TITLE:
Positive and Negative Environmental Effect of Using Zinc Oxide Nanoparticles on Wheat under Drought Stress
AUTHORS:
Gehan H. Abd El-Aziz, Shreen S. Ahmed, Khaled H. Radwan, Ashraf H. Fahmy
KEYWORDS:
Nanoparticles, Zinc, Wheat, Drought Stress
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.12 No.6,
June
29,
2022
ABSTRACT: Nanoscience is a development concept in the field of agriculture. Water
scarcity is one of the most serious stresses that restrict growth of plant.
This search was done to value the positive and negative influence of ZnO
nanoparticles on wheat plant growth under drought stress. A green synthesis
technique was used to produce pollutant-free nano structures. A field
experiment was carried out during successive season (2019/2020). NP-Zn-O was
applied either by seed-soaking, foliar spraying, or both together applications.
The dose of ZnO NPs was 100 mg/l. Data showed that drought stress reduced the
grain and shoot wheat yield. The use of different forms of ZnO improved the grain and shoot wheat yield,
these increases reached 1.16-, 1.54-fold that control. In addition, one of the
other effects of Zn-O-NPs is to increase the levels of chlorophyll and proline
antioxidants in plant tissues, as it is a cofactor for enzymes such as
superoxide dismutase and catalase. The data suggest that the role of ZnO NPs is
not only to improve plant growth and physiological parameters, but also to
improve nutrient uptake and plant nutrient levels. In this regard, the use of
zinc in the form of ZnO NPs has a positive effect on reducing the adverse effects of drought conditions
and improving the nutritional quality of plants.