Question

Write the formula for measuring water potential in plant.​

Answer 1

Answer:

Water potential values for the water in a plant root, stem, or leaf are therefore expressed relative to Ψ wpure H2O. The water potential in plant solutions is influenced by solute concentration, pressure, gravity, and factors called matrix effects.

Answer 2

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☞ Most estimates of total water potential are made using thermocouple psychrometers or hygrometers, or the pressure chamber. Psychrometers and hygrometers measure wet bulb or dew point temperature depression, respectively, in thermal and vapor equilibrium with a plant (or soil) sample.

☞ Water potential (Ψ) is actually determined by taking into account two factors - osmotic (or solute) potential (ΨS) and pressure potential (ΨP). The formula for calculating water potential is Ψ = ΨS + ΨP. Osmotic potential is directly proportional to the solute concentration.