Zinc-mediated attenuation of salinity stress: a study on photosynthetic pigment stability, water balance, and yield of soybean

Authors

  • Sadia Afrin Plant Physiology and Biochemistry Laboratory, Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
  • Farjana Rahman Lopa Plant Physiology and Biochemistry Laboratory, Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
  • Maisa Faria Plant Physiology and Biochemistry Laboratory, Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
  • Nahid Akhtar Plant Physiology and Biochemistry Laboratory, Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh

Keywords:

Zinc, Salinity stress, Soybean, Photosynthetic pigments, Plant water status, Yield

Abstract

An experiment was conducted in zinc-treated soil with 0, 50, 100, 150, 200, and 250 mM NaCl salinity to assess their interaction effect on photosynthetic pigment stability, water balance, and yield of soybean. Salinity reduced photosynthetic pigments, RWC, WRC, and exudation rate, while increasing WSD and WUC. Zinc application mitigated these effects by improving pigment levels, water relations, and yield attributes. Moderate salinity (150 mM NaCl) showed the highest response to Zn application in terms of physiological and yield improvements. Zinc also improved seed yield, pod characteristics, and branch number under salinity. These findings suggest that Zn treatment can partially attenuate the toxic effects of Na+ and Cl- ions and improve soybean yield by enhancing photosynthetic pigment levels and maintaining water status.

Bangladesh J. Bot. 55(2): 295-301, 2026 (June)

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Published

2026-06-29

How to Cite

Zinc-mediated attenuation of salinity stress: a study on photosynthetic pigment stability, water balance, and yield of soybean. (2026). Bangladesh Journal of Botany, 55(2), 295-301. https://banglajol.info/index.php/BJB/article/view/90982

Issue

Vol. 55 No. 2 (2026)

Section

Articles

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© Bangladesh Botanical Society

Authors are required to transfer the copyright of their articles to the journal. The Declaration form is available here http://www.bdbotsociety.org/journal/journal_pdf/declaration_form.pdf

How to Cite

Zinc-mediated attenuation of salinity stress: a study on photosynthetic pigment stability, water balance, and yield of soybean. (2026). Bangladesh Journal of Botany, 55(2), 295-301. https://banglajol.info/index.php/BJB/article/view/90982