Research on Optimal Concentration of PP_(333) for Growth of Wheat Seedling

After using different concentrations of PP333 to soak the seeds of wheat variety Chuannong No.17,the respiration rate of the seed,the morphologic indexes of seedling and the physiological indexes of the leaf were determined.The results showed that when the concentration of PP333 was at 100 mg/L,the plant height reduced obviously,the number of the roots increased most,the ratio of root to shoot was the highest,the chlorophyll content was upmost,the anti-stress of the seedling was the strongest,and the inhibition of PP333 on respiration rate was the weakest.