Effect of pH and some metals (Al, Cu, Cd and Co) on root growth of barley
2000
Tamas. L | Huttova, J. (Slovenska Akadmie Vied, Bratislava (Slovak Republic). Botanicky Ustav)
Inhibition of root elongation is the first visual effect caused after application of toxic elements into the root compartment. In the present study the root growth was used as a parameter to characterise the impact of different concentration of aluminium, as well as the effect of other phytotoxic elements (copper, cadmium and cobalt) on the behaviour of two barley cultivars (Hordeum vulgare L.) with different sensitivity to aluminium. The length of root growth was also followed after 4-day cultivation of barley seedlings in solution with pH-values ranging form 3.5 to 6.5, to exclude the effect of pH on sensitivity of plants to studied metals. Analysis of root growth intensity showed that pH itself does not substantially influence the growth of barley roots. On the other hand, inhibition of root growth by aluminium, cadmium and cobalt respectively, was more pronounced by Al-sensitive cultivar Alfor that of Al-resistant cultivar Bavaria
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