Titanium dioxide nano particles improving impact on sunflower seedling’s emergence performance

Authors : Sibel Day, Yasin Özgen

Pages : 108-111

Doi:10.30616/ajb.1270434

View : 170 | Download : 211

Publication Date : 2023-11-15

Article Type : Research Paper

Abstract :Seed germination and seedling emergence is the main step of cultivation and improving them could yield high performance in the field. Improved seedling emergence means less sensitivity to biotic and abiotic stress factors. It is possible to enhance seedling emergence via different technologies. Nanoparticles are one of the improving technology and their impact on crop cultivation are improving day by day. The seeds of hybrid-snack type cultivar Ahmetbey and for seed treatment agent TiO₂ nanoparticles were used in this experiment. This study was conducted to observe the impact of seed treatment with different titanium dioxide (TiO₂) nanoparticles (NPs) concentrations (6, 12, and 24 mg Lˉ¹) with dimensions of 20-50 nm during 8 hours on the emergence and seedling growth performance of snack-type sunflower cultivar Ahmetbey. Four replicates of 50 seeds in each treatment were sown in plastic trays 4 cm deep and placed in a growth chamber at 20 ± 2 °C 45 μM photons m-² s-¹ light for 16 h. Mean emergence time (MET), emergence percentage, seedling vigor, root-to-shoot length ratio, shoot length, and root length seedling fresh and dry weight were measured. Emergence percentage, shoot length, root length, and fresh and dry weight of seedlings increased with TiO₂ NPs treatments. The results revealed that 8-hour priming with water has a low impact on seeds of cv. Ahmetbey compared to any treatment of TiO₂ NPs. In conclusion, it is proved that the improving effects of 8 hour priming of sunflower seeds with TiO₂ NPs solutions on sunflower seedling emergence.
Keywords : TiO₂, tohum uygulaması, ayçiçeği, hydropriming

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