摘要
以小麦、绿豆、油菜为受体植物,采用室内生物测定方法,研究了钻形紫菀的化感作用。结果表明,0.4、0.6g/ml钻形紫菀茎叶浸提液对小麦、绿豆、油菜活力指数、根长及苗高有明显的抑制作用;钻形紫菀对油菜化感作用最强,其次是小麦、绿豆。在自然条件下,钻形紫菀可以形成单一优势群落,影响生物多样性,具有较大的危害潜力。
By means of bioassay in laboratory,the allelopathy of Aster subulatu,a kind of invasive plant,in the germination of wheat,bean and rape was studied.The results showed that the extraction （0.4 g/ml or 0.6 g/ml ） from restrained the seed vigor index,length of root and seedling height obvlously.According to their synthetic inhibitory effect （SE）,the allelopathy in rape was the strongest,next was wheat and bean.Aster subulatus may form superiority community, affecting the biological diversity, so it had a bigger potential of harmful effect.
出处
《安徽农业科学》
CAS
北大核心
2006年第16期4032-4033,共2页
Journal of Anhui Agricultural Sciences
关键词
钻形紫菀
化感作用
危害
评价
A ste r sub ulatus
Allelopathy
Harmful effect
Evaluation
作者简介
许桂芳（1966-），女，河南新乡人，副教授，从事植物学及植物资源学的教学与科研工作。
