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Cu污染土壤接种丛枝菌根真菌对旱稻生长的影响

Keywords: 重金属,Cu,丛枝菌,根真菌旱稻

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Abstract:

采用盆栽实验的方法,研究了不同Cu处理水平(0、100和200mg/kg)下,接种丛枝菌根真菌(arbuscularmycorrhizalfungi,AMF)Glomusmosseae对旱稻(OryzalSativaL.)生长的影响。结果表明,未添加Cu处理下,旱稻菌根侵染率可达69%,随着土壤中Cu添加量增加,旱稻菌根侵染率显著下降(P<0.05)。与未接种处理相比,接种处理显著提高100mg/kgCu处理下根系生物量以及200mg/kgCu处理下地上部分生物量(P<0.05);接种处理显著降低了100mg/kgCu处理下旱稻地下部Cu含量,却显著增加了200mg/kgCu处理下旱稻地上部分以及地下部分Cu含量(P<0.05)。

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