Assessing the Impact of Biologically Synthesized ZnO Nanoparticles as Source of Nutrient on the Growth of Zea mays L [post]

Saima Muzammil, Sumera Sabir, Muhammad Asif Zahoor, Muhammad waseem, Muhammad Hussnain Siddique, Muhammad Shafique, Muhammad Imran, Sumreen Hayat, Imran Riaz Malik
2020 unpublished
Nano-fertilizer(s), an emerging field of agriculture, is alternate option for enhancement of plant growth replacing the synthetic fertilizers. For example, zinc oxide nanoparticles (ZnO NPs) can be used as the zinc source for plants. The present investigation was carried out to assess the role of ZnO NPs in growth promotion of maize plants. ZnO NPs were synthesized using Bacillus sp ., which were characterized using Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM) and
more » ... croscope (TEM) and X-ray diffraction (XRD). The different concentrations of ZnO NPs ( i . e . 0, 2, 4, 6, 8, 16 mg/L) for growth enhancement of maize ( Zea mays L.) were explored in pot culture experiment. It was observed that size of ZnO NPs ranged between 16 and 20 nm. A significant increase in growth parameters like shoot length (61.7 %), root length (56.9 %) and significantly higher level of protein was observed in the treated plants as compared to control The overall pattern for growth biomarkers including the protein contents was maximum at 8mg/L of ZnO NPs. It was observed that application of biologically synthesized ZnO NPs has improved majority of growth biomarkers including plant growth parameters, protein contents and leaf area. All these parameters were positively influenced by ZnO NPs. Therefore, biosynthesized ZnO NPs could be considered as an alternate source of nutrient in Zn deficient soils for promoting the modern agriculture.
doi:10.21203/rs.3.rs-20629/v1 fatcat:xirvi6nivzd3tgxt7zddubqwg4