Ameliorative role of foliar Zn-lysine application on wheat (Triticum aestivum L.) stressed by Tannery Wastewater

Wajiha Sarfraz; Mujahid Farid; Noreen Khalid; Zarrin Fatima Rizvi; Zaki Ul Zaman Asam; Aisha Nazir; Nayab Naeem; Sheharyaar Farid; Shafaqat Ali

doi:10.1007/s12298-022-01265-6

Ameliorative role of foliar Zn-lysine application on wheat (Triticum aestivum L.) stressed by Tannery Wastewater

Physiol Mol Biol Plants. 2022 Dec;28(11-12):2099-2110. doi: 10.1007/s12298-022-01265-6. Epub 2022 Dec 17.

Authors

Wajiha Sarfraz¹, Mujahid Farid², Noreen Khalid¹, Zarrin Fatima Rizvi¹, Zaki Ul Zaman Asam², Aisha Nazir³, Nayab Naeem¹, Sheharyaar Farid⁴, Shafaqat Ali^{5

6}

Affiliations

¹ Department of Botany, Government College Women University, Sialkot, Pakistan.
² Department of Environmental Sciences, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700 Pakistan.
³ Department of Botany, University of the Punjab, Lahore, Pakistan.
⁴ Earth and Life Sciences, School of Natural Sciences and Ryan Institute, University of Galway, Galway, Ireland.
⁵ Department of Environmental Sciences, Government College University, Faisalabad, Pakistan.
⁶ Department of Biological Sciences and Technology, China Medical University, Taichung, Taiwan.

Abstract

Tannery industries discharge a high concentration of chromium (Cr) along with other heavy metals, which are hazardous for all life forms. With increasing shortage of freshwater, tannery effluent is frequently used for crop an irrigation, causing damage to plants' health. In order to address this challenge, amino acid chelate fertilizer was used to investigate the impact on wheat crops against tannery waste water. Tannery wastewater (TW) was used at different levels such as 0%, 25%, 50%, and 100% with an amendment of foliar Zn-lysine (Zn-lys) at30 mg/L. This research highlighted the positive correlation of Zn-lysine on the morpho-physiological, biochemical, and gas exchange traits under different levels of tannery wastewater. The findings of this study showed that the application of Cr-rich tannery wastewater at different treatment levels resulted in a significant reduction in plant height (23%, 31%, and 36%), the number of tillers (21%, 30%, and 43%), spike (19%, 36%, and 55%) and dry weight (DW) of grains (10%, 25%, and 49%) roots DW (17%, 41%, 56%), and shoots DW (22%, 32%, and 47%) as compared to control. Foliar-applied Zn-lys positively enhanced photosynthetic attributes, antioxidant enzymes activities and gas exchange traits by reducing the oxidative stress alone and under Cr stress. The concentration of Cr in roots (21%, 37%, 38%) and shoots (11%, 36%, 37%) was reduced by the foliar application of Zn-lys at different treatment levels. These findings conclude that Zn-lys served as a protector for the growth and development of wheat and has an incredible potential to inhibit the phytotoxicity induced by excess Cr.

Supplementary information: The online version contains supplementary material available at 10.1007/s12298-022-01265-6.

Keywords: Chromium; Oxidative stress; Photosynthetic; Phytotoxicity; Wheat; Zn-lysine.

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