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钻形紫菀化感作用及危害评价

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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.
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

许桂芳、刘艳侠

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河南科技学院,河南,新乡,453003

商丘职业技术学院,河南,商丘,476000

钻形紫菀 化感作用 危害 评价

2006

安徽农业科学
安徽省农业科学院

安徽农业科学

CSTPCDCSCD北大核心
影响因子:0.413
ISSN:0517-6611
年,卷(期):2006.34(16)
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