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Effect of salt stress on growth and biochemical properties of little millet (Panicum miliare L.)

Muhammad Siddique Lashari, Bakht-Un-Nisa Mangan, Inayatullah Rajpar, Muhram Ali, Majid Sikandar Jogi and Tanveer Ali Sial

The major proportion of chloride salts have been observed in the saline soils of Pakistan in the forms of chlorides of Na+, Ca2+ and Mg2+. The saline soils of coastal areas have plenty of chloride salts, which create physiological drought, osmotic imbalance and ion toxicity to various plant species. Nonetheless, the adverse effect of Cl- may vary with types of salt and species of plant. This pot experiment reports the effect of 120 mol m-3 concentration of different salts of Cl- on the growth, ion contents and yield of little millet crop. The salinity treatments consist of S0: Control (No salts), S1: NaCl, S2: MgCl2, S3: CaCl2, S4: mixture of NaCl, MgCl2 and CaCl2, (1:1:1) and S5: salt efflorescence. The results indicate the adverse impacts of all chloride salts on plant growth, yield and internal chemical compositions of plant biomolecules. In comparison of control treatment (S0), the maximum decrease in plant height by 13.97%, number of tillers by 27.42%, root biomass by 45.92% and grain and straw yield by 31.78% and 14.83% respectively was observed in treatment S1. Moreover, the concentration of toxic elements like sodium and chloride were observed significant at (p<0.05) in S1 and S5 treatments. Similarly, the concentration of effective ion nitrogen, phosphorus and potassium were suppressed and found lowest in S1, S2, S4 by 74.21%, 40.21%, 35%% respectively. It is concluded that, the chlorides of sodium at the concentration of 120 mol m-3 are highly toxic for growth and biochemical properties in comparison to other salts of the chlorides and salt efflorescence.  

To Cite this article: Lashari, M.S., B.U.N. Mangan, I. Rajpar, M. Ali, M.S. Jogi and T.A. Sial. 2022. Effect of salt stress on growth and biochemical properties of little millet (Panicum miliare L.). Pak. J. Bot., 54(5): DOI:  

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