Simultaneous biofortification of wheat with zinc, iodine, selenium, and iron through foliar treatment of a micronutrient cocktail in six countries
Zou, Chunqin and Du, Yunfei and Rashid, A. and Ram, H. and Savaşlı, E. and Pieterse, P. J. and Ortiz-Monasterio, I. and Yazıcı, Mustafa Atilla and Kaur, C. and Mahmood, K. and Singh, S. and Le Roux, M. R. and Kuang, W. and Önder, O. and Kalaycı, M. and Çakmak, İsmail (2019) Simultaneous biofortification of wheat with zinc, iodine, selenium, and iron through foliar treatment of a micronutrient cocktail in six countries. Journal of Agricultural and Food Chemistry, 67 (29). pp. 8096-8106. ISSN 0021-8561 (Print) 1520-5118 (Online)
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Official URL: http://dx.doi.org/10.1021/acs.jafc.9b01829
Field experiments were conducted on wheat to study the effects of foliar-applied iodine(I) alone, Zn (zinc) alone, and a micronutrient cocktail solution containing I, Zn, Se (selenium), and Fe (iron) on grain yield and grain concentrations of micronutrients. Plants were grown over 2 years in China, India, Mexico, Pakistan, South Africa, and Turkey. Grain-Zn was increased from 28.6 mg kg(-1) to 46.0 mg(-1) kg with Zn-spray and 47.1 mg(-1) kg with micronutrient cocktail spray. Foliar-applied I and micronutrient cocktail increased grain I from 24 mu g kg(-1) to 361 mu g kg(-1) and 249 mu g kg(-1), respectively. Micronutrient cocktail also increased grain-Se from 90 mu g kg(-1) to 338 mu g kg(-1) in all countries. Average increase in grain-Fe by micronutrient cocktail solution was about 12%. The results obtained demonstrated that foliar application of a cocktail micronutrient solution represents an effective strategy to biofortify wheat simultaneously with Zn, I, Se and partly with Fe without yield trade-off in wheat.
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