Volume 29 Issue 5
Sep.  2012
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WANG Yuan, MIAO Li-hua, GAO Yan, JI Meng-cheng. Allelopathic effects from aqueous extracts of exotic Thalia dealbata on six aquatic plant species[J]. Journal of Zhejiang A&F University, 2012, 29(5): 722-728. doi: 10.11833/j.issn.2095-0756.2012.05.014
Citation: WANG Yuan, MIAO Li-hua, GAO Yan, JI Meng-cheng. Allelopathic effects from aqueous extracts of exotic Thalia dealbata on six aquatic plant species[J]. Journal of Zhejiang A&F University, 2012, 29(5): 722-728. doi: 10.11833/j.issn.2095-0756.2012.05.014

Allelopathic effects from aqueous extracts of exotic Thalia dealbata on six aquatic plant species

doi: 10.11833/j.issn.2095-0756.2012.05.014
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  • Corresponding author: JI Meng-cheng
  • Received Date: 2011-11-09
  • Rev Recd Date: 2012-03-19
  • Publish Date: 2012-10-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Allelopathic effects from aqueous extracts of exotic Thalia dealbata on six aquatic plant species

doi: 10.11833/j.issn.2095-0756.2012.05.014
    Corresponding author: JI Meng-cheng

Abstract: To test the allelopathic effects of Thalia dealbata on seed germination and seedling growth,aqueous extracts of the T. dealbata rhizome and root were applied to six aquatic plants;namely,Nymphoides peltatum,Vallisneria natans,Nasturtium officinale,Iris pseudacorus,Phragmites australis,and Polygonum hydropiper using the bioassay method. Results showed that the aquatic rhizome and root extracts at a concentration of 50 gL-1 had highly significant (P < 0.01) allelopathic effects on seed germination for all six aquatic plant species. Seedling shoot length for the six listed species above were reduced 29.2%,64.9%,42.3%,87.1%,18.2%,and 75.6%,respectively;and seedling root length was reduced 50.5%,90.1%,72.7%,76.2%,29.9%,and 74.2%,in that order. Also the seed germination index was more sensitive to extract application than germination percentage and other indexes with allelopathic sensitivity in the order of Polygonum hydropiper > Nasturtium officinale > V. natans > I. pseudacorus > Nymphoides peltata > Phragmites australis.[Ch,3 fig. 1 tab. 26 ref.]

WANG Yuan, MIAO Li-hua, GAO Yan, JI Meng-cheng. Allelopathic effects from aqueous extracts of exotic Thalia dealbata on six aquatic plant species[J]. Journal of Zhejiang A&F University, 2012, 29(5): 722-728. doi: 10.11833/j.issn.2095-0756.2012.05.014
Citation: WANG Yuan, MIAO Li-hua, GAO Yan, JI Meng-cheng. Allelopathic effects from aqueous extracts of exotic Thalia dealbata on six aquatic plant species[J]. Journal of Zhejiang A&F University, 2012, 29(5): 722-728. doi: 10.11833/j.issn.2095-0756.2012.05.014

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