| 紫茎泽兰不同处理方法水提液对云南松幼苗生长的化感作用 |
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| 引用本文： | 曹子林,王晓丽,杨桂英.紫茎泽兰不同处理方法水提液对云南松幼苗生长的化感作用[J].种子,2012,31(2):34-38. |
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| 作者姓名： | 曹子林 王晓丽 杨桂英 |
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| 作者单位： | 1. 西南林业大学环境科学与工程学院,云南昆明,650224
2. 西南林业大学林学院,云南昆明,650224 |
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| 基金项目： | 西南林业大学生态学校级重点建设学科项目(项目编号:XKX 200902);西南林业大学面上基金(项目编号:200726 M)共同资助 |
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| 摘 要： | 为了解样品处理方法对化感作用大小的影响,用紫茎泽兰地上部分的完整鲜样、剪碎鲜样及杀酶烘干样3种不同处理方法的水提液对云南松种子进行处理,观察对种子发芽后幼苗生长的影响。结果表明,不同处理方法水提液对云南松幼苗生长的化感作用不同。总体上看,浓度为0.04 g/mL时,不同处理方法水提液对云南松幼苗生长都具有极显著或显著的抑制作用,杀酶烘干样、剪碎鲜样水提液的抑制效应明显大于完整鲜样水提液,完整鲜样与杀酶烘干样、剪碎鲜样之间差异达到极显著或显著水平;随着浓度的降低,不同处理方法水提液对云南松幼苗生长的抑制作用减弱,甚至转为促进作用,完整鲜样起促进作用的临界浓度较杀酶烘干样、剪碎鲜样的高。化感作用的作用形式及作用大小往往与样品处理方式密切相关,在水提实验中,建议用完整鲜样进行浸提。
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| 关 键 词： | 紫茎泽兰 不同处理方法水提液 云南松 幼苗生长 化感作用 |
Allelopathic Effects of Aqueous Extracts of Eupatorium adenophorum Spreng by Different Treatment Methods on Seedling Growth of Pinus Yunanensis Franch |
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| CAO Zi-lin
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WANG Xiao-li
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YANG Gui-ying.Allelopathic Effects of Aqueous Extracts of Eupatorium adenophorum Spreng by Different Treatment Methods on Seedling Growth of Pinus Yunanensis Franch[J].Seed,2012,31(2):34-38. |
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| Authors: | CAO Zi-lin WANG Xiao-li YANG Gui-ying |
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| Institution: | 1(1.Faculty of Environmental Science and Engineering,Southwest Forestry University, Kunming Yunnan 650224,China; 2.Faculty of Forestry,Southwest Forestry University,Kunming Yunnan 650224,China) |
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| Abstract: | In order to know the influence of sample treatment methods on Allelopathy intensity,Pinus yunnanensis Seeds were treated by aqueous extracts of Eupatorium adenophorum above-ground of EEDS(the sample which eliminated enzyme and dried by heat) and CFS(the crumbled fresh sample) and IFS(the integrity fresh sample),observed the influence on seedling growth after seed germination.The result showed that the allelopathic effects of the extracts of E.adenophorum of different treatments on seedling growth of Pinus yunnanensis were different.On the whole,at the concentration of 0.04 g/mL,the aqueous extract of different treatments had a significant inhibitory effect on seedling growth of P.yunnanensis,inhibitory effects of EEDS and CFS were stronger than IFS’s,the mean differences between IFS and CFS were significant at the 0.01 level.The mean differences between IFS and EEDS were also significant at the 0.01 level.The inhibitory effects of different treatments got weaker with the concentration decreasing,and even turned into a stimulating effect,the critical concentration of IFS which stimulated seedling growth was higher than that of EEDS and CFS,The function form and degree of allelopathy were bound up with sample treatment means,so,the integrity fresh sample was the first choose when extracting allelopathic chemicals. |
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| Keywords: | Eupatorium adenophorum spreng aqueous extracts of different treatment methods seedling growth Pinus yunnanensis franch allelopathy |
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