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Browsing by Subject "Sulfate"

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    Physiological insights into sulfate and selenium interaction to improve drought tolerance in mung bean
    (2021) Aqib, Muhammad; Nawaz, Fahim; Majeed, Sadia; Ghaffar, Abdul; Ahmad, Khawaja Shafique; Shehzad, Muhammad Asif; Tahir, Muhammad Naeem; Aurangzaib, Muhammad; Javeed, Hafiz Muhammad Rashad; Habib-ur-Rahman, Muhammad; Usmani, Muhammad Munir
    The present study involved two pot experiments to investigate the response of mung bean to the individual or combined SO42− and selenate application under drought stress. A marked increment in biomass and NPK accumulation was recorded in mung bean seedlings fertilized with various SO42− sources, except for CuSO4. Compared to other SO42− fertilizers, ZnSO4 application resulted in the highest increase in growth attributes and shoot nutrient content. Further, the combined S and Se application (S + Se) significantly enhanced relative water content (16%), SPAD value (72%), photosynthetic rate (80%) and activities of catalase (79%), guaiacol peroxidase (53%) and superoxide dismutase (58%) in the leaves of water-stressed mung bean plants. Consequently, the grain yield of mung bean was markedly increased by 105% under water stress conditions. Furthermore, S + Se application considerably increased the concentrations of P (47%), K (75%), S (80%), Zn (160%), and Fe (15%) in mung bean seeds under drought stress conditions. These findings indicate that S + Se application potentially increases the nutritional quality of grain legumes by stimulating photosynthetic apparatus and antioxidative machinery under water deficit conditions. Our results could provide the basis for further experiments on cross-talk between S and Se regulatory pathways to improve the nutritional quality of food crops.