Water relations of differentially irrigated cotton exposed to ozone.

This field study was conducted to test the hypothesis that plants chronically exposed to O 3 may be more susceptible to drought because O 3 typically inhibits root growth and increases shoot-root ratios in plants. Cotton (Gossypium hirsutum L. cv. Acala SJ-2) was grown in open-top chambers on Hanford coarse sandy loam (coarse-loamy, mixed, non-acid, thermic, Typic Xerorthents) in Riverside, CA. Plants were grown under three irrigation regimes (...)