Under different phosphorus levels(+P and -P), the pot experiments were carried out to study the variation of root hydraulic conductivity (Lp r) of corn, wheat and barley seedlings treated with different irrigation (normal water supply, medium drought stress, heavy drought stress), and the recovery ability of Lp r during the course of water re-supplies in the pressure chamber. The results showed that under different water regime, the Lp r of -P was always lower than that of +P treatment, and the former de...
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