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2014 | 16 | 3 | 25-29

Article title

Interaction of SiO2 Nanoparticles with Seed Prechilling on Germination and Early Seedling Growth of Tall Wheatgrass (Agropyron Elongatum L.)


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The effect of six SiO2 nanosized concentrations (0, 5, 20, 40, 60 and 80 mg L-1) and three seed prechilling treatments (control, seed prechilling before nano SiO2 treatments, treatments of seed with nano SiO2 before prechilling) on germination and seedling growth of tall wheatgrass (Agropyron elongatum L.) were studied. Results indicated that application of SiO2 nanoparticles significantly increased seed germination of tall wheatgrass from 58 percent in control group to 86.3 and 85.7 percent in 40 and 60 mg L-1, respectively. Applying SiO2 nanoparticles increased dry weight of shoot, root and seedling of tall wheatgrass. Increasing concentration of nanoparticle from 0 up to 40 mg L-1 increased seedling weight around 49 percent compared to the control, nevertheless decreased under 60 and 80 mg L-1 treatments. In conclusion, seed prechilling in combination with SiO2 nanoparticles largely broke the seed dormancy for A. elongatum.









Physical description


1 - 9 - 2014
3 - 10 - 2014


  • Gorgan University of Agricultural Sciences and Natural Resources, Faculty of Range Land and Watershed Management, Gorgan, Iran
  • Ferdowsi University of Mashhad, Faculty of Natural Resources and Environment, Mashhad, Iran
  • University of Torbat-e-Heydarieh, Faculty of Agriculture and Natural Resources, Torbat-e-Heydarieh, Iran
  • Institute for Advanced Studies in Basic Sciences (IASBS), Department of Physics, Gava zang, Zanjan, Iran


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