Uptake and accumulation of lead in Lycopersicon esculentum and Phaseolus vulgaris L. planted on organic hydroponics

ABSTRACT

The effects of lead nitrate Pb(NO₃)₂ on cherry tomato, Lycopersicon esculentum and green beans, Phaseolus vulgaris L. planted on organic hydroponics, was assessed in terms of performance and production at various concentrations (5, 10 and 20 ppm). The residual lead was also determined in experimental soil, nutrient solution, and in experimental plant tissues. Results showed that plant performance was significantly reduced with increasing concentrations of lead contamination. Results also showed that the highest concentrations of lead was found in the plant leaves for green beans, but it was accumulated in the cherry tomato roots rather than in the other tissues, meanwhile the fruits accumulated the lowest concentration for both plants; however, lead contamination has no adverse effects on both plants' production.

KEYWORDS:

• Bioponics
• cherry tomato
• green bean
• lead
• uptake

Acknowledgments

This manuscript was produced in collaboration between the Scientific Institute and the Faculty of Sciences of Rabat.

Data availability statement

The authors confirm that the data of this study is available from the corresponding author.

Disclosure statement

No potential conflict of interest was reported by the authors.