Impact of irrigation water sources on growth and physiological traits in tomato (Solanum lycopersicum)

Authors

  • Lamiaa Belasri Health and Environment Laboratory, Department of Biology, Ain Chock Science Faculty, Hassan II University of Casablanca (https://ror.org/001q4kn48), Morocco
  • Ayoub Mardi Health and Environment Laboratory, Department of Biology, Ain Chock Science Faculty, Hassan II University of Casablanca (https://ror.org/001q4kn48), Morocco
  • Nihad Chakri Association for Action-Research for Sustainable Development, Faculty of Sciences, Aïn Chock Hassan II University of Casablanca (https://ror.org/001q4kn48), Morocco
  • Mehdi El Mellouki Health and Environment Laboratory, Department of Biology, Ain Chock Science Faculty, Hassan II University of Casablanca (https://ror.org/001q4kn48), Morocco
  • Mourad Arabi Laboratory for Improvement of Agricultural Production, Biotechnology and Environment (LAPABE)/ Water, Environment and Health Team, Faculty of Science, Mohamed I University (https://ror.org/01ejxf797), PB 717 60000, BV M6, Oujda, Morocco
  • Fouad Amraoui Association for Action-Research for Sustainable Development, Faculty of Sciences, Aïn Chock Hassan II University of Casablanca (https://ror.org/001q4kn48), Morocco
  • Btissam El Amrani Association for Action-Research for Sustainable Development, Faculty of Sciences, Aïn Chock Hassan II University of Casablanca (https://ror.org/001q4kn48), Morocco
  • Samah Ait Benichou Health and Environment Laboratory, Department of Biology, Ain Chock Science Faculty, Hassan II University of Casablanca (https://ror.org/001q4kn48), Morocco.

DOI:

https://doi.org/10.63095/NBSEH.25.513288

Keywords:

Solanum lycopersicum, Wastewater, Metabolic stress, Irrigation

Abstract

This study examined the effects of tap water (TW), treated wastewater (TWW), and raw wastewater (RWW) on Solanum lycopersicum. Raw wastewater showed high nitrite (42.57 ± 1.78 mg·L⁻¹) and BOD₅ (170 ± 12 mg·L⁻¹) levels. These values were lower in TWW (12.41 ± 0.56 mg·L⁻¹ and 20 ± 4.5 mg·L⁻¹), which met Moroccan irrigation standards. Germination tests revealed higher α-amylase activity and germination index in RWW. This may reflect nutrient enrichment. After 90 days, plants irrigated with TWW showed the strongest vegetative growth, with taller stems (57.5 cm) and larger leaves. Microbiological analysis of tomato fruits showed minimal contamination across treatments. Succinate dehydrogenase activity was highest in TW-irrigated plants. This indicated optimal mitochondrial function. TWW produced moderate reductions in activity. RWW caused marked declines in both leaves and fruits, suggesting metabolic inhibition under stress. These findings show that TWW provides a useful balance between nutrient supply and plant health, supporting its suitability for sustainable irrigation.

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References

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This study shows the effects of three irrigation water sources; tap water, treated wastewater, and raw wastewater; on the physiological and metabolic responses of tomato plants. The image points to improved growth and enzymatic activity, especially α-amylase and succinate dehydrogenase (SDH), in plants irrigated with treated wastewater. Raw wastewater causes stress, with visible declines in plant health. The visual reflects two aims: encouraging the safe reuse of treated effluents for sustainable farming, and showing the harm linked to untreated wastewater.

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Published

2025-08-08

How to Cite

Belasri, L., Mardi, A., Chakri, N., El Mellouki, M., Arabi, M., Amraoui, F., … Ait Benichou, S. (2025). Impact of irrigation water sources on growth and physiological traits in tomato (Solanum lycopersicum). Natural Built Social Environment Health, 1(5), 107–124. https://doi.org/10.63095/NBSEH.25.513288