Main Article Content
Background: Titanium dioxide (TiO2) NPs are used in agriculture to increase seeds germination and seedlings growth and can improve yield by approximately 30%. The present experimental investigation demonstrated the effect of nanoparticles (NPs) Anatase - TiO2 (<100 nm size) on germination, seedling growth and yield attributing traits of rice.
Methods: Rice seeds were treated with six concentrations (0, 10, 20, 50, 80 and 100 ppm) of nanoTiO2 and placed in Petri plates. Some amount was sown in the field following Randomized Block Design (RBD) with three replications for each treatment.
Results: Application of TiO2 NPs significantly enhanced germination, seedling growth and yield traits for most of the concentrations as compared to the control. About 85% significant improvement of seed germination occurred by 20 ppm of TiO2 NPs. The results of TiO2 treated samples were higher in almost all the growth parameters, but the treatment was highly effective for 20 ppm followed by 50 ppm for grain yield. The response to nano-treatment on seed germination along with yield traits suggested the optimum TiO2 dose limit on these characters on rice.
Roco MC. Nanotechnology convergence with modern biology and medicine. Curr. Opin. Biotechnol. 2003;14(3):337-46.
Lu J, Choi E, Tamanoi F, Zink JI. Light activated nanoimpeller-controlled drug release in cancer cells. Small. 2008;4(4); 421-6.
Boonyanitipong LP, Kositsup P, Kumar P, Baruah S, and Dutta J. Toxicity of ZnO and TiO2 Nanoparticles on Germinating Rice Seed Oryza sativa L. International Journal of Bioscience, Biochemistry and Bioinformatics. 2011;1(4).
Chao SHL and Choi HS. Method for providing enhanced photosynthesis. Korea Research Institute of Chemical Technology, Bulletin, South Korea Press. 2005;10.
Lei Z, Mingyu S, Chao L, Liang C, Hao H, Xiao W, Xiaoqing L, Fan Y, Fengqing G and Fashui H. Effects of nanonatase TiO2 on photosynthesis of spinach chloroplasts under different light illumination. Biol Trace Elem Res J. 2007;119(1):68-76.
Lu CM, Zhang CY, Wen JQ and Wu GR. Effects of nano material on germination and growth of soybean. Soybean Sci. 2002;21:168-171.
Gao F, Hong F, Liu C, Zheng L, Su M, Wu X, Yang F, Wu C, Yang P. Mechanism of nano-anatase TiO2 on promoting photosynthetic carbon reaction of spinach. Biol Trace Elem Res. 2006;111(1-3):239-53.
Lin DH, Xing BS. Phytotoxicity of nanoparticles: Inhibition of seed germination and root growth. Environ Pollut. 2007;150:243–250.
Hong F, Zhou J, Liu C, Yang F, Wu C, Zheng L, Yang P. Effect of nano-TiO2 on photochemical reaction of chloroplasts of spinach. Biol Trace Elem Res. 2005; 105:269-279
Zheng L, Hong F, Lu S and Liu C. Effect of Nano-TiO2, on strength of naturally Aged seeds and growth of spinach. Biol. Trace Elem. Res. 2005;104(1):83-92.
Nair R, Mohamed MS and Gao W, Effect of carbon nanomaterials on the germination and growth of rice plants. Journal of Nanoscience and Nanotechnology. 2012;12(3):2212-20.
Adhikari T, Kundu and Rao AS, Impact of SiO2 and Mo Nano Particles on Seed Germination of Rice (Oryza sativa L.), International Journal of Agriculture and Food Science Technology. 2013;4(8):809-816.
Lin S, Reppert J, Hu Q, Hudson JS, Reid ML, Ratnikova TA, Rao AM, Luo H and Ke PC. Uptake, translocation and transmission of carbon nanomaterials in rice plants. Small. 2009;5(10):1128-32
Prasad TNVKV, Sudhakar P, Sreenivasulu Y, Latha P, Munaswamy V, Raja K, Reddy T S, Sreeprasad, Sajanlal PR, Pradeep T. Effect of nanoscale zinc oxide particles on the germination, growth and yield of peanut. Journal of Plant Nutrition. 2012;35 (6):905-927.
Feizi H, Moghaddam PR, Shahtahmassebi N, Fotovat A. Impact of bulk and nanosized titanium dioxide (TiO2) on wheat seed germination and seedling growth. Biol. Trace Elem. Res. 2012;146 (1):101-6.