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(A) The K+ flux rate of root under CT, TR and RC. (B) The Na+ flux rate of root under CT, TR and RC. Columns with different letters are significantly different (LSD test, p < 0.01). Error bars are the standard error (±SE) of three biological replications. CT: Normal-temperature treatment. TR: Chilling treatment. RC: Recovery to normal-temperature treatment. Positive flux rate indicates efflux. Negative flux rate indicates influx.
