Allelopathy of Invasive Weed-Aster subulatus and its Harmful Evaluation
By means of bioassay in laboratory, the allelopathy of Aster subulatu,& 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 obviously .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.
A ster subulatusAllelopathyHarmful effectEvaluation