Physiological Variation of Tea Plant under Mercury Stress

Environment pollution from mercury is very serious because of widespread use in many fields, and physiological characteristics change can reflect stress response of plant in many times. In the research various content of mercury added artificial into tea plant soil and then relative physiological traits were detected to discuss differential characteristics of tea plant to mercury stress. The results showed that in different Hg concentration stress chlorophyll content of YK and ZJ were decline, and MDA content of YK, FX and MH also express ascend situation, but their proline content were decline than ones of control. As a word, heavy metal Hg resistance of YK is lowest in five materials, but resistance of FX was higher than other materials.