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| Titel: |
Effect of Salinity on Ion Partitioning in Spring Wheat |
| Auteur: |
Rana Muhammad Iqbal |
| Verschenen in: |
Pakistan journal of biological sciences |
| Paginering: | Jaargang 8 (2005) nr. 2 pagina's 302-306 |
| Jaar: |
2005 |
| Inhoud: |
A hydroponics experiment was carried out to see the effects of salinity by using a Randomized Complete Block Design with 4 salinity treatments and 5 replicates. The salinity levels tested were 0, 50, 100 and 150 mol m-3 NaCl. CaCl2 was also applied to the salinity treatments. Salinity significantly increased Na+ concentration in all the plant parts at both harvests. A gradient of Na+ was found in leaves at both harvests. The lower older leaves had higher Na+ concentration as compared to expanding leaves. At both harvests, a higher Na+ concentration was observed in dead leaves and the lowest living leaf than in other plant parts at all the salinity levels. At both harvests, Na+ concentration was lower in the stem than in tillers and roots at all the salinity levels. At both harvests, Cl- concentrations closely followed the trends of Na+ concentration. In contrast to Na+ concentration, Cl- concentration was higher in the stem and tillers than in the roots. At Harvest 2, Cl- concentration in dead leaves was lower than in leaf four except at 50 mol m-3 NaCl salinity treatment. A gradient of K+ concentration was observed in leaves such that it was the highest in the expanding leaves and lowest in the dead leaves. Moreover, higher K+ concentration was observed in stem and tillers than in roots. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 13 van 35 gevonden artikelen
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