عنوان مقاله [English]
This study was conducted on the stability of the inhibitory effects of Ag nano-particles on seed germination and growth characteristic of Scots pine (Pinus sylvestris L.) seeds planted in soil. The study was conducted as a factorial experiment in completely randomized design with 3 replications. Experimental factors were different concentrations of silver nano-particles and different planting dates after mixing Ag nano-particles with soil. The results showed significant differences of the evaluated traits amongst the experimental treatments. Moreover, increasing the concentration of silver nano-particles was shown to result in significant decrease in early growth characteristics compared to control in the all examined planting dates. The maximum reductions in the above mentioned traits were observed in 100 mg/kg silver nano-particles. The reduction for most of the studied traits started at 20 mg/kg silver nano-particles indicated the vulnerably of P. sylvstris to silver nano-particles. These findings showed that Ag nano-particles in the soil have inhibitory effects on seed germination and growth characteristics of P. sylvestris and the time progression decreased the inhibition and toxic effects of silver nanoparticles in soil. This reduction over time could be related to the decreasing silver mobility and bioavailability in the studied soil. Therefore, repeating the current experiment with different woody species and in different environments is recommended.
- Asareh, M.H. and Shariat, A., 2009. Salinity resistance in germination stage and growth stage in some Eucalyptus species. Journal of Agricultural Sciences and Natural Resources, 15(6): 145-157 (In Persian).
- Benn, T.M. and Westerhoff, P., 2008. Nanoparticle silver released into water from commercially available sock fabrics. Environmental Science and Technology, 42(11): 4133-4139.
- Ellis, R.H. and Roberts, E.H., 1980. Towards a rational basis for testing seed quality. In: Hebblethwaite, P.D. (Ed.). Seed Production. Butterworths, London.
- El-Temsah, Y.S. and Joner, E., 2010. Impact of Fe and Ag nanoparticles on seed germination and differences in bioavailability during exposure in aqueous suspension and soil. Environmental Toxicology, 27(1): 42-49.
- Esfahani Moghaddam, M., Fotovat, A. and Haghnia, G.H., 2012. Effects of sewage sludge and synthetic chelates on distribution of silver in calcareous and noncalcareoussoils. Journal of Sciences and Technology of Agriculture and Natural Resources, 16(59): 117-126 (In Persian).
- Gadiri, M., Bayramzadeh, V. and Davoodi, M.H., 2013. The effect of argent nanoparticles on seed germination of Pinus sylvestris in soil and aqueous suspension. Journal of Forest and Wood Products (Iranian Journal of natural Resources), 66(4): 367-375 (In Persian).
- Garineh, M.H., Gomri, M., Farbod, M., Bakhshandeh, A.M. and Rokni, N., 2011. Effects of silver nano particles seed coating on germination and early growth of wheat seedling (Triticum aestivum L.) Pajouhesh & Sazandegi, 92: 73-78 (In Persian).
- Maass, G.J., 2008. Silver Nanoparticles: No threat to the Environment. Colloidal Science Laboratories, Inc. New Jersey, United States, pp. 312-339.
- Kumari, M., Mukherjee, A. and Ghandrasekaran, N., 2009. Genotoxicity of silver nanopartical in Allium cepa. Science of the Total Environment, 407(19): 5243-5246.
- Mazumdar, H. and Ahmed, G.U., 2011. Synthesis of silver nanoparticles and its adverse effect on seed germinations in Oryza Sativa, Vigna radiate and Brassica Campestris. International Journal of Advanced Biotechnology and Research, 2(4): 404-413.
- Marinich, A. and Powell, K., 2017. Scots Pine (Pinus sylvestris L.): Best Management Practices in Ontario. Ontario Invasive Plant Council, Canada, 37p.
- Navarro, E., Piccapietra, F., Wagner, B., Marconi, F., Kaegi, R., Odzak, N., Sigg, L. and Behra, R., 2008. Toxicity of silver nanoparticles to Chlamydomonas reinhardtii. Environmental Science and Technology, 42(23): 8959-8964.
- Oughton, D.H., Hertel-Aas, T., Pellicer, E., Mondoza, E. and Joner, E.J., 2008. Neutron activation of engineered nano-particles as a tool for tracing their environmental fate and uptake in organisms. Environmental Taxicology amd Chemistry, 27(9): 1883-1887.
- Monica, R.F. and Cremonini, R., 2009. Nano-particles and higher plants. Caryologia, 62(2): 161-165.
- Saber, S., GhasimiHagh, Z., Mostafavi, Sh., Bodaghi, H. and Alilo, A., 2012. Effects of nano materials on the germination and seedling growth of brassica seeds. Abstracts of the First National Conference on Application of Nanotechnology in Agriculture and Natural Resources. Tehran, 1-3 Feb. 2012: 215-220 (In Persian).
- Tolaymat, T.M., El-Badawy, A.M., Genaidy, A., Scheckel, K.G., Luxton, T.P. and Suidan, M., 2010. An evidence-based environmental perspective of manufactured silver nanoparticle in syntheses and applications: A systematic review and 16 critical appraisals of peer-reviewed scientific papers. Science of the Total Environment, 408(5): 999-1006.
- Xing, B. and Lin, D., 2007. Phytotoxicity of nano-particles: Inhibition of seed germination and root growth. Environmental Pollution, 150(2): 243-250.
- Wang, X., Sun, C., Gao, S., Wang, L. and Shoukui, H., 2001. Validation of germination rate and root elongation as indicator to assess phytotoxicity with Cucumis sativus. Chemosphere, 44(8): 1711-1721.
- Yin, L., Cheng, Y., Espinasse, B., Colman, B.P., Auffan, M., Wiesner, M., Rose, J., Liu, J. and Bernhardt, E.S. 2011. More than the lons: the effect of silver nano-particles on Lolium multiflorum. Environmental Science and Technology, 45(6): 2360-2367.