| 紫茎泽兰对三叶鬼针草的化感作用研究 |
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| 引用本文： | 王有兵,王亚婷,段安安,严毅,何银忠,杨维雄,周庆宏.紫茎泽兰对三叶鬼针草的化感作用研究[J].中国农学通报,2014,30(22):282-286. |
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| 作者姓名： | 王有兵 王亚婷 段安安 严毅 何银忠 杨维雄 周庆宏 |
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| 作者单位： | 1. 昆明市海口林场2. 海口林场3. 西南林业大学 |
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| 基金项目： | 昆明市科技局 “昆明市磷矿采矿迹地覆土植被恢复技术研究项目” (08S080004)。 |
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| 摘 要： | 为了探索紫茎泽兰对三叶鬼针草的化感作用，研究了紫茎泽兰叶片水浸液和枯落物对三叶鬼针草种子萌发及幼苗生长的影响。结果表明，紫茎泽兰叶片水浸液对三叶鬼针草种子萌发有一定的抑制作用，随着浓度的增加，种子发芽率逐渐降低，3%浓度时，种子已不能萌发，对胚根的抑制作用强于胚芽，对幼苗的生长有微弱的促进作用；枯落物水浸液对种子的萌发抑制作用弱于叶片水浸液，随着枯落物添加量的增加，三叶鬼针草长势越好，能够促进植株体内物质的积累。说明三叶鬼针草能够在紫茎泽兰入侵地上生长良好，可以采用三叶鬼针草代替紫茎泽兰，为紫茎泽兰的防控发挥作用。
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| 关 键 词： | 化感作用 |
| 收稿时间： | 2014/2/10 0:00:00 |
| 修稿时间： | 2014/2/27 0:00:00 |
Study on the Allelopathy Effect of Eupatorium adenophorum (Spreng.) on the Bidens pilosa L. |
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| Abstract: | The effects of water extract of Eupatorium adenophorum (Spreng.) leaf and leaf litter on the germination and seedling growth of Bidens pilosa L. were experimented to explore allelopathic effects of water extract of Eupatorium adenophorum (Spreng.) leaf and leaf litter on the Bidens pilosa L.. Results showed that the water extract of Eupatorium adenophorum (Spreng.) leaf had certain inhibitory effect on seed germination of Bidens pilosa L., with the increase of concentration, the seed germination rate decreased gradually, when the concentration was 3%, the seeds could not germinate, inhibitory effect on the radicle superior to the germ, and showed weak promotion effect on the growth of the seedlings; the effects of extract of litter on seed germination inhibition was weaker than the leaf water extracts, with the increase in litter amount, Bidens pilosa L. grew better, could promote the accumulation of material in the plant. The Bidens pilosa L. could grow well on the ground that by Eupatorium adenophorum (Spreng.), so people could use Bidens pilosa L. instead of Eupatorium adenophorum (Spreng.), play a role in the prevention and control of Eupatorium adenophorum (Spreng.). |
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| Keywords: | allelopathy effect |
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