Nanoparticle Treatments Based on Zinc Oxide and Moringa oleifera Leaf Extracts Alleviate Salinity Stress in Faba Bean (Vicia faba L.)
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Date
2022
Authors
Ragab, Sherif M.
Turoop, Losenge
Runo, Steven
Nyanjom, Steven
Journal Title
Journal ISSN
Volume Title
Publisher
Scientific Research Publishing
Abstract
Salinity stress limits crop growth and productivity, including legumes in various regions worldwide. The impact of foliar-applied zinc nanoparticles (ZnNPs)
and combined zinc nano-loaded with moringa extracts (ZnONPs) on salt tolerance in faba beans (cultivar, Giza-716) grown under saline soil (50 and 100
mM NaCl) was investigated. Moringa oleifera extract has been used as a chelating agent to synthesize zinc oxide nanoparticles. The crystalline structure,
morphology, and chemical composition of ZnO nanoparticles were studied
using various characterization techniques, including UV-visible spectroscopy
(UV), Fourier Transform Infrared Analysis (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Morphological, chemical, and biochemical parameters of plants at 60 and 90 days after sowing were assessed.
Salinity stress caused a remarkable reduction in growth traits, photosynthetic
pigments and proline levels of the faba bean. Foliar spray with ZnNPs and
ZnONPs on faba bean grown under saline soils promoted plant growth parameters (i.e., shoot length, numbers of leaves, relative water content, shoot
and roots fresh and dry weights), photosynthetic pigments (Chl a, b, total
chlorophyll, and carotenoids), proline and mineral elements (Na+, K+, Ca2+,
and Zn2+) compared to control. However, at 100 mM NaCl, there were no
significant variations in the mentioned parameters. This study suggested that
there is potential for foliar spraying with ZnNPs and ZnONPs in improving
growth parameters, photosynthesis efficiency and biochemical aspects of faba
bean plants under saline conditions.
Description
Article
Keywords
Faba Bean, Green Synthesis, ZnO Nanoparticles, Salinity Stress, Proline
Citation
Ragab, S. M., Turoop, L., Runo, S., & Nyanjom, S. (2022). Nanoparticle treatments based on zinc oxide and Moringa oleifera leaf extracts alleviate salinity stress in faba bean (Vicia faba L.). Journal of Agricultural Chemistry and Environment, 11(1), 42-65.