瑞香狼毒化感物质释放的时间和空间变化规律研究

Jin Hui,Cheng Jinan, Cheng Jinchun, Yang Xiaoyan, Guan Jinfeng, Qin Bo

wf(2022)

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Abstract
本文通过确立高效液相色谱检测方法对瑞香狼毒根际土壤及根中化感物质含量进行测定.结果显示:瑞香狼毒根际土壤检测出5种化感物质,根中共检测到7种化感物质.瑞香狼毒根际土壤和根中化感物质含量随生长季节呈现下降的变化趋势,化感物质含量在展叶期和盛花期高于结实期和休眠期.另外,瑞香狼毒化感物质的释放随着种群盖度的增加而增加,但当盖度达到52.6%后,化感物质的释放呈下降趋势.本文对于控制瑞香狼毒种群蔓延,治理瑞香狼毒引起的草地退化问题具有重要意义.
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