韭菜水提液对3种蔬菜种子的化感作用

JIANG Guibo, CHEN Shaoxiong, JIANG Xiaoling, YANG Yinjiao, Nieyaolong, CAI Yuling

Guizhou Agricultural Sciences(2014)

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Abstract
为解决生产实践中的连作障碍问题,以韭菜(Allium tuberosum Rottler.ex Spreng.)为供体,以其地上部分的水提液为化感物质,分别以白菜(Brassica chinensis L.)、油菜(Brassica campestris L.)和萝卜(Raphanus sativus L.)种子为受体,采用培养皿滤纸法进行化感试验,测定韭菜的茎叶水提液对油菜、白菜和萝卜幼苗的根长、苗高和鲜重的影响。结果表明:韭菜的地上部分的水提液对油菜、白菜和萝卜种子的萌发及其幼苗生长有明显的化感作用,且不同浓度水提液对蔬菜幼苗生长的影响存在差异,浓度为0.50 g/mL时抑制作用最强。
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Key words
Allium tuberosum,allelopathy,water extract,vegetable seeds
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