Effects of High Hydrostatic Pressure Treatment on the Seedling Growth and Quality of Watermelon

The effects of high hydrostatic pressure treatment (50 Mpa, 100 Mpa, 150 Mpa) on the planting percent, chlorophyll contents, peroxidase and quality of watermelon were studied. The results showed that the planting percent in treated group decreased in comparison to the control group and T-test indicated the difference is significant in the believable level of 95. The contents of chlorophyll and carotenoid in the treated group is less than that of the control group, while the activity of peroxidase and adversity resistance in the treated group is more than that of control group. It showed that high hydrostatic pressure treatment can inhibit the growth of watermelon at the early stage and enhance the adversity resistance and the quality of watermelon at the later stage.