The effectiveness of the isolates was related to ecological attributes such as the number of propagules formed in the soil . differences in effectiveness of am fungi in promoting plant growth and nutrient uptake were also observed among genera , with higher effectiveness in clomus followed by acaulospora and scutellospora 并发现am真菌的生态学特性与其效应有关，不同属am真菌的侵染率、根外繁殖体数量及对甘薯的效应均有差异，多数glomus属真菌的繁殖体数量和菌根效应明显优于acaulospora属和scutellospora属真菌。
After 1 year , the survival rates of seedlings planted in k . candel forest , avicennia marina forest and at bare tidal flat were 54 . 7 % , 13 . 7 % and 76 . 0 % , respectively . insect and crab feeding were the main cause of lower survivorship of k . candel seedlings under a . marina forest . among the surviving k . candel seedlings , seedlings at bare tidal flat grew much better in terms of height , diameter , leaf production and biomass than did under the a . marina forest and k . candel forest 高盐( 30 % 0一50 % 0 )影响桐花树幼苗的萌发; o一30 % 0盐度下桐花树幼苗的净光合速率、蒸腾速率和气孔导度都表现为低盐促进，高盐抑制的变化趋势;无盐条件下幼苗的净光合速率明显低于5 ~加% 0盐度:桐花树胎生繁殖体脱离母树后，在随后的生长发育过程中表现为吸收累积盐分的过程。
