Impact of Bulk and Nanosized Titanium Dioxide (TiO2) on Wheat Seed Germination and Seedling Growth

2011 ◽  
Vol 146 (1) ◽  
pp. 101-106 ◽  
Author(s):  
Hassan Feizi ◽  
Parviz Rezvani Moghaddam ◽  
Nasser Shahtahmassebi ◽  
Amir Fotovat
2018 ◽  
Vol 23 (1) ◽  
pp. 61 ◽  
Author(s):  
Javad Faraji ◽  
Ali Sepehri

<p>Effect of titanium dioxide nanoparticles (TiO2 NPs) (0, 500, 1 000 and<br />2 000 mg/L) and sodium nitroprusside (SNP) (0 and 100 M) as nitric<br />oxide (NO) donor, on wheat seed germination and seedling growth<br />were investigated under cadmium (Cd) stress (0, 50 and 100 mM CdCl2).<br />Concentration-dependent declining trends were observed in wheat<br />germination indices upon seed exposure to CdCl2 suspensions which<br />were more obvious under higher Cd stress. Exogenous sodium nitroprusside (SNP) and TiO2 nanoparticles (NPs) positively affected most germination indices under normal and stress conditions. In most cases, combined application of TiO2 NPs and SNP suspensions boosted stimulatory function of both compounds and moderated adverse effects of Cd treatments on wheat seed germination and seedling growth. 2 000 mg/L TiO2 + SNP (100 M) treatment recorded the best results regarding most germination indices under lower and higher (50 and 100 mM CdCl2) Cd stress. Overall, it could be concluded that application of TiO2 NPs in combination with SNP might be a promising approach in counteracting the adverse effects of Cd stress on wheat seed germination and early growth.</p>


2017 ◽  
Vol 51 (6) ◽  
pp. 568-581 ◽  
Author(s):  
Davide Gerna ◽  
Thomas Roach ◽  
Wolfgang Stöggl ◽  
Johanna Wagner ◽  
Patrizia Vaccino ◽  
...  

2012 ◽  
Vol 19 (6) ◽  
pp. 1343-1347
Author(s):  
Chang-Hai SHI ◽  
Yu-Xin LI ◽  
Hong-Mei ZHAI ◽  
Jing YANG ◽  
Dong-Xiao LI ◽  
...  

2013 ◽  
Vol 864-867 ◽  
pp. 2532-2536
Author(s):  
Fu Ju Xie ◽  
Pu Chen ◽  
Li Hua Mao

The effects of oil-contaminated soil on plant growth are the focus study area all over the world. In this paper, two kinds of local plant seeds germination and seedlings growth in oil-contaminated soil were studied by germination experiment. Five different oil concentration gradients (0g/kg, 0.2g/kg, 5g/kg, 20g/kg, 40g/kg) were set up in this experiment, and the seed germination rates and bud length of wheat and rice cultivated in thermostat were observed and recorded. The results showed that crude oil took negative effects on wheat seed germination and germinability. With the oil concentration increasing, the germination rate of wheat seed and germinability decreased respectively. Crude oil impacted the seeding growth obviously, even under low oil concentration (20g/kg). Seedling growth almost stopped under high oil concentration such as 40 g/kg. Crude oil promoted germination and germinability of rice seed. The germination rates and germinabilities of three Oil concentrations (0.2 g/kg, 5 g/kg, 20 g/kg, 40 g/kg) were all higher than that in pure soil, further, the higher the oil concentration was, the germination rates and germinabilities were higher. Oil also accelerated the rice seedling growth under three different concentrations.


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