Allelopathic effects of scandent hop (Humulus scandens Lour) on barnyard grass (Echinochloa crus-galli L.)

文献类型： 外文期刊

第一作者： Xu, J. J.

作者： Xu, J. J.;Tang, X. P.;Wang, B.;Li, X. W.;Bai, H. D.;Xu, J.;Liu, D. C.;Bai, L. Y.;Li, Z. R.;Tang, X. P.;Wang, B.;Li, X. W.

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关键词： Allelopathic effects; barnyard grass; chemical compounds; defence enzymes activity; ethanol extract; GC-MS; germination; Humulus scandens; scandent hop; seed germination; seedling growth

期刊名称：ALLELOPATHY JOURNAL （ 影响因子：0.962； 五年影响因子：0.99 ）

ISSN： 0971-4693

年卷期： 2020 年 49 卷 2 期

页码：

收录情况： SCI

摘要： To find the allelopathic herbicidal plants, the herbicidal activity of ethanol extract from scandent hop was evaluated on the seed germination, seedling growth and defence enzymes activities of barnyard grass. The scandent hop inhibited the germination and seedling growth of barnyard grass and followed the order: root extract > leaf extract >complete shoot extracts > stem extracts. Seed germination and seedlings growth decreased with increase in concentrations from 0.02g/mL to 0.6g/mL. The GC-MS analysis detected 10-major compounds (acetol, pyran, myristaldehyde, vinyl propionate, ethyl ester, oleic acid, phytol, methyl ester) in H. scandens. The inhibitory activity of compounds followed the order : methyl linoleate > ethyl linoleate > phytol. The leaves extract at lower concentrations (0.02, 0.1g/mL) increased the activities of catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) but were decreased at higher concentrations(0.6g/mL). Thus scandens hop extracts were inhibitory to the seeds germination, seedling development and antioxidant enzymes activities in barnyard grass.

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