Effect of lead on imbibition, germination, and growth of Phaseolus vulgaris L. and Zea mays L.

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Effect of lead on imbibition, germination, and growth of Phaseolus vulgaris L. and Zea mays L.

Journal Title: Biotecnología Vegetal - Year 2013, Vol 13, Issue 3

Abstract

Lead is highly reactive and it can be consequently toxic to living cells to both plants and humans. This heavy metal is a source of contamination to the environment and it disrupts natural cycles. The present study was aimed to evaluate the effect of lead on the im bibiti on process, germination and growth in the bean (Phaseolus vulgaris L.) and maize (Zea mays L.). It was developed a system consisting of receptacles to expose flooded plants at different concentrations of the metal. Results showed that at concentrations of 5 g l -1 lead imbibition process was affected, but was more evident in bean. Germination percentage was not affected in maize seeds, while viability was affected in bean seeds. We observed statistically that there is an effect on organ growth of root, stem and leaf in both species in the presence of solution whose effect is most noticeable in bean plants.

Authors and Affiliations

Gustavo Isaza Guzmán

Keywords

heavy metals phytoremediation stress toxic substances.

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EP ID EP683663
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