Volume 3, Issue 2 ((Autumn & Winter) 2017)                   Iranian J. Seed Res. 2017, 3(2): 119-127 | Back to browse issues page

‎ 10.29252/yujs.3.2.119
‎ 20.1001.1.23831251.1395.3.2.8.9

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Effect of Titanium Dioxide Nanoparticles and Carbon Nanotube on Seed Germination Characteristics of Some Hordeum vulgare Hulled Varieties
Mahmod reza Tadayon * , Mohammad Rahimi
of Seed Science and Technology of Shahrekord University, Shahrekord, Iran , mrtadayon@yahoo.com
Abstract:   (20433 Views)

The purpose of this study was to evaluate the effect of Nano TiO2 and Nano CNT on some germination indices and growth parameters of some hulled barley cultivars. The experiment was conducted in a laboratory at Shahrekord University during 2014. The study was a factorial, adopting a completely randomized design with four replications. Treatments consisted of titanium dioxide nanoparticles and carbon nanotube (CNT) in four concentrations (0, 10, 30 and 60 mg.l-1) which were applied to seeds of hulled barley cultivars such as Bahman, Makoii and Nosrat. The traits measured were the dry weight of seedling and seedling length, germination percentage, germination rate, mean germination time, the percentage of resistance of radical, seedling vigor length and weight index. The results showed that carbon nanotubes treatments with 60 mg.l-1 had a significant impact on germination percentage, germination rate, seedling vigor length and weight index and seedling dry weight, as compared with other treatments. In this experiment, the highest percentages of resistance of radicle, seedling vigor weight index and seedling dry weight of Nosrat Cultivar were obtained under 60 mg.l-1 carbon nanotube treatment, which was 70, 122.2 and 64.9%, respectively, as compared with control treatment. In addition, 60 mg.l-1 carbon nanotube treatment increased the seedling vigor of Makoii cultivar by 39.8%, as compared with the control treatment. The findings were that in terms of seedling vigor length and weight index, seedling length, seedling dry weight and the percentage of resistance of radical, the Nosrat Cultivar showed better morphological characteristics than Bahman and Makoii cultivars, under laboratory conditions.
 

Keywords: Seedling vigor, Nosrat cultivar, Bahman cultivar, Seedling fresh weight, Seedling dry weight
Full-Text [PDF 160 kb]   (3092 Downloads)    
Type of Study: Research | Subject: General
Received: 2015/11/5 | Revised: 2017/12/28 | Accepted: 2016/06/14 | ePublished: 2017/06/12
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