Zinc Oxide Nanoparticles and Seaweed Extracts: A Dual Strategy to Improve Quinoa Growth and Grain Yield | ||||
| Alexandria Science Exchange Journal | ||||
| Article 3, Volume 46, Issue 3, September 2025, Page 589-602 PDF (730.39 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asejaiqjsae.2025.444190 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Dalia abdelatty Soliman  
| ||||
| Agronomy, Plant production department ,Faculty of enviromental agricultural sciences ,Arish university | ||||
| Abstract | ||||
| A field experiment was carried out in North Sinai, Egypt during two successive growing seasons 2023/24 and 2024/25 to investigate the effect of the individual and combined foliar applications of seaweed extract (SWE; 3000 mg/L) and zinc oxide nanoparticles (ZnO-NPs; 0, 25, 50, 75 ppm) on the vegetative growth and yield of quinoa (cv. Masr3). A randomized complete block design with a split-plot arrangement was used. Results showed that both SWE and ZnO-NPs significantly improved all measured vegetative parameters (e.g., plant height, number of leaves, leaf area, number of shoots, root length, root number, leaves weight, shoot weight, root weight, inflorescences number, and inflorescences weight) and yield components (e.g., seed cluster number, seed cluster weight, seed weight per plant, 1000-seed weight, and seed yield ). The optimal response was observed with the combination of SWE and 50 ppm ZnO-NPs, indicating a strong synergistic effect. This combination enhanced nutrient uptake, boosted antioxidant activity, and sustained photosynthetic efficiency, leading to improved productivity. However, the combined application of SWE and the highest ZnO-NPs dose (75 ppm) resulted in significant declines in growth and yield due to phytotoxic effects, suggesting that excessive ZnO-NPs may cause physiological imbalance when combined with bioactive compounds. The findings highlight that integrating SWE 3000 mg/L with moderate ZnO-NPs doses of 50 ppm offers a sustainable and climate-smart agronomic strategy to enhance quinoa resilience and yield performance in marginal environments. | ||||
| Keywords | ||||
| Quinoa; zinc oxide nanoparticles; seaweed extract; foliar spray; climate stress | ||||
|
Statistics Article View: 123 PDF Download: 117 |
||||
