Abstract:The responses of seed germination of 3 kinds of seeds on acid rain stress, in which rice (Oryza.sativa), wheat (Triticum. aestivum) and rape (Brassica chinensis var. oleifera) seeds were used as experimental materials, were investigated. The purpose was to understand the effects of acid rain on seed germination of various acid-fast plants in acidic deposition area and to determine the reasons of the reasons of growth and decline dynamics of crop population and its yield change. Six simulated acid rain (SAR)...