Acta Scientific Agriculture (ASAG)(ISSN: 2581-365X)

Editorial Volume 8 Issue 2

A New method for Computation of Integral Water Capacity (IWC)

Zahra Kazemi

Department of Soil science, University of Tabriz, Iran

*Corresponding Author: Zahra Kazemi, Department of Soil science, University of Tabriz, Iran.

Received: November 27, 2023; Published: January 01, 2024


The latest concept of soil available water for plants, integral water capacity, (IWC), is routinely computed by developing weighting functions (ωi(h)) for limiting factors for available water to plants, within a particular matric potential range (h) in the root medium. It is almost computed using the presumed ωi(h) created by the inventors of this concept and using soil properties without considering plant attributes. Up to now, no study has been done about using leaf water potential (LWP) of plants as a plant response criterion for the computation of IWC. LWP can consider the effects of soil, plant and atmospheric conditions on water availability for plants. In our last research, due to conducting the experiments in the greenhouse and the destructiveness of LWP measurement method, the number of data points was not enough to create appropriate weighting functions based on this index. We suggest more studies on this criterion for determining IWC in the field condition.

Keywords: Leaf Water Potential; Matric Potential; Weighting Function


  1. Groenevelt PH., et al. “A new procedure to determine soil water availability”. Australian Journal of Soil Research 39 (2001): 577-598.
  2. Herve D., et al. “QTL Analysis of photosynthetic and water status traits in sunflower (Helianthus Annus L.) under greenhouse condition”. Journal of Experimental Botany 362 (2001): 1857-1864.
  3. Shirle MN., et al. “Abscisicacidaccumulation and carotenoid and chlorophyll content in relation to water stress and leaf age of different types of citrus”. Journal of Agricultural and Food Chemistry 38 (1990): 1326-1334.
  4. Z Kazemi., et al. “Revisiting integral water capacity on the basis of stomatal conductance at various soil and root length densities in sunflower plant”. Agricultural Water Management 243 (2021): 106451.


Citation: Zahra Kazemi. “A New method for Computation of Integral Water Capacity (IWC)". Acta Scientific Agriculture 8.1 (2024): 01-02.


Copyright: © 2024 Zahra Kazemi. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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