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木麻黄水浸液对其幼苗生长的影响
引用本文:林武星,洪伟,叶功富.木麻黄水浸液对其幼苗生长的影响[J].江西农业大学学报,2005,27(1):46-51.
作者姓名:林武星  洪伟  叶功富
作者单位:1. 福建农林大学,林学院,福建,福州,350002;福建省林业科学研究院,福建,福州,350012
2. 福建农林大学,林学院,福建,福州,350002
3. 福建省林业科学研究院,福建,福州,350012
基金项目:福建省科技资助项目(2003Y028)
摘    要:木麻黄防护林存在更新困难,连栽引起生产力下降的问题。采用木麻黄根、新鲜小枝、枯落枝和表层土壤的水浸液处理其幼苗,研究木麻黄他感作用。结果表明,木麻黄各种水浸液对其幼苗生长均起抑制作用,并且随水浸液浓度增大,抑制作用加强。木麻黄不同器官相同浓度的水浸液对幼苗生长的抑制程度表现为根 >新鲜小枝>枯落枝>表层土壤。说明木麻黄更新困难的一个重要原因是木麻黄分泌他感物质抑制自身生长。

关 键 词:木麻黄  幼苗生长  水浸液  连栽  表层土壤  浓度  防护林  抑制作用  影响  分泌
文章编号:1000-2286(2005)01-0046-06
修稿时间:2004年7月22日

Effects of Water Extract from Casuarina equisetifolia on Its Seedling Growth
LIN Wu-xing,HONG Wei,YE Gong fu.Effects of Water Extract from Casuarina equisetifolia on Its Seedling Growth[J].Acta Agriculturae Universitis Jiangxiensis,2005,27(1):46-51.
Authors:LIN Wu-xing  HONG Wei  YE Gong fu
Institution:LIN Wu-xing~
Abstract:Problems of difficult regeneration and decline of productivity due to continuous plantation exist in Casuarina equisetifolia shelfer-forest. Studies were carried out by using the water extract from Casuarina equisetifolia root, fresh branch, litter branch and surface soil to treat its seedlings. The results showed that the water extract from Casuarina equisetifolia inhibited the growth of the seedlings, and the inhibition strengthened with the increase of the concentration of the extract. The inhibition order of the same concentration extract of different organs was root>fresh branch>litter branch>surface soil. The above indicated that one of the important reasons for difficult regeneration is that Casuarina equisetifolia secretes allelopathic substance to inhibit its growth.
Keywords:Casuarina equisetifolia  water extract  allelopathy$$$$
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