Influence of Nanoparticle Application and Storage Conditions on Viability, Germination, and Yield of Lettuce (Lactuca sativa) Seed.
DOI:
https://doi.org/10.56286/NTU-JAVS.2026.6.3.273-281Keywords:
Nanoparticle, Germination, Lettuce, SeedAbstract
This research analyzes the impact of storage temperature and nanoparticle treatments on the germination, viability, and yield of sativa lettuce seeds. At varying concentrations, lettuce seeds were treated with ZnO, CuO, and TiO2 nanoparticles at 750, 1250, and 1500 mg kg⁻¹, and then stored for six months at 4°C and 10°C. Lab tests were conducted in the College of Agricultural Engineering Sciences from 1st September 2023 in a factorial completely random design (CRD), while the field tests were conducted after the germination of the seeds in the lab, and they were planted in the seed lots after 6 weeks and planted in the field on 15th October 2023 within blocks using the randomize complete block design (RCBD). Observed indicators included some of the most important germination steps, as well as vegetative growth and biochemical indices. Findings indicated that both ZnO @750 mg.kg-1 and CuO @1250 mg.kg-1 nanoparticles enhanced the speed of seed germination, as well as the vigor index and germination rates, when compared to the control. Furthermore, the nanoparticle treatments, especially at 4°C, advanced the head weight, leaf area, and chlorophyll content of the plants’ vegetative growth. Chemical composition analysis revealed increased crude protein, carbohydrate, and vitamin content in plants treated with ZnO nanoparticles @ 750 mg.kg-1. Seed production traits, such as average single seed weight and yield per plant, were also positively influenced by specific nanoparticle treatments. These findings demonstrate the potential of nanotechnology to enhance seed viability and crop productivity, contributing to sustainable agricultural practices.
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