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AM真菌和根结线虫互作对黄瓜生长及生理特征的影响

, PP. 253-259

Keywords: 黄瓜,AM真菌,根结线虫,生长,生理特征

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Abstract:

通过盆栽试验研究了丛枝菌根真菌Arbuscularmycorrhiza(AM)和南方根结线虫Meloidogyneincognita互作对黄瓜幼苗生长及生理特征的影响。结果表明,预先接种地表球囊霉Glomusversiforme再接种线虫处理的鲜、干重较只接种线虫的处理显著增加;预先接种AM真菌再接种线虫处理的根结线虫病情指数、AM真菌侵染率较只接种线虫的处理明显降低;接种线虫使黄瓜植株的过氧化物酶(POD)、过氧化氢酶(CAT)及苯丙氨酸解氨酶(PAL)、总酚含量有不同程度提高,其中预先接种根内球囊霉G.intraradices对黄瓜植株起到了较好的保护作用;与对照相比,只接种线虫处理的叶片磷含量降低了25.26%,预先接种AM真菌再接种线虫处理的叶片磷含量较只接种根结线虫的含量高。

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