Growth, yield and biochemical changes of soybean plant in response to iron and magnesium oxide nanoparticles

Background and Objective: New technology in agriculture focused on the use of nano fertilizers. Mineral oxides nanoparticles used in industries of fertilizers and therefore studying their impact on different plants were of concern. Minerals in forms of nanoparticles found to have the ability to enhance growth and yield of plants and helps on overcoming the adverse effects of soil conditions. Materials and Methods: Different foliar concentrations of Iron-oxide and magnesium-oxide nanoparticles materials (0, 10, 20, 30 and 40 ppm) were sprayed twice on soybean at 30 and 45 days after sowing. Plant samples were taken after 60 days from sowing for growth and biochemical parameters measurement. Results: There are improvements in growth parameters of soybean plants due to foliar spraying of both tested materials. The two tested nanoparticle materials increased significantly some biochemical constituents, photosynthetic pigments, compatible solutes, endogenous growth regulators and phenol yield and its attributes. Catalase content reached its maximum value with 30 ppm treatment concentrations of both tested materials. The values of seed components (protein and carbohydrate percentages) reflected the positive effect of using nanoparticles of tested materials, but such difference was not significant in case of oil (%). The SDS-PAGE banding patterns showed that tested nanoparticle materials induce slight differences between treatments. Conclusion: Both tested materials may act as nano-fertilizer sources that help the plant to overcome the adverse effects of such soil shortage in nutrients necessary for plant growth and development and accordingly its yield and quality.