Position: Home > Articles > Influence of Flooding on Effects of Mixed Inoculation with VA-and Ectomycorrhizal Fungi of Populus tomentosa
Journal of Northwest Forestry University
1997
(4)
水涝对毛白杨VA菌根与外生菌根混合接种效果的影响
作 者：
赵忠;王真辉;刘西平
单 位：
西北林学院林学系;西北林学院基础课部
关键词：
水涝；毛白杨；菌根；混合接种
摘 要：
在田间条件下布置了毛白杨ＶＡ菌根与外生菌根混合接种抗涝性试验。结果表明，在毛白杨菌根接种后若发生较长时间的水涝会严重抑制硬皮马勃、缩球囊霉菌单独及混合接种生长效应的发生，地球囊霉菌接种甚至会抑制毛白杨苗木的高生长。其原因是接种苗叶片的生长发育因水涝而受阻，使得苗木的光合产物积累能力急剧下降；水涝对毛白杨菌根接种苗的光合及蒸腾特性的影响不大，它们的日变化与在正常情况下的日变化表现出完全类似的规律。外生菌根与ＶＡ菌根关系对毛白杨菌根接种苗光合作用的影响依然存在；毛白杨苗木根系上硬皮马勃的感染率与ＶＡ菌根的感染率之间仍存在较明显的负交互作用关系；另外，水涝还能严重地抑制土壤中地球囊霉菌和缩球囊霉菌的繁殖。地球囊霉菌比缩球囊霉菌的抗水涝的能力要强的多。
译 名：
Influence of Flooding on Effects of Mixed Inoculation with VA-and Ectomycorrhizal Fungi of Populus tomentosa
作 者：
Zhao Zhong1) Wang Zhenghui1) Liu Xiping2)(1)Dept. of Forestry,NWFC, Yangling ,Shaanxi 712100; 2)Dept. of Basic Courses, NWFC)
关键词：
flooding; Populus tomentosa; mycorrhiza; mixed inoculation
摘 要：
An experiment of flood tolerance or mixed inoculation with VA-and ectomycorrhizal fungi of Populus tomentosa was carried out under field condition. The results showed that effect of single of mixed inoculation with Sclerodema sp. and Glomus geosporum of G. constrictum on height growth of the host plant was strongly restrained when flooding long occurred soon after mycorrhizal inoculation. In this case, it had even a negative effect on height growth of the host plant inoculating with G. geosporum. The cause was that foliage growth of the host plant was restrained by the long flooding, so that accumulative ability of photosynthate of the host plant was weakened. Flooding had no great influence on photosynthesis and transpiration of the host plant inoculated with the mycorrhizal fungi, which had a same pattern of daily variation as it under normal condition. The negative interactions among VA-and ecto-mycorrhizae was still reflected in the photosynthesis of the host plant. In addition flooding had also a great influence on reproduction of G. geosporum and G. constrictum in soil.G.geosporum showed greater flood tolerance than it of G.constrictum.
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