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For a mesophyte growing in a moist soil, water potential of its root sap is -3 atm, then how to find the water potential of moist soil and leaf respectively?

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I don't know if we can calculate the exact values. The only thing I can say is that the potential of the soil will be less negative than -3 while that of the leaf will be more negative.

You know that water travels from higher potential to lower potential. So, it will travel from a region of less negative water potential to a region of more negative water potential.

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  • $\begingroup$ Could you please explain the reason behind your answer? $\endgroup$ – Rudstar May 27 '14 at 13:12
  • $\begingroup$ @Rudstar Yeah sure.. You know that water travels from higher potential to lower potential. So, it will travel from less negative to more negative. $\endgroup$ – biogirl May 27 '14 at 13:16

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