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Stomatal conductance, fleck injury, and growth of tobacco cultivars varying in ozone tolerance



Stomatal conductance, fleck injury, and growth of tobacco cultivars varying in ozone tolerance



Phytopathology 62(1): 63-67



4 tobacco varying in ozone sensitivity were grown in the field and in the glasshouse with charcoal-filtered and unfiltered air. Total leaf conductance was greater in O3-sensitive than O3-tolerant cv.; both adaxial and abaxial conductances were greater. The differences in stomatal conductance were not sufficient to account for differences in fleck damage. In O3-free air the 2 sensitive grew more than did the tolerant cv.; the reverse was true in unfiltered air.

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