Mathematical Modeling of Measuring the Hydraulic Conductivity of Roots by the Relaxation Method

摘要

The continuum model of radial mass transfer in plant roots developed previously has been used for processing the nonstationary experiments on determining the root hydraulic conductivity. In contrast to compartmental models, our model allows describing the shape of the relaxation curve, in particular, separat-ing segments with different relaxation times. It is shown that to correctly determine the hydraulic conductiv-ity, the method of data processing should be modified. A method for estimating the extracellular to intracel-lular conductivity ratio is proposed.