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PGPB对红树植物木榄幼苗的接种效应

, PP. 109-113

Keywords: 解磷菌,固氮菌,木榄幼苗,接种,促生

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Abstract:

通过盆栽试验研究了植物促生菌(PGPB)对红树植物木榄幼苗的接种效应,供试菌为6种解磷菌(即B.amy, Vib,B.atr,Xan,B.Lic,P.M.)和5种固氮菌(即Au4,Phy,24S,JA4,cd),结果表明:(1)分别接种6种解磷菌株6个月后木榄幼苗的生长均得到了不同程度的促进,与对照相比,木榄苗高增加21.57%-9.54%,生物量增加27.49% -20.32%,叶片的氮含量增加33.33%-1.35%,叶片的磷含量增加24.42%-2.04%;经差异显著性检验,B.amy 和Vib 2个菌种对木榄幼苗的促生效应比其它解磷菌株更明显;(2)分别接种5种固氮菌株6个月后木榄幼苗的生长均得到了促进,与对照相比,木榄幼苗的均高增加24.07%-10.22%,生物量增加32.36%-19.71%,叶片的氮含量增加23.39%-4.05%,叶片的磷含量增加32.79%-4.99%;差异显著性检验表明:Au4和Phy 2个菌种对木榄幼苗的促生效果比其它固氮菌更显著。

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