摩西球囊霉对芦笋幼苗生长和矿质营养吸收的影响

摩西球囊霉（Glomus mosseae，GM）是球囊霉属丛枝菌根真菌（Arbuscular Mycorrhiza Fungi，AMF），具有对环境适应力强、应用范围广的特点。为探明摩西球囊霉对芦笋育苗的应用效果，采用营养钵育苗播种对芦笋进行GM接种处理，研究GM对芦笋幼苗生长、菌根侵染及矿质营养吸收的影响。结果表明：接种GM后芦笋幼苗生物量显著提高，植株根系具有较高的菌根依赖性。GM对芦笋幼苗根系的侵染呈现“S”形变化趋势，播种10周后，GM对芦笋幼苗根系达到较高程度的侵染，且GM菌根苗的根系活力和叶绿素含量与不接种对照相比显著提高。接种GM显著促进了植株对矿质元素特别是P的吸收，其次为Mg。接种GM培育菌根苗的技术应用于芦笋栽培可以培育壮苗，缩短苗期，节省肥料，提高养分利用率。

Effects of Glomus mosseae on Asparagus Seedling Growth and Mineral Nutrients Absorption

Glomus mosseae(GM)is a fungi strain of Arbuscular Mycorrhiza Fungus in genus Glomus of high adaptability to environment with extensive application range.To determine the effects of Glomus mosseae on asparagus(Asparagus officinalis L.)seedling,seedling breeding experiments were conducted in solar greenhouse with inoculation of GM to asparagus seeds during sowing.The influences of two GM strains GM1 and GM2 inoculation on asparagus seedling growth,mineral nutrients absorption and roots mycorrhizal colonization were studied.The results showed that GM inoculation greatly increased the biomass of asparagus seedlings.The mycorrhizal dependency of asparagus roots was high and the mycorrhizal colonization ratio of asparagus root exhibited change tendency of"S"curve.Plants roots inoculated with GM were highly colonized 10 weeks after sowing which significantly increased the root activity and chlorophyll concentration in leaves.GM inoculation promoted the plants to assimilate more mineral nutrients such as P and Mg.So,in asparagus cultivation,GM inoculation is an important technique to cultivate vigorous seedlings,shorten seedling stage,save mineral nutrients and raise nutrient utilization ratio.