[1]钟雯瑾,马永清,安雨.不同株系柳枝稷地上部的化感作用研究[J].北方园艺,2014,38(18):78-84.
　ZHONG Wen-jin,MA Yong-qing,AN Yu.Study on Effect of Allelopathic Different Lines Switchgrass Shoots[J].Northern Horticulture,2014,38(18):78-84.
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不同株系柳枝稷地上部的化感作用研究

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第38卷 期数: 2014年18期 页码: 78-84 栏目: 出版日期: 2014-09-30
Title:
Study on Effect of Allelopathic Different Lines Switchgrass Shoots
文章编号:
1001-0009（2014）18-0078-07
作者:
钟雯瑾1; 马永清1; 2; 安雨1
1.西北农林科技大学 资源环境学院，陕西 杨凌 712100；
2.西北农林科技大学 水土保持研究所，陕西 杨凌 712100
Author(s):
ZHONG Wen-jin1; MA Yong-qing 1; 2; AN Yu1
1.College of Resources and Environment，Northwest Agriculture and Forestry University，Yangling，Shaanxi 712100;
2.Institute of Soil and Water Conservation，Northwest Agriculture and Forestry University，Yangling，Shaanxi 712100
关键词:
柳枝稷; 生菜; 浸提液; 化感作用
Keywords:
switchgrass; lettuce; distilled water extracts; allelopathy
分类号:
Q 143+.1
文献标志码:
A
摘要:
以10个株系（一前1、一前2、一前3、一前4、一前5、一前6、一前8、一前11、一前12和一前13）和2个美国引进品种（Cave-in-Rock和Nebraska 28）为试验材料，采用室内皿培培养法，分析不同柳枝稷株系地上部蒸馏水浸提液对生菜种子萌发和幼苗生长的影响，以评〖JP2〗价不同株系柳枝稷化感潜势。结果表明：不同材料的柳枝稷化感潜势表现出显著的差异性，Cave-in-Rock的化感潜势高于Nebraska 28，且10个株系之间化感潜势也不尽相同；化感作用存在浓度效应，0.02 g/mL浸提液的化感抑制作用高于0.005 g/mL；柳枝稷地上部浸提液对生菜胚根生长抑制作用明显，抑制率（RI）最高为60%；而对胚芽生长表现促进作用，促进率（RI）最高达到48.1%。一前5、一前13和Cave-in-Rock的抑制作用较强，与对照相比差异达到显著水平；聚类分析结果表明，可将供试柳枝稷分为三大类：抑制作用较强的是一前13和一前5为一类，一前12、一前11、一前8、一前6和一前4为第二类，抑制作用较弱的一前3、一前2和一前1为第三类。
Abstract:
Taking 10 lines switchgrass(YQ1,YQ2，YQ3，YQ4，YQ5，YQ6，YQ8，YQ11，YQ12，YQ13) and 2 USA varieties(Cave-in-Rock and Nebraska 28) as materials，using the dish culture method,Allelopathic potential was evaluated according to the effect of the aqueous extracts through the analysis of the shoots of 10 lines switchgrass on lettuce (Lactuca sativa L.) seed germination and seedling growth.The reaults showed that the allelopathic potential in differentlines or cultivars was different.Cave-in-Rock displayed stronger allelopathic potential than Nebraska 28.The allelopathic effect of lines switchgrass declined with extracts diluted.The aqueous extracts from the switchgrass shoots had a strong allelopathic inhibition on radicle growth with the maximum inhibiting rate (RI) of 60%.In contrast，aqueous extracts from the switchgrass shoots generally promoted coleoptile growth，and the maximum promoting rate (RI) was 48.1%.YQ5，YQ13，Cave-in-Rock displayed strong allelopathic potential,and compared with control the differences were significant.Cluster analysis showed that lines or cultivars of switchgrass on-test can be divided into 3 classes:YQ13 and YQ5 had the highest allelopathic potential among the switchgrass cultivars;YQ12，YQ11，YQ8，YQ6 and YQ4 with the medium allelopathic potential;YQ3，YQ2 and YQ1 with the weakest allelopathy.

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备注/Memo

第一作者简介：钟雯瑾（1990-），女，河南开封人，硕士研究生，研究方向为植物营养与生态学。E-mail:zhongwenjin728@163.com.
责任作者：马永清（1963-），男，教授，博士生导师，现主要从事化学生态学及植物化感作用和寄生植物生理生态等研究工作。E-mail:mayongqing@ms.iswc.ac.cn.
 基金项目：国家“十二五”农村领域国家科技计划资助项目（2011BAD31B05）。
收稿日期：2014-05-27

更新日期/Last Update: 2014-11-27