• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2010, Volume: 3, Issue: 5, Pages: 561-563

Original Article

Leaf area and ion contents of Sesbania grandiflora under NaCl and Na2SO4 salinity


A solution culture pot study was carried out to see the effect of two contrasting salt species i.e. NaCl and Na2SO4 on the growth and physiology of Sesbania grandiflora. Na+ contents in both the salt species were 0, 10, 20, 30, 40 and 50 mM. A significant difference was observed in case of osmotic pressure of sap which indicated that NaCl had a greater effect on osmotic pressure. There were non-significant differences between the two salt species for leaf area, K+ and Na+ contents and K+ / Na+ ratio. A significant increase in osmotic pressure and Na+content in sap was observed with increasing Na+ concentrations whereas in leaf area, K+ contents of sap and K+ /Na+  ratio decreased with increasing Na+ concentrations. Leaf area of flag leaf was significantly higher in case of Na2SO4 as compared to NaCl treatments.
Keywords: Sesbania grandiflora; leaf area; salinity; ion contents; NaCl; Na2SO4


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