Summary
Tomato (Lycopersicon esculentum Mill.) plants were grown in controlled environments and subjected to different soil water regimes. At 3-, 5-, and 7-leaf growth stages, plants were fumigated with ozone at 50 or 100 pphm for 1 h.
Plants at 5- or 7-leaf stage were not as sensitive to ozone as were the young plants fumigated at 3-leaf stage. At the 7-leaf stage, leaf injury at nearoptimum water condition was very minimal, even at ozone concentration of 100 pphm.
Ozone treatment decreased total dry matter of optimally watered plants fumigated at the 3-leaf stage. Plants subjected to water stress resulting in low leaf relative turgidity prior to ozone fumigation, were considerably protected from ozone phytotoxicity. Open stomata were an important factor in ozone phytotoxicity. Post-fumigation water regimes had no effect on eventual leaf injury. re]19720627
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Khatamian, H., Adedipe, N.O. & Ormrod, D.P. Soil-plant-water aspects of ozone phytotoxicity in tomato plants. Plant Soil 38, 531–541 (1973). https://doi.org/10.1007/BF00010693
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DOI: https://doi.org/10.1007/BF00010693