%0 Journal Article
%A LIU Ni-Ni
%A WU Bing-Qian
%A ZHANG Hong
%A ZHAO Heng
%A ZHOU Ze-Jian
%T Allelopathic Effects of Leaves Extracts on Growth of Three Fast-growing Tree Species on <i>Ardisia gigantifolia</i> Staf Seedlings
%D 2018
%R 10.7525/j.issn.1673-5102.2018.04.011
%J Bulletin of Botanical Research
%P 568-574
%V 38
%N 4
%X It is the key to understand scientifically the compound planting of forest medicine that whether there is gain effect between afforestation tree species and medicinal materials, among which, avoiding of allelopathic inhibition is one important aspect. Allelopathic effects of three fast-growing tree species on <i>Ardisia gigantifolia</i> Stapf were evaluated to discuss if <i>A.gigantifolia</i> was mixed with <i>Eucalyptus urophylla</i> S.T.Blakely, <i>Pinus elliottii</i> or <i>Cunninghamia lanceolata</i>(Lamb.) Hook. Comparing with CK, the plant height of <i>A.giantifolia</i> was significantly lower under the treatments of 40, 60 and 80 g&#183;L<sup>-1</sup>(<i>P</i><0.05), and the root length, dry weight underground and biomass were also strongly inhibited under all the treatments(<i>P</i><0.01); With the increase of the extract concentration, the inhibition of <i>E.urophylla</i> was enhanced. The aqueous extraction of <i>P.elliottii</i> had a positive stimulatory effect on height, root length and dry aboveground weight of <i>A.gigantifolia</i> under treatment of the 20 and 40 g&#183;L<sup>-1</sup>, while the higher concentration had weak or negative effect. Besides, <i>P.elliottii</i> had a stimulatory effect on basal diameter, biomass and dry underground weight of <i>A.gigantifolia</i> under treatment of the lowest content, while the highest content had an inhibitory effect. For <i>C.lanceolata</i> the lowest content had a stimulatory effect, while the highest concentration showed significant inhibition. Taking all parameters into account, Eucalyptus could not be mixed with <i>A.giantifolia</i>, while <i>P.elliottii</i> or <i>C.lanceolata</i> may be an alternative intercropping plant species for <i>A.giantifolia</i>, because the growth of <i>A.giantifolia</i> was inhibited significantly by the allelochemicals released from the decomposing leaf litter of Eucalyptus, and the growth of <i>A.giantifolia</i> was stimulated under the lowest content of aqueous extraction from <i>P.elliottii</i> and <i>C.lanceolata</i>.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2018.04.011