Compared with control (CK), GE, GR and their
relative values of salt stressed rice significantly decreased.
While, presoaking with exogenous proline
significantly alleviated the inhibition effects of
salt stress on seed germination of rice c.v. Dongnong
425. In addition, exogenous proline also showed
concentration effects on GE and RGE of salt stressed
rice. With an increase of proline concentration, GE
and relative germination energy (RGE) of rice under
salt stress were significantly improved, but GR and
relative germination rate (RGR) had no obvious
changes among the concentrations of 15-45 mmol • L-1.
Moreover, germination states under salt stress and
45 mmol • L-1 proline treatment were similar as control
(Table 1). The results indicated that presoaking with
proline facilitated germination of salt-stressed rice