Table 3.

The effect of EDU treatment on foliar Injury of 2-yr-old containerized seedlings of yellow-poplar following 03 fumigation.

OzoneInjury ratingz
Concentration (ppm)EDU InjectionyEDU DrenchxNo EDU
  • zFoliar injury rating from 0-10, 48 hr. after exposure to O3 for 3 hr. Each value represents the mean of 4 seedlings. Data were subjected to arscin transformation prior to statistical analysis. Mean separation among treatments for each O3 concentration by Duncan’s new multiple range test, 5% level.

  • y5 ml EDU (500 ppm) per seedling.

  • x250 ml EDU (500 ppm) per container.