Novel Effects of Nanoparticulate Delivery of Zinc on Growth, Productivity, and Zinc Biofortification in Maize (Zea mays L.)

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• 作者：Layam Venkata Subbaiah ; Tollamadugu Naga Venkata Krishna Vara Prasad ; Thimmavajjula Giridhara Krishna ; Palagiri Sudhakar ; Balam Ravindra Reddy ; Thalappil Pradeep
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2016
• 出版时间：May 18, 2016
• 年：2016
• 卷：64
• 期：19
• 页码：3778-3788
• 全文大小：601K
• 年卷期：0
• ISSN：1520-5118

文摘

In the present investigation, nanoscale zinc oxide particulates (ZnO-nanoparticulates) were prepared using a modified oxalate decomposition method. Prepared ZnO-nanoparticulates (mean size = 25 nm) were characterized using techniques such as transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), and zeta potential analyzer. Different concentrations (50, 100, 200, 400, 600, 800, 1000, 1500, and 2000 ppm) of ZnO-nanoparticulates were examined to reveal their effects on maize crop on overall growth and translocation of zinc along with bulk ZnSO₄ and control. Highest germination percentage (80%) and seedling vigor index (1923.20) were observed at 1500 ppm of ZnO-nanoparticulates. The yield was 42% more compared to control and 15% higher compared to 2000 ppm of ZnSO₄. Higher accumulation of zinc (35.96 ppm) in grains was recorded with application of 100 ppm followed by 400 ppm (31.05 ppm) of ZnO-nanoparticulates. These results indicate that ZnO-nanoparticulates have significant effects on growth, yield, and zinc content of maize grains, which is an important feature in terms of human health.