Water relations in plants and its role in plant metabolism

Plant Water Relations

    • Water is known as the liquid gold or elixir of life and a major constituent of all living cells.
    • Water content in cell ranges from 70 to 90 per cent.
    • Water is dynamic in plant. It forms the major constituent of living things (cells) and all the vital processes of the life are carried out in it.
    • In living tissue, water is the medium for many biochemical reactions and extraction processes.
    • Inorganic nutrients, photosynthates and hormones are transported in aqueous solution.
    • Movement of water form soil solution to root, stem and then to atmosphere, this continuous movement from soil to atmosphere is called as soil-plant-atmosphere water continuum [SPAC].
    • Evaporation of water can control the temperature of leaf on canopy. Soil nutrients are available to plant roots only when dissolved in water.

Last modified: Monday, 25 June 2012, 6:42 AM