Kinetin-induced modification in growth criteria, ion contents and water relations of sorghum plants treated with cadmium chloride

Haroun, S. A. and Aldesuquy, H. S. and Abo-Hamed, S. A. and El-Said, A. A. (2003) Kinetin-induced modification in growth criteria, ion contents and water relations of sorghum plants treated with cadmium chloride. Acta Botanica Hungarica, 45 (1-2). pp. 113-126. ISSN 0236-6495

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Abstract

The objective of this study was to investigate the effect of soil drench with three different concentrations of CdCl2 on growth criteria, ions content and water relations of Sorghum bicolor plants. Also particular interest was focused on the effect of grain presoaking with kinetin in order to ameliorate the toxicity effects exerted by the different levels of CdCl2. In general, the results showed, that the observed suppression in growth criteria (i.e. root length, root fresh and dry weights, plant height, shoot fresh and dry weights, cumulative leaf area as well as root/shoot ratio), ions content (i.e. K+, Na+, Ca2+ and Cd2+), water relations (i.e. total leaf conductivity, transpiration rate and relative water content) in response to CdCl2 was relieved either partially or completely when grains were presoaked in kinetin (50 ppm). The alleviating effect of kinetin for Cd2+ toxicity was more pronounced in response to 1 mM CdCl2 treatment.

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