Seed deterioration is an irreversible process. However, techniques such as

priming have been used after storage, in order to mitigate the harmful effects of aging. This

study aimed to evaluate the physiological performance of A. urundeuva diaspores when

stored and, subsequently, subjected to priming and drying, thus testing the hypothesis that

hydropriming would mitigate deterioration. A completely randomized design was adopted,

in a triple factorial scheme 2x4x4, considering two environments (laboratory and refrigerated

chamber), four storage times (0, 45, 90, and 180 days), and four hydration times (0 h/dry

diaspores, 5 h, 14 h 30 min, and 23 h 30 min). Emergence, speed index, and the number of

days to 50% emergence were assessed, as well as length and dry mass of both shoot and

root systems. The storage of A. urundeuva diaspores for 180 days leads to a reduction in

their physiological performance, regardless of the environment. The hydropriming times are

not effective in attenuating the harmful effects of deterioration. Nevertheless, hydropriming

for 23 h 30 min provides a faster seedling establishment.