Summary
Chromium applied to a noncalcareous soil at 50 ppm did not decrease yields of bush beans (Phaseolus vulgaris L. var Improved Tendergreen), but when EDTA (ethylenediamine tetraacetic acid) was added with it, it did. Very little Cr was present in leaves. In solution culture 10-5 M Cr and higher were toxic. With solution culture the highest level of Cr in leaves was about 30 ppm and in general there was a decreasing gradient in Cr from roots to stems to leaves. EDTA had less effect in solution cultures on Cr toxicity because the Cr was already in solution. Chromium toxicity decreased cation levels in plants.
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References
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Wallace, A., Soufi, S.M., Cha, J.W. et al. Some effects of chromium toxicity on bush bean plants grown in soil. Plant Soil 44, 471–473 (1976). https://doi.org/10.1007/BF00015901
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DOI: https://doi.org/10.1007/BF00015901