In order to analysis the explained the changes of physiological biochemistry of Pinot Noir under water stress. Wine grape cultivar Pinot Noir as experimental materials of greenhouse in college of enology , Under water stress condition,the Proline、MDA、the soluble protein and the soluble sugar content of Pinot Noir Leaf were determined. With comparison of natural irrigation, the content of ABA、GA、IAA of Pinot Noir were determined by using HPLC. The effects of Ca2+ on main drought resistance physiologic...