Combined use of zinc nanoparticles and co-composted biochar enhanced wheat growth and decreased Cd concentration in grains under Cd and drought stress: A field study
| Autor: | Shafaqat Ali, Muhammad Farooq Qayyum, Khalid Mahmud Hussaini, Aziz Ullah Sayal, Muhammad Rizwan, Abdulaziz Abdullah Alsahli, Muhammad Adrees, Muhammad Zia ur Rehman, Mohammed Nasser Alyemeni, Arooj Bashir |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
021110 strategic
defence & security studies Cadmium Irrigation Chemistry fungi 0211 other engineering and technologies food and beverages Soil Science Biomass chemistry.chemical_element Sowing 02 engineering and technology Plant Science Zinc 010501 environmental sciences complex mixtures 01 natural sciences Horticulture chemistry.chemical_compound Dry weight Chlorophyll Biochar 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Environmental Technology & Innovation. 23:101518 |
| ISSN: | 2352-1864 |
| DOI: | 10.1016/j.eti.2021.101518 |
| Popis: | Toxic metals present in soil and water severally affect the food crops and create serious health concerns. The current field study was focused on the impacts of foliar spray of zinc oxide nanoparticles (ZnO NPs) (100 mg/L) and soil applied co-composted biochar (0.5% w/w) on yield and cadmium (Cd) accumulation by grains of wheat (Triticum aestivum L.) under simultaneous Cd and water limited stress. After 60 days of seeds sowing, drought stress was initiated in half plots by alternate irrigation compared to normal irrigation. Plants were harvested after 122 days and various physiological parameters were measured. Results showed that drought and Cd stress collectively decreased plant dry weight and chlorophyll contents and caused oxidative stress in leaves. While application of NPs and co-composted biochar improved the plants biomass and chlorophyll contents by overcoming the oxidative stress and alterating the antioxidants enzymatic activities in stressed plants. Combined application of NPs and co-composted biochar restricted the Cd uptake below its threshold level in grains (0.2 mg/kg). The current study concluded that the combination of ZnO NPs and co-composted BC was helpful to improve wheat growth and biomass, chlorophylls contents, antioxidant enzyme activities by scavenging ROS and reducing Cd uptake by plants under simultaneous Cd and drought stress. |
| Databáze: | OpenAIRE |
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