Method for ultralow-temperature preservation of flemingia macrophylla seeds and improvement of germination rate

The invention discloses an ultralow-temperature storage method of moghania macrophylla seeds, which comprises the following steps: 1) under a dark condition, drying the moghania macrophylla seeds by using a silica gel desiccant until the water content is 5.5-9.5%; and 2) soaking the dried seeds in a loading liquid, taking out the seeds, soaking the seeds in a vitrification reagent, taking out the seeds after soaking is finished, adding a pre-cooled vitrification protection reagent, and transferring the seeds into liquid nitrogen for ultralow-temperature preservation. According to the method, a technical program for ultralow-temperature preservation of flemingia macrophylla germplasm resources is established, the blank in the technical field of ultralow-temperature preservation of flemingia macrophylla seeds is filled up, the preservation time of the seeds can be prolonged through the ultralow-temperature preservation technology, and it is guaranteed that the seeds keep high vitality. 本发明公开了一种大叶千斤拔种子超低温保存方法，包括