| An experiment using PEG6000 to induce water stress was carried out to evaluate the effects of seed soaked with different chemical substance on the germination and seedling growth of wheat.The results were as follows: Soaking seeds with GA increased significantly the germination potential,germination index and the height of wheat plants,but soaking seeds with MnSO4 and with chemical substances including MnSO4 reduced the germination ratio and germination index.Using PP333 or MnSO4 alone to soak seeds enhanced significantly the dry weight of wheat root,while the mixing of them depressed the dry weight of root.In case of water stress,soaking seeds with chemical substance was helpful to the growth of wheat height.The treatment of GA+MnSO4 improved the dry weight of root and shoot under water stress,indicating soaking seeds with GA+MnSO4 could play an important role in raising healthy wheat seedlings. |