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National Chung Hsing University Institutional Repository - NCHUIR > 農業暨自然資源學院 > 農藝學系 > 依資料類型分類 > 期刊論文 >  Allelopathic effects of bracken fern (Pteridium aquilinum L. Kuhn) in Taiwan

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/125969

標題: Allelopathic effects of bracken fern (Pteridium aquilinum L. Kuhn) in Taiwan
作者: H.H.Wang;B.J.Chen;L.M.Hsu;Y.M.Cheng;Y.J.Liou;C.Y.Wang
Contributors: 國立中興大學農藝學系
National Chung Hsing University,Department of Agronomy
Miao-zhen Luo
關鍵字: Allelopathy;bioassay;bracken fern;fronds;mitotic activity;Pteridium;aquilinum;season;weed flora;ptaquiloside;soil
日期: 2011-1
Issue Date: 2012-10-19 14:25:18 (UTC+8)
摘要: Field surveys in summer and winter seasons showed that both the plant population and cover (%) of weed plants in fern-growing areas were lower than in areas without fern (Pteridium aquilinum L. Kuhn), showing the allelopathic effects of this fern. Hence, its allelopathic effects were studied. In bioassays, the water extracts of fern fronds and rhizomes, especially the fronds, showed persistent and higher allelopathic effects (inhibition of seed germination, hypocotyl and radicle elongation) in many vegetables, than water extracts of litter and soils around the fern plant. This phenomenon was observed throughout one year and may partly explain the long-term allelopathic effects of this fern In situ. The water-soluble allelochemicals significantly inhibited the mitosis of radicle tip cells in radish. These allelochemicals at low rates (6%, w/v), kept high proportion of cells under division in prophase, while at the highest rate (25%) tested, the cell division was completely maintained at prophase. The allelopathic effect of water extract of bracken fern was confirmed and an interruption in plant cell cycle might be involved in the mechanism of action.
Relation: Allelopathy Journal, Volume 27, Issue 1, Page(s) 97-110.
Appears in Collections:[依資料類型分類] 期刊論文

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