It showed under 600mmol / l nacl the potential activity and efficiency of primary conversion of light energy of psii in shoots of salicornia bigelovii torr . decreased . 5 . the effects of salt - treament on the osmotic adjustment ability of salicornia bigelovii torr . and zea mays the osmotic adjustment ability of the salicornia bigelovii torr 在100 - 300mmol lnacl处理时,毕氏海蓬子的fv fm 、 fv fo升高, 600mmol lnacl处理时毕氏海蓬子的fv fm 、 fv fo降低,表明只有高盐度时才对毕氏海蓬子光能转化机构的完整性及psii的潜在活性造成伤害。