根瘤菌、菌根菌对厚荚相思苗期生长的影响

Effect on the Growth of Acacia crassicarpa by Dual-inoculation with both ECM and Rhizobia

对厚荚相思苗期进行接种根瘤菌、菌根菌、根瘤菌+菌根菌的比较试验,结果表明:接种菌根菌的促生效果显著,幼苗高生长、地上部分干重、地下部分干重、根瘤个数、根瘤重量平均数比对照分别提高了53.36%,73.30%,89.69%,224.01%和186.96%。接种各菌种对幼苗的促生效果排序为:菌根菌+根瘤菌>根瘤菌>菌根菌>对照。苗木根部菌根菌感染强度排序为:菌根菌>菌根菌+根瘤菌>对照。

The effects on the growth of Acacia crassicarpa seedlings by dual-inoculation with ECM and rhizobia were reported. The results showed significant difference in growth and biomass between different treatments seedlings（P = 0. 05 or P = 0. O1 ）. 3 months after inoculation, the seedlings average height, dry weight above ground, dry weight under ground, nodules number and nodule dry weight increased 53.36% ,73.30% ,89.69% 224.01% and 186.96% respectively. The effectiveness of different inoculation treatments on the growth of Acacia crassicarpa seedlings were dual-inoculation 〉 rhizobia 〉 ECM 〉 control （ non-inoculation ）. The infection rate of ECM of different inoculation treatments were ECM 〉 dual-inoculation 〉 rhizobia 〉 control （non-inoculation）.