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Simultaneous Biofortification of Wheat with Zinc, Iodine, Selenium, and Iron through Foliar Treatment of a Micronutrient Cocktail in Six Countries

Author:
Zou, Chunqin, Du, Yunfei, Rashid, A., Ram, H., Savasli, E., Pieterse, P. J., Ortiz-Monasterio, I., Yazici, A., Kaur, C., Mahmood, K., Singh, S., Le Roux, M. R., Kuang, W., Onder, O., Kalayci, M., Cakmak, Ismail
Source:
Journal of agricultural and food chemistry 2019 v.67 no.29 pp. 8096-8106
ISSN:
1520-5118
Subject:
biofortification, field experimentation, foliar application, grain yield, iodine, iron, selenium, wheat, zinc, China, India, Mexico, Pakistan, South Africa, Turkey (country)
Abstract:
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 μg kg–¹ to 361 μg kg–¹ and 249 μg kg–¹, respectively. Micronutrient cocktail also increased grain-Se from 90 μg kg–¹ to 338 μg 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.
Agid:
6542558