Agronomic biofortification of zinc in rice: Influence of cultivars and zinc application methods on grain yield and zinc bioavailability

Saha, Sajal; Chakraborty, Mahasweta; Padhan, Dhaneshwar; Saha, Biplab K.; Murmu, Sidhu; Batabyal, Kaushik; Seth, Anindita; Hazra, Gora Chand; Mandal, Biswapati; Bell, R.W.

doi:10.1016/j.fcr.2017.05.023

Cited by 80 publications

(64 citation statements)

References 39 publications

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“…Farooq et al (2018) reported that all Zn application methods (soil application, foliar spray, seed primer, and seed coating) increased Zn concentration in rice grains at two different sites, which is consistent with the results of this research. Application of Zn caused a 52.2% increase in Zn bioavailability in the cooked product compared with control (Saha et al, 2017). Jaksomsak et al (2018) found that Zn foliar spray significantly increased the Zn accumulation in unpolished rice in all varieties, ranging from a 17.7% increase in the NR variety to a 50% increase in the RD21 variety.…”

Section: Resultsmentioning

confidence: 99%

Effects of Silicon and Zinc Nanoparticles on Growth, Yield, and Biochemical Characteristics of Rice

et al. 2019

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Silicon (Si) and Zn are beneficial for improving plant growth and human health. Fortifying rice (Oryza sativa L.) with Si and Zn can correct deficiencies of these elements in humans who consume rice. The present study evaluated the effects of different Si and Zn application forms as nanoparticles (NPs) foliar application and soil application (traditional fertilizers) on agronomic performance, grain yield (GY), Si and Zn accumulation, and protein content in rice tissue. The experiment was performed as a randomized complete block design with a factorial set of treatments that included three Si treatments (0, soil‐Si, nano‐Si) and three Zn treatments (0, soil‐Zn, nano‐Zn) with three replicates in two experimental farms (Mazandaran, Iran). The results indicated that Si and Zn applications by both NPs (300 g ha−1) and soil application (9 kg Zn ha−1 and 392 kg Si ha−1) ameliorated the yield components, yield, and nutrient accumulation in rice plant tissue. Application of nano‐Zn, nano‐Si, soil‐Zn, and soil‐Si significantly increased GY by 12.6, 9.5, 9.2, and 6.9%, respectively, above the control. Application of Si and Zn through NPs had greater effects than soil form for some experimental parameters, such as fortification of rice grains. Overall, our results suggest that Si and Zn applications as NPs could increase GY, reduce fertilizer costs and environmental pollution, and enrich rice grains with Si and Zn through improving agronomic and physiological traits, leading to higher GY and nutrients accumulation in grain. Core Ideas Application of Si and Zn increased the agronomic parameters and grain yield. There was no significant interaction among Si and Zn on grain yield. The nano‐Zn foliar spray had better effects than soil‐Zn application for grain Zn accumulation.

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Section: Resultsmentioning

confidence: 99%

Effects of Silicon and Zinc Nanoparticles on Growth, Yield, and Biochemical Characteristics of Rice

et al. 2019

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“…Finally regarding Fe, the foliar applications containing Zn caused a clear decrease in the Fe concentration. Iron-zinc interaction seems to be complex as both positive and negative (even neutral) effects between them can be found in the literature (Saha et al 2017;Zou et al 2019). Therefore in general terms, the Zn application had a negative influence in the concentration in forage of Mg, Ca, and Fe, all of them are essential nutrients for livestock, but in any case, even in the more severe diminutions, the concentration levels of those three minerals were above the threshold of recommended values (Suttle 2010).…”

Section: Discussionmentioning

confidence: 99%

Biofortification of Forage Peas with Combined Application of Selenium and Zinc Under Mediterranean Conditions

