Effect of Saline Culture on the Concentration of Na(superscript +), K(superscript +) and Cl(superscript -) in Agrostis tolonifera

Abdul Majeed ； Muhammad Farrukh Nisar ； Khalid Hussain

《Current Research Journal of Biological Sciences》 2卷1期 (2010/01) Pp. 76-82

並列摘要

A glass house pot experiment was conducted to assess ionic (Na(superscript +), K(superscript +) and Cl(superscript -)) relations and contents in two differently adapted (salt marsh (SM) and inland (IL)) clones of Agrostis stolonifera. In non-saline medium the roots, stems and leaves of the SM and IL clones demonstrated relatively lower concentration of Na(superscript +) and Cl(superscript -) as compared to concentration of K(superscript +). But when cultured with NaCl, the concentration of Na(superscript +) and Cl(superscript -) increased in all organs in both the clones. Increased NaCl concentration in culture medium caused a progressive decrease of K(superscript +) uptake in the roots and stems of both the clones. It was also found that Na(superscript +) and Cl(superscript -) concentrations were higher in stems than in roots and leaves in salt treated plants. In the leaves, however, Na(superscript +) and Cl(superscript -) levels showed a stiochiometric relationship. In older leaves higher concentration of Na(superscript +) and Cl(superscript -) was found as compared to younger leaves in SM and IL plants. Better adaptability of SM plants to salt stress was due to some inherent genetic variability linked with their growth.

並列關鍵字

Agrostis stolonifera ； genetic variability ； inland clone ； NaCl ； salt marsh clone and stiochio metric relationship