Abd El-wahed N. Abd El-wahed

@cairo - egypt

Department of Horticulture, Faculty of Agriculture, Al-Azhar University, Cairo, 11884, Egypt

Abd El-wahed N. Abd El-wahed


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https://researchid.co/abdelwahed127

RESEARCH, TEACHING, or OTHER INTERESTS

Horticulture
5

Scopus Publications

Scopus Publications

  • Green Synthesis of Zinc and Iron Nanoparticles Using Psidium guajava Leaf Extract Stimulates Cowpea Growth, Yield, and Tolerance to Saline Water Irrigation
    Mohamed H. Sheta, Ahmed H. M. Abd El-Wahed, Mohammed A. Elshaer, Hala M. Bayomy, Nawal A. Ozaybi, et al.
    Horticulturae, 2024
    Plants use a variety of physiological, biochemical, and molecular mechanisms to mitigate salt stress impacts. Many techniques, including the application of nanoparticles (NPs), are being used to increase plant stress tolerance. To assess the growth and productivity of Vigna unguiculata L. (cowpea) plants exposed to salt stress, cowpea has been cultivated using different saline water levels and subjected to green synthesized zinc NPs (ZnNPs) and iron NPs (FeNPs) applied via foliar spraying. The cowpea plants that grew under the lowest saline water level showed the best leaf traits, leaf water content per area (LWCA), pods, and seed yields, but when salinity levels increased, the plants’ growth and productivity slightly declined. ZnNP and FeNP treatments slow down the degradation of photosynthetic pigments and greatly mitigate the negative effects of salt stress. In both stressed and unstressed plants, ZnNP treatments produced the highest osmoprotectant concentrations (proline, protein, and total carbohydrates). As a result of salt stress, cowpea seeds showed a marked decrease in dry matter and protein content, but ZnNP and FeNP treatments increased it. Conclusively, the results obtained indicated that ZnNPs and FeNPs foliar application to cowpea plants stimulated leaf pigment and polyphenol production, which in turn increased seed dry matter, seed yield, protein content, and the plants’ ability to withstand saline stress.
  • Improved Water Use Efficiency and Yield of Drip-Irrigated Pepper under Full and Deficit Irrigation Conditions
    Mahmoud Mostafa, Ahmed Abd El-wahed, Saleh Hamad, Mohamed Sheta
    Egyptian Journal of Soil Science, 2024
  • Response of Yield, Quality, and Bioactive Constituents of Green Onion to Foliar Spraying with Moringa oleifera Leaf Extract and Yeast Extract
    Asaad Awad, Ahmed Abd El-Wahed, Ahmed Elateeq, Mahmoud Moustafa, Shakir Ullah, et al.
    Egyptian Journal of Soil Science, 2024
  • Morpho-physiological traits, quality and productivity of garlic under drought stress of different growth stages
    Mahmoud Moustafa, Ahmed Abd El-wahed, Asaad Awad, Mohamed Sheta
    Egyptian Journal of Soil Science, 2024
  • Evaluation of Salicylic Acid Effects on Growth, Biochemical, Yield, and Anatomical Characteristics of Eggplant (Solanum melongena L.) Plants under Salt Stress Conditions
    Emad Mady, Ahmed H. M. Abd El-Wahed, Asaad H. Awad, Turky O. Asar, Ammar Al-Farga, et al.
    Agronomy, 2023
    Salt stress is a major issue in agriculture and crop production that influences global food security. Mitigation options to address salt stress through agronomic practices can help manage this issue. Experiments were performed in two summer seasons in an experimental farm to test the impact of three salinity levels (S): 300 (control), 1000, 2000, and 3000 ppm, and two salicylic acid (SA) levels, including 1.0 and 1.50 mM, and their interaction on growth and yield of eggplant (Solanum melongena L.) hybrid Suma. The results showed that increasing S levels up to 3000 ppm reduced plant and fruit physical characteristics, as well as leaf and fruit chemical characteristics, especially leaf total chlorophyll, carotenoids, relative water, fruit nitrogen, phosphorus, and potassium contents, which led to a reduction in total yield per plant. However, an insignificant effect was observed in the control level and 1000 ppm saline water in leaf area, fruit length, leaf total chlorophyll content, fruit phosphorus content, and total yield per plant. In contrast, leaf sugars, proline contents, electrolyte leakage, fruit TSS (total soluble solids), and ascorbic acid contents were improved with S levels up to the concentration of 3000 ppm compared to the control. However, tested parameters were significantly higher due to the SA foliar spray of 1.0 mM besides photosynthetic pigments of leaves enhanced by using 1.0 and 1.50 mM. Using 1.0 mM SA concentration alleviated the adverse impact of S on eggplant plants until 1000 ppm saline water, reflecting an increase in eggplant yield. The anatomical structure of eggplant leaves revealed positive variations in mature leaf blades in both the stressed and SA-treated plants. Based on these results, the use of SA at a concentration of 1.0 mM may lessen the negative impacts of salt on the growth of eggplant, which increases the overall yield.