Abstract

A field experiment was carried out the pearl millet (Pennisetum americanum L., Leeke) in a mixture of garden soil, manure, and sand (1:1:1) to investigate the effects of supplementary calcium carbonate on plants grown at high NaCl concentration (50 mM). The treatments were: (i) control, (ii)NaCl treatment alone (50 mM); (iii) combined salt (50mM NaCl+10mM CaCo₃). The plants grown under NaCl stress produced low fresh and dry weight and relative water content that those grown in control plants. Supplemental calcium carbonate added to NaCl treated plants significantly improved the growth and physiolocal differences affected by stress (e.g. plant growth, and membrane permeability) and also increase the K⁺ , Ca²⁺ , and N content in pearl millet. The effects of supplemental CaCO₃ in maintaining membrane permeability, increase the content of  Ca²⁺ , N and K⁺  and reduce the content of Na⁺ in pearl millet crops production caused by high NaCl salinity.

A3 Role of calcium carbonate on growth, membrane stability pdf