca oleracea Linn.）、紫苜蓿（Medicago sativa Linn.）、菥蓂（Thlaspi arvense Linn.）、反枝苋（Amaranthus retroflexus Linn.）、大翅蓟（Onopordum acanthium Linn.）、骆驼蓬（Peganum harmala Linn.）和雀麦（Bromus japonicus Thunb. ex Murr.）的种子萌发和幼苗生长指标进行比较，并对不同质量浓度实葶葱果皮水浸提液对各伴生植物的综合化感效应指数进行分析。结果表明：总体来看，在25~100 mg·mL^-1实葶葱果皮水浸提液处理下，各伴生植物种子的发芽率、发芽势、发芽指数和活力指数低于对照（0 mg·mL^-1实葶葱果皮水浸提液），并随实葶葱果皮水浸提液质量浓度提高而下降；除雀麦外，其他8种伴生植物幼苗的单株芽质量、单株根质量、芽长和根长也随实葶葱果皮水浸提液质量浓度提高而下降，并且，在25 mg·mL^-1实葶葱果皮水浸提液处理下较对照升高，在100 mg·mL^-1实葶葱果皮水浸提液处理下较对照降低。从不同质量浓度实葶葱果皮水浸提液对各伴生植物的综合化感效应指数看，实葶葱果皮水浸提液对多数伴生植物的种子萌发和幼苗生长有抑制作用，抑制强度随实葶葱果皮水浸提液质量浓度提高而增强。总体来看，在相同质量浓度处理下，实葶葱果皮水浸提液对雀麦的综合化感效应指数的绝对值最大。综上所述，实葶葱果皮具有一定的化感能力，其水浸提液能够影响伴生植物的种子萌发和幼苗生长，且对不同种类伴生植物的化感效应存在差异，表现为对雀麦的化感效应最强。

 To study the allelopathic effects of Allium galanthum Kar. et Kir. on its associated plants， seed germination and seedling growth indexes of Taraxacum mongolicum Hand.-Mazz.， Sonchus oleraceus Linn.， Portulaca oleracea Linn.， Medicago sativa Linn.， Thlaspi arvense Linn.， Amaranthus retroflexus Linn.， Onopordum acanthium Linn.， Peganum harmala Linn.， and Bromus japonicus Thunb. ex Murr. treated by 25， 50， 75， and 100 mg·mL^-1 pericarp aqueous extracts of A. galanthum were compared， and comprehensive allelopathic effect indexes of different mass concentrations of pericarp aqueous extracts of A. galanthum on each associated plant were analyzed. The results show that in general， under 25-100 mg·mL^-1 pericarp aqueous extracts of A. galanthum， germination rate， germination potential， germination index， and vital index of seeds of each associated plant are lower than those of the control （0 mg·mL^-1 pericarp aqueous extracts of A. galanthum）， and decrease with the increase of mass concentration of pericarp aqueous extracts of A. galanthum； except for B. japonicus， bud mass per plant， root mass per plant， bud length， and root length of seedlings of other eight associated plants also decrease with the increase of mass concentration of pericarp aqueous extracts of A. galanthum， in addition， those under 25 mg·mL^-1 pericarp aqueous extracts of A. galanthum treatments increase compared with the control， while those under 100 mg·mL^-1 pericarp aqueous extracts of A. galanthum treatments decrease compared with the control. Considering comprehensive allelopathic effect indexes of different mass concentrations of pericarp aqueous extracts of A. galanthum on each associated plant， pericarp aqueous extracts of A. galanthum have inhibition effects on seed germination and seedling growth of most associated plants， and the inhibition effects are enhanced with the increase of mass concentrations of pericarp aqueous extracts of A. galanthum. Overall， under the same mass concentration treatment， the absolute values of comprehensive allelopathic effect indexes of pericarp aqueous extracts of A. galanthum on B. japonicus is the largest. In conclusion， pericarp of A. galanthum has some allelopathic ability， and its aqueous extracts can affect the seed germination and seedling growth of the associated plants； there are differences in its allelopathic effects on different associated plants， in which， the allelopathic effect on B. japonicus is the strongest.