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Improvement of biochemical, photosynthetic, and morphological traits of snapdragon (Antirrhinum majus) using chitosan-coated iron oxide and silver nanoparticles | ||
| Journal of Plant Physiology and Breeding | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 25 اردیبهشت 1405 | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22034/jppb.2026.71310.1405 | ||
| نویسندگان | ||
| Younes Pourbeyrami Hir* ؛ Sahar Sardari | ||
| Horticultural Sciences and Landscape Engineering Department, Faculty of Agriculture, University of Mohaghegh Ardabili, Ardabil, Iran. | ||
| چکیده | ||
| Objective: Snapdragon (Antirrhinum majus) with a colorful flowers and aesthetic appeal, is a perennial plant in the Scrophulariaceae family. We aimed to study the effect of chitosan-coated iron oxide (chitosan coated IONPs) and silver nanoparticles (AgNPs) on biochemical and morphological traits of this species. Methods: This research was conducted as factorial experiment based on a completely randomized design with four replications under greenhouse conditions. The factors included chitosan coated IONPs (0, 50, 100, and 150 µM) and AgNPs (0, 50, 100, and 150 mg/L). Measured traits included stem diameter, fresh weight of aerial parts, number of lateral branches, plant height, flower number and diameter, total sugars, total flavonoids, total phenolic content, antioxidant capacity [1,1-diphenyl-2-picrylhydrazil (DPPH)], stomatal conductivity, and chlorophyll fluorescence indices (Fv/F₀ and Fm). Results: The results indicated that various combinations of the chitosan coated IONPs and AgNPs improved vegetative growth, flower production, and most of the physiological indices, depending on the trait. The highest fresh weight, plant height and number of lateral branches were observed in the treatment with 100 µM chitosan coated IONPs and 50 mg/L AgNPs. Increases in Fv/F₀ and Fm enhanced photosynthetic efficiency and overall plant growth. The interaction effects of the two nanoparticle factors on total sugars, total flavonoids, and DPPH were also significant, and the 100 µM chitosan coated IONPs + 100 mg/L AgNPs was a better combination for these characteristics. Phenolic content was also increased by the combined effect of the chitosan coated IONPs and AgNPs through activating the antioxidant defense system. Conclusion: These findings revealed that individual or combined use of chitosan coated IONPs and AgNPs could enhance snapdragon’s performance, with potential applications in sustainable and high-quality ornamental plant production. However, we suggest a future research focusing on optimizing concentrations of these nanoparticles and evaluating their long-term effects. | ||
| کلیدواژهها | ||
| Chlorophyll fluorescence؛ Nanoparticles؛ Snapdragon؛ Stomatal conductivity | ||
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آمار تعداد مشاهده مقاله: 21 |
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