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中文摘要：
利用石灰岩适生植物构树进行菌根真菌摩西球囊霉（GM）、地表球囊霉（GV）和透光球囊霉（GD）的单独接种（SI）、混合接种（CI）和不接种（N）处理试验,测定了构树幼苗生长3个月后的形态及生长指标.结果表明：接种VA真菌促进了宿主构树的生长,单株地上部分、地下部分生物量和全株生物量等生长指标均较对照组显著提高,4种处理下构树幼苗生物量较对照提高了2.49～8.19倍,其中CI处理生物量最大,而单株叶片数目与对照组没有显著差异.不同接种处理的构树幼苗生长响应不同.在SI处理中,GD对构树幼苗生长效应最大,而CI处理较SI处理对构树幼苗的促进效应更加明显.CI处理中地径、苗高和总叶面积分别是对照组的1.5、2.2和6.0倍.各处理中根冠比最大的为CI（0.446）.说明宿主植物与菌种存在一定的选择性.
英文摘要：
In an experiment with single inoculation （SI） and co-inoculation （CI） of three VA mycorrhizal fungi, i. e. , Glornus mosseea （ GM ） , Glornus versiforme （ GV ） and Glornus diaphanurn （GD） , the growth response of Broussonetia papyrifera seedlings in limestone area was studied. The results showed that after 3 months of growth, the aboveground-, underground-, and total biomass were increased significantly by the inoculation, being 2. 49-8.19 times as much as the control. Treatment CI had the highest biomass, but the leaf number had little difference with the control. In SI, GD inoculation had the greatest effect; and CI was more effective than SI. The ground diameter, height, and total leaf area in CI were 1.5, 2.2, and 6. 0 times as much as those in CK, respectively, and the root/shoot ratio in CI was the highest （0. 446）. There existed an interactive selection between host plants and VA mycorrhizal fungi.
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