In order to study the effects of seed priming of Echinacea purpurea (L.) Moench with Kinetin on germination indices under drought stress, factorial experiment based on completely randomized design with two factors including different concentrations of Kinetin (0, 10 and 20 ppm) and different levels of drought (0, -6 and -12 bar) at three replicate was conducted. The variance analysis showed that drought stress significant (p<0.01) effect on the all indices and kinetin has significant effect on seed vigor, mean time generation, seedling length and the seedling dry weight at P<0.01 and on germination percentage at P<0.05. The interaction between kinetin and drought stress levels has significant effect on mean time germination and seedling length at P<0.01 and on germination rate and seed vigor at P<0.05 but has not significant effect on germination percentage and seedling dry weight. According to result, kinetin at 20 ppm has been shown to improve germination indices at drought stress conditions.
