Document Type : Original Article
Authors
1
College of Agric. Mansoura Unive.
2
Agricultural Chemistry Department, Faculty of Agriculture, Mansoura University, EL-Mansoura, 35516, Egypt
3
Faculty of agriculture, Mansoura University
Abstract
The current research work comes within the framework of efforts to overcome the nutritional gap that is increasing over time. The main objective was to develop fertilization management via increasing the efficiency of amino acids utilization by loading them onto carbon nanoparticles (CNP). It was hypothesized that this technique would improve absorption, permeability and stability of bioactive compounds within the higher plants. It was also hypothesized that doping these CNP with titanium may play a vital role in stimulating physiological processes and increasing biological activity. In this study, the potential effect of the carbon nanoparticles (CNP) reinforced with titanium dioxide (TiO2) as a novel foliar stimulant on garlic plants was studied to present an innovative approach, which contributes to increasing the efficiency of amino acids and improving crop quality using smart and advanced fertilization programs. Carbon nanoparticles synthesis was implemented via Maillard reaction using four amino acids (β-Alanine, citrulline, proline and taurine), glucose and TiO2. A field experiment was carried out under complete randomized experimental design aiming at assessing the impact of CNP reinforced with TiO2 as foliar treatments [T1 (Tap water as control), T2 (β-Alanine CNP + TiO2 at rate of 80 mg L-1), T3 (Citrulline CNP + TiO2 at rate of 80 mg L-1), T4 (Proline CNP + TiO2 at rate of 80 mg L-1) and T5 (Taurine CNP + TiO2 at rate of 80 mg L-1)] on garlic growth performance and productivity. Growth criteria such as plant height, photosynthetic pigments such as carotene, leaf nutritional status such as nitrogen content, bulb yield and quality such as vitamin C were measured and determined. The results showed that all CNP treatments reinforced with TiO2 outperformed the control treatment, as the superior treatment was T5 (Taurine CNP + TiO2 at a rate of 80 mg L-1) followed by T4, T3 and T2, respectively. The control treatment came in the last order in terms of the values of growth and productivity criteria. For example, the increasing rate in the bulb yield values due to the studied treatments compared with the control treatment was 35.34, 37.80, 45.17 and 46.12 % with T2, T3, T4 and T5, respectively. Thus, the obtained results confirmed that the Addition of TiO2 in the synthesis of CNP adds other features to the final product. Generally, it can be concluded that the CNP reinforced with TiO2 as a novel foliar stimulant will maintain the sustainability and improve the agricultural sector. However, future research on this point should be intensified under different manufacturing conditions, which may lead us to a better and more effective product in agricultural production.
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