目的研究不同施磷水平下接种AM真菌摩西球囊霉Glomusmosseae、苏格兰球囊霉G.caledonium和两者的混合菌剂对柴胡Bupleurumchinense生长的影响。方法采用盆栽试验与室内分析相结合的方法。结果接种AM真菌提高了柴胡根系菌根侵染率,增加了植株磷的量和根干质量;叶片叶绿素、类胡萝卜素和可溶性糖的量明显高于对照株,而接种混合菌种的柴胡根可溶性糖的量低于对照株;AM真菌接种效应因菌种和施磷量不同而变化,施磷量为0.1~0.3g/kg时接种效果最好。结论接种AM真菌有利于柴胡生长,提高磷肥利用率。

Objective The effects of AM fungi on the growth of Bupleurum chinense were investigated by inoculation Glomus mosseae, G. caledonium, and the two fungal mixture under different phosphorus levels. Methods Pot culture and experimental analyses were carried out. Results Mycorrhizal infection rate could be promoted by inoculation and increased phosphorus content of plant and root dry weight; the content of chlorophyll, carotenoids, and soluble sugar of leaf was higher than that of controlled plant, and the soluble sugar content of plant root by inoculation the two fungal mixtures were lower than that of controlled plant. The inoculation effect of AM fungi was closed related to AM fungal species and phosphorus applied levels, which was the best under 0.1—0.3 g/kg P₂O₅ soil. Conclusion The growth of host plant and using rate of phosphorus fertilizer can be promoted by inoculation of AM fungi.

国家自然科学基金项目(40471637)；河北大学自然科学基金重点项目(Z200405)