Suaeda salsa (leaf succulence) and Limonium bicolor (secreting) are common halophytic species grown in coastal saline soil area in China. They possess different physiological adaptations which help them to avoid salt stress. Their mechanism of salt tolerance is varied and not properly understood. Therefore, the proposed plan to grow them in highly saline conditions could be hampered. The present study was designed to study the effect of salinity on growth and various solute compositions. Growth of S. salsa showed a 94% and 48% increases in comparison to control in 50 and 100 mM NaCl respectively in both shoot and root while at high salinity (400 mM NaCl) shoot and root dry weight were not significantly different from control. However, in L. bicolor root showed little promotion of shoot growth at 150 and 100 mM NaCl respectively and growth was substantially inhibited at 400 mM NaCl. Suaeda salsa accumulated more Na+ and Cl− ions in comparison to L. bicolor. These ions accumulated more in shoots of S. salsa whereas distributions of ions were similar in both shoots and roots of L. bicolor. Shoot soluble sugar decreased and proline increased with increase of external salinities of both species but shoots of L. bicolor contained relatively higher amount of sugar and proline at high salinity levels.
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Liu, X., Duan, D., Li, W., Tadano, T., Khan, M.A. (2008). A Comparative Study On Responses Of Growth And Solute Composition In Halophytes Suaeda Salsa And Limonium Bicolor To Salinity. In: Khan, M.A., Weber, D.J. (eds) Ecophysiology of High Salinity Tolerant Plants. Tasks for Vegetation Science, vol 40. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4018-0_9
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