Volume 1, Issue 2 ((Autumn & Winter) 2015)                   Iranian J. Seed Res. 2015, 1(2): 103-114 | Back to browse issues page

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Sedghi M, Hasani F, Seyed Sharifi R. Effect of Nano Zinc Oxide on the Kernel Filling Period in Sunflower (Helianthus annuus) Cultivars. Iranian J. Seed Res. 2015; 1 (2) :103-114
URL: http://yujs.yu.ac.ir/jisr/article-1-75-en.html
Department of Agronomy and Plant Breeding, College of Agricultural Sciences, University of Mohaghegh Ardabili, Ardabil, Iran. , mosedghi2003@yahoo.com
Abstract:   (36660 Views)
Application of zinc can improve the tolerance and resistance of plants especially sunflower to environmental stresses and be effective on kernel set and yield. To investigate the effects of zinc oxide nanoparticles on the length, effective period, the rate of kernel filling and kernel weight in sunflower cultivars, a factorial experiment based on randomized complete block design with three replications was conducted at the University of Mohaghegh Ardabili, Ardabil, Iran. Treatments were three sunflower cultivars as Aline 191, Aline 122 and Farrokh and three concentrations of nano zinc oxide including 0, 0.5 and 1 g lit-1 which sprayed at three stages. Results showed that interaction of cultivar and nano zinc oxide was significant on kernel filling rate, the effective period of kernel filling, maximum kernel weight and duration of kernel filling. The rate of filling and maximum kernel weight increased with 0.5 g lit-1 spraying of Nano zinc oxide in Aline 191 and 122, but in Farrokh cultivar was significantly reduced in comparison to the control. Also, no significant difference was found between 0, 0.5 and 1 g lit-1 of nano zinc oxide on kernel filling rate, effective kernel-filling period and duration in Farrokh cultivar. In conclusion, foliar application of zinc oxide nanoparticles led to the improvement of kernel weight and their filling parameters and the more appropriate response was observed in foreign cultivars for this treatment, while final kernel weight decreased in Farrokh cultivar. Therefore, it can be used 0.5 g lit-1 of nano zinc oxide for increasing grain yield in foreign cultivars of Aline.
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Type of Study: Research | Subject: Seed Physiology
Received: 2014/02/12 | Accepted: 2014/08/30

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