Reynolds-Marzal

Rivera-Martin

Rodrigo

et al. 2020

J Soil Sci Plant Nutr

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Agronomic biofortification can be used to alleviate the deficient intake of selenium (Se) and zinc (Zn) by livestock. These two essential micronutrients for human and animals play an important role in many physiological functions and biological processes. The aim of the present study was to evaluate the suitability of forage peas, crop with an increasing importance as plant protein source, to be biofortified with a combined treatment of Zn (as ZnSO 4-7H 2 O) and Se (as Na 2 SeO 4). A 2-year field experiment was established in southern Spain under semiarid Mediterranean conditions, by following a split-split-plot design. The study year (2017/2018, 2018/2019) was considered the main-plot factor, soil Zn application (50 kg Zn ha −1 , nil Zn) as a subplot factor, and foliar application (nil, 10 g Se ha −1 , 8 kg Zn ha −1 , 10 g Se ha −1 + 8 kg Zn ha −1) as a sub-subplot factor. The combined application of 50-kg soil Zn ha −1 and the foliar application of 10 g Se ha −1 + 8 kg Zn ha −1 was the most effective treatment to increase the concentration in forage of Zn and Se, 4-fold and 5-fold, respectively, as well as the Zn bioavailability, forage yield (close to 30%), and crude protein (~8%). Thus, forage peas could be considered a very suitable crop to be included in biofortification programs under Mediterranean conditions with Zn and Se as target minerals.

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“…Also, multi-country field trials established in the framework of the HarvestZinc project have demonstrated that agronomic biofortification, a fertilizer-based approach, is highly effective in improving grain concentrations of the targeted micronutrients in food crops as shown in wheat, rice, maize and bean for Zn, Se and I (Phattarakul et al, 2012;Zou et al, 2012;Mao et al, 2014;Ram et al, 2016;Cakmak et al, 2017). The impact of the fertilizer-use strategy on grain micronutrient concentration was much more pronounced for foliar in case of the use of foliar sprays, compared with soil applications, for example, Zn in rice plants grown under field conditions (Wissuwa et al, 2007;Phattarakul et al, 2012;Saha et al, 2017). Higher agronomic effectiveness of foliar application over soil application in boosting grain Zn has been also shown for several other crop species (Wang et al, 2012;Zou et al, 2012;Mao et al, 2014;Cakmak and Kutman, 2018).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Biofortification of Rice With Zinc, Iodine, Iron and Selenium Through Foliar Treatment of a Micronutrient Cocktail in Five Countries

et al. 2020

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Widespread malnutrition of zinc (Zn), iodine (I), iron (Fe) and selenium (Se), known as hidden hunger, represents a predominant cause of several health complications in human populations where rice ( Oryza sativa L.) is the major staple food. Therefore, increasing concentrations of these micronutrients in rice grain represents a sustainable solution to hidden hunger. This study aimed at enhancing concentration of Zn, I, Fe and Se in rice grains by agronomic biofortification. We evaluated effects of foliar application of Zn, I, Fe and Se on grain yield and grain concentration of these micronutrients in rice grown at 21 field sites during 2015 to 2017 in Brazil, China, India, Pakistan and Thailand. Experimental treatments were: (i) local control (LC); (ii) foliar Zn; (iii) foliar I; and (iv) foliar micronutrient cocktail (i.e., Zn + I + Fe + Se). Foliar-applied Zn, I, Fe or Se did not affect rice grain yield. However, brown rice Zn increased with foliar Zn and micronutrient cocktail treatments at all except three field sites. On average, brown rice Zn increased from 21.4 mg kg –1 to 28.1 mg kg –1 with the application of Zn alone and to 26.8 mg kg –1 with the micronutrient cocktail solution. Brown rice I showed particular enhancements and increased from 11 μg kg –1 to 204 μg kg –1 with the application of I alone and to 181 μg kg –1 with the cocktail. Grain Se also responded very positively to foliar spray of micronutrients and increased from 95 to 380 μg kg –1 . By contrast, grain Fe was increased by the same cocktail spray at only two sites. There was no relationship between soil extractable concentrations of these micronutrients with their grain concentrations. The results demonstrate that irrespective of the rice cultivars used and the diverse soil conditions existing in five major rice-producing countries, the foliar application of the micronutrient cocktail solution was highly effective in increasing grain Zn, I and Se. Adoption of this agronomic practice in the target countries would contribute significantly to the daily micronutrient intake and alleviation of micronutrient malnutrition in human populations.

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Agronomic biofortification of zinc in rice: Influence of cultivars and zinc application methods on grain yield and zinc bioavailability

Cited by 80 publications

References 39 publications

Effects of Silicon and Zinc Nanoparticles on Growth, Yield, and Biochemical Characteristics of Rice

Effects of Silicon and Zinc Nanoparticles on Growth, Yield, and Biochemical Characteristics of Rice

Biofortification of Forage Peas with Combined Application of Selenium and Zinc Under Mediterranean Conditions

Simultaneous Biofortification of Rice With Zinc, Iodine, Iron and Selenium Through Foliar Treatment of a Micronutrient Cocktail in Five Countries

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