• R GHAFFAR Department of Horticultural Sciences, FA& ES, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
  • MR SHAHEEN Department of Horticultural Sciences, FA& ES, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
  • R HUSSAIN Department of Horticultural Sciences, FA& ES, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
  • S ANJUM Institute of Botany, Faculty of Life Sciences, University of the Punjab, Lahore, 54590, Pakistan
  • S RASHID Institute of Horticultural Research Institute, Ayub Agricultural Research Institute, Faisalabad, Punjab, Pakistan
  • MA SAEED Department of Horticultural Sciences, FA& ES, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
  • A SHABBIR Department of Horticultural Sciences, FA& ES, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
  • MU AMJAD Department of Horticultural Sciences, FA& ES, The Islamia University of Bahawalpur 63100, Punjab, Pakistan



Tomato, Photosystem II, Antioxidants, Plant water relations, Drought


Due to physiological repercussions, the tomato crop has decreased productivity caused by drought throughout its entire life cycle. The tomato harvest has exceeded expectations due to a worldwide water resource limitation. The objective of subjecting the tomato cultivars Flanto and Sahel, to a self-imposed drought was to investigate the interrelationships among biochemical, physiological, enzymatic, and water-related factors. Five varying levels of moisture strongly impacted all plant attributes: 100%, 80%, 60%, 40%, and 20% when subjected to drought stress. The lack of water resulted in notable improvements in some metrics. Some examples of these traits include linear electron flow (LEF), photosynthetic efficiency (PSE), inward light dissipation ratio (qP), catalase activity (CAT), ascorbate peroxidase activity (APX), and leaf water potential (LEWP). Consider, for example, the intriguing discoveries concerning photosystem II, non-photochemical quenching, chlorophyll levels, leaf osmotic potential, and leaf turgor potential.


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