Change in Water Conducting Properties of Plant Roots by Nutrition and Salt Stress |
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| Authors: | M Salim |
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| Institution: | School of Biological Science, University of Sydney, Australia - 2006 |
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| Abstract: | Mung bean plants were grown in half strength Hoagland nutrient solution and with only 2 mM N and no P. One set of these plants was exposed to 25 mM NaCl salinity. Plant growth was depressed to different degrees with the nutrition and salt stress. Measurements on the volume flow (Jv) and hydraulic conductivity (Lp) of the detopped 23 day old plants were made under applied pressure of 0.207 MPa. The transpirational water flow (Jt) and the values of Jv were similar for most of the treatments. Values of Jt, Jv and Lp of plants decreased when both the nutrition and the salinity stress were imposed. Simultaneous stress of nutrients and salinity appeared to damage the cell membranes. |
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