Response of giant sequoia canopy foliage to elevated concentrations of atmospheric ozone.

@article{Grulke1996ResponseOG,
  title={Response of giant sequoia canopy foliage to elevated concentrations of atmospheric ozone.},
  author={Nancy E Grulke and Perry R. Miller and D. Scioli},
  journal={Tree physiology},
  year={1996},
  volume={16 6},
  pages={
          575-81
        }
}
We examined the physiological response of foliage in the upper third of the canopy of 125-year-old giant sequoia (Sequoiadendron giganteum Buchholz.) trees to a 61-day exposure to 0.25x, 1x, 2x or 3x ambient ozone concentration. Four branch exposure chambers, one per ozone treatment, were installed on 1-m long secondary branches of each tree at a height of 34 m. No visible symptoms of foliar ozone damage were apparent throughout the 61-day exposure period and none of the ozone treatments… CONTINUE READING

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