Volume 28 Issue 1
Feb.  2011
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DU Ming-li, GAO Yan, ZHANG Ru-min, GAO Qun-ying, FU Hang-fei. Allelopathic effects from aqueous extracts of exotic Coreopsis grandiflora on seed germination of six native ornamental plant species[J]. Journal of Zhejiang A&F University, 2011, 28(1): 109-114. doi: 10.11833/j.issn.2095-0756.2011.01.017
Citation: DU Ming-li, GAO Yan, ZHANG Ru-min, GAO Qun-ying, FU Hang-fei. Allelopathic effects from aqueous extracts of exotic Coreopsis grandiflora on seed germination of six native ornamental plant species[J]. Journal of Zhejiang A&F University, 2011, 28(1): 109-114. doi: 10.11833/j.issn.2095-0756.2011.01.017

Allelopathic effects from aqueous extracts of exotic Coreopsis grandiflora on seed germination of six native ornamental plant species

doi: 10.11833/j.issn.2095-0756.2011.01.017
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  • Corresponding author: GAO Yan
  • Publish Date: 2011-02-20
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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 Coreopsis grandiflora on seed germination of six native ornamental plant species

doi: 10.11833/j.issn.2095-0756.2011.01.017
    Corresponding author: GAO Yan

Abstract: In order to make clear the allelopathic effects of the exotic Coreopsis grandiflora on the native plant species,we studied the effects from aqueous leaf and root extracts of C. grandiflora on the seed germination of Cynodon dactylon,Agrostis spp.,Zoysia japonica,Orychophragmus violaceus,Dianthus chinensis,and Celosia cristata using the bioassay. Results showed that the aquatic leaf extract of C. grandiflora had significant allelopathic effects on seed germination of the six plant species,with the effects varying with the concentration of the extract. Foliar extracts at a concentration of 50.0 gL-1 were found to be inhibitory(P<0.01) to seed germination for C. dactylon,Agrostis spp.,Z. japonica and O. violaceus,with inhibition rates of 39.33%,56.0%,53.33%,and 46.22%,respectively,compared with the control. In addition,the seed germination index was more sensitive to extract application than the germination percent,with allelopathic sensitivity in the order of Z. japonica>Agrostis spp. and O. violaceus>C. dactylon>D. chinensis>C. cristata. Results suggested that for the exotic C. grandiflora allelopathy may play an important role when competing with native plants.[Ch,2 fig. 2 tab. 25 ref.]

DU Ming-li, GAO Yan, ZHANG Ru-min, GAO Qun-ying, FU Hang-fei. Allelopathic effects from aqueous extracts of exotic Coreopsis grandiflora on seed germination of six native ornamental plant species[J]. Journal of Zhejiang A&F University, 2011, 28(1): 109-114. doi: 10.11833/j.issn.2095-0756.2011.01.017
Citation: DU Ming-li, GAO Yan, ZHANG Ru-min, GAO Qun-ying, FU Hang-fei. Allelopathic effects from aqueous extracts of exotic Coreopsis grandiflora on seed germination of six native ornamental plant species[J]. Journal of Zhejiang A&F University, 2011, 28(1): 109-114. doi: 10.11833/j.issn.2095-0756.2011.01.017

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