Effect of PP333 on the growth of two turfgrasses

The effect of PP333 with different concentrations (100, 200, 300, 400, 500 mg/L) on the growth of two cold season turf grasses (Poa pratensis and Festuca arundinacea) was studied through spraying the chemical solution on the leaf of the grasses which were planted in pots. The results showed that the height, length and contents of chlorophyll and MDA in leaf were decreased, while the activity of CAT was increased. The effect of PP333 performed an increasing trend with the treatment concentration. And it could be concluded that the resistance of the turf grasses could be improved by spraying PP333.