Ammopiptanthus mongolicus is the only evergreen broad-leaved shrub in Central Asian desert, which is a state protection of rare and endangered legume, with excellent resistance and landscape effect, it is a great development value of rare plants. In this study, the artificial breeding of the seedlings and the cultivation in Tianjin has made some preliminary laboratory and field studies, some indexes in physiological and biochemical changes were determined under the low temperature stress, the preliminary vi...