Effect of Graft and Nano ZnO on Nutraceutical and Mineral Content in Bell Pepper

Abstract

The objective of this experiment was to evaluate the effects of grafting, zinc oxide nanoparticles (ZnO NPs), and their interaction on the nutritional composition of bell pepper plants. The treatments evaluated included grafted and non-grafted pepper plants with four concentrations of ZnO NPs (0, 10, 20, 30 mg L−1) applied to the foliage. The following parameters were evaluated: content of N, P, K+, Ca2+, Mg2+, Mn2+, Zn2+, Fe2+, Cu2+, total antioxidants, ascorbic acid, total phenols, glutathione, total proteins, fruit firmness, and total soluble solids. Grafting increased the content of N 12.2%, P 15.9%, K+ 26.7%, Mg2+ 20.3%, Mn2+ 34.7%, Zn2+ 19.5%, Fe2+ 18.2%, Cu2+ 11.5%, antioxidant capacity 2.44%, ascorbic acid 4.63%, total phenols 1.33%, glutathione 7.18%, total proteins 1.08%, fruit firmness 8.8%. The application of 30 mg L−1 ZnO NPs increased the content of N 12.3%, P 25.9%, Mg2+ 36.8%, Mn2+ 42.2%, Zn2+ 27%, Fe2+ 45%, antioxidant activity 13.95%, ascorbic acid 26.77%, total phenols 10.93%, glutathione 11.46%, total proteins 11.01%, and fruit firmness 17.7% compared to the control. The results obtained demonstrate the influence of the use of grafts and ZnO NPs as tools that could improve the quality and nutrient content in fruits of bell pepper crops.

Impacts of ZnO as a nanofertilizer on fenugreek: some biochemical parameters and SCoT analysis

“…These findings agree with Rao et al [ 41 ] and Zhao et al [ 42 ] who declared that nanofertilizers have a pronounced influence on carbohydrates biosynthesis in leaves and can modify protein content of plants. In addition, the ZnO NPs at lower concentrations increased the total soluble protein and carbohydrate contents in various plant species such as cluster bean [ 11 ], green pea [ 43 ], maize [ 44 ], and bell peppers [ 45 ]. These findings are compatible with the fact that zinc at definite concentrations is vital for structural and catalytic constituents of proteins and enzymes as cofactors which are essential for normal plant growth and development [ 46 ].…”

“…Exposure of fenugreek seeds to ZnO NPs at different concentrations affected positively on the seedling contents of flavonoids and phenols, with a highest increase at 30 mg/l. Also, Uresti-Porras et al [ 45 ] found that bell peppers treated with ZnO NPs at concentrations of 30 mg/l revealed a significant increase in total phenolic compounds over the control. In addition, Mohammadghasemi et al [ 47 ] concluded that nanofertilizers improved total phenolic and total flavonoid contents in Lallemantia iberica when compared with the control.…”

Grafting of Vegetable Crops in the Era of Nanotechnology: A photographic Mini Review

“…Among agricultural practices, grafting is a special plant propagation technique, by which could produce and form a new plant as joining an aerial part of the plant (scion) and root part (rootstock) Shalaby et al 2022). The success of grafting mainly depends on the compatibility between the rootstock and the scion, which can support the grafted plants against stresses by improving the nutrients uptake, transport, and their use efficiency (Uresti-Porras et al 2021). Several published reviews and original articles on grafting in vegetables crops have been published such as Keatinge et al (2014), Fernández-Garcí et al (2015, Nawaz et al (2016), Gaion et al (2017), Nawaz et al (2018), Wei et al (2019), Singh et al (2020), Cardarelli et al (2020, Birkas et al (2021), andKubota et al (2022) Env.…”

“…Soil Security, Vol. 6 (2022) 134 fields, grafting was also investigated under the using of applied nanomaterials especially applied nanofertilizers as reported by Uresti-Porras et al (2021) and Sayed et al (2022). Several open questions are still needed to be answered in particular the nano-grafting by using grafting of vegetables under applied nano-pesticides.…”

“…Several open questions are still needed to be answered in particular the nano-grafting by using grafting of vegetables under applied nano-pesticides. Nanofertilizers could be applied to vegetable crops due their enhancing the productivity because they can easily penetrate the stomata, then translocated by the vascular bundles of the xylem and phloem to other tissues (Uresti-Porras et al 2021). Therefore, this work is a call for submitting articles including reviews and mini-reviews as well as photographic form about the nano-grafting in vegetable crops.…”