狼毒对披碱草化感作用的研究  

Allelopathy of Stellera chamaejasme on Elymus dahuricus

作　　者：周淑清[1] 王慧[1] 黄祖杰[1] 刘一凌[1] 

机构地区：[1]中国农业科学院草原研究所农业部草地资源与生态重点实验室,内蒙古呼和浩特010010

出　　处：《草原与草坪》2010年第5期63-65,共3页Grassland and Turf

基　　金：中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所)项目"草地狼毒异株克生作用机制机理及其对草地他种植物消长的影响研究(2006-01-10)"资助

摘　　要：研究了狼毒根在土壤里腐解过程中对受体披碱草(Elymus dahuricus)的化感作用。结果表明:加狼毒根的植株生长高度均比对照高,狼毒根对披碱草幼苗的高度、叶面积、根干重均没有显著的抑制作用(P>0.05)。由狼毒根对披碱草的化感敏感指数(RI)分析结果表明,披碱草对狼毒的化感作用反应不敏感,具有较强的耐受性(RI>0)。Allelophopathy of Stellera chamaejasme in the decompose process in soil on acceptors Elymus dahuricus was studied by biological measuring method in Laboratory.The results showed that the effect of Stellera chamaejasme root decomposition was no significant difference on Elymus dahuricus seedling height,leaf area and dry weight（P0.05）,and has little harm to permeability of cell of Elymus dahuricus.Elymus dahuricus showed strong tolerance to allelopathy of Stellera chamaejasme by sensitive index analysis.

关 键 词：狼毒 化感作用 腐解 披碱草 敏感指数 耐受性 

分 类 号：S481[农业科学—农药学]