Responses of Pepper during Blossom and Bear Fruit under Drought Stress

Chuanchuanxiang and Shijihong were used as the materials to study changes of some physiological indexes under drought stress in high complete hyocaust.The results indicated that with drought stress prick up,the chlorophyll content always decreased;the free proline and MDA content always increased;the protective enzyme(SOD and POD)activities increased at first and then decreased.Chuanchuanxiang kept great relative chlorophyll content,free proline content and protective enzyme(SOD and POD) activities,and kept little relative MDA content,however,Shijihong was opposite.It indicated that Chuanchuanxiang had the greater ability to resist drought stress while Shijihong had the less ability to do it